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Tuning your apps and games for long screen devices

Posted by Fred Chung, Developer Advocate

In recent months, there's a growing trend for handset makers to ship new devices with long screen aspect ratio (stretching beyond 16:9), many of which also sport rounded corners. This attests to the Android ecosystem's breadth and choice. Pixel 2 XL and Huawei Mate 10 Pro are just two of many examples. These screen characteristics could bring a very immersive experience to users and they take notice of apps and games that don't take advantage of the long aspect ratio screen on these new devices. Therefore it is important for developers to optimize for these screen designs. Let's have a look at related support provided by the Android OS.

Optimize for long aspect ratio screens

Most apps using standard UI widgets will likely work out-of-the-box on these devices. Android documentation details techniques for flexibly working on multiple screen sizes. However, some games and apps with custom UIs may run into issues due to incorrect assumptions on certain aspect ratios. We're sharing a few typical issues faced by developers, so you can pay attention to those relevant to you:

  • Certain sides of the screen are cropped. This makes any graphic or UI elements in the affected regions look incomplete.
  • Touch targets are offset from UI elements (e.g. buttons). Users may be confused on UI elements that are seemingly interactive.
  • For full screen mode on rounded corners devices, any UI elements very close to the corners may be outside of the curved corner viewable area. Imagine if a commerce app's "Purchase" button was partially obstructed? We recommend referencing Material Design guidelines by leaving 16dp side margins in layouts.

If responsive UI is really not suitable for your situation, as a last resort declare an explicit maximum supported aspect ratio as follows. On devices with a wider aspect ratio, the app will be shown in a compatibility mode padded with letterbox. Keep in mind that certain device models provide an override for users to force the app into full-screen compatibility mode, so be sure to test under these scenarios too!

Targets API level 26 or higher: Use android:maxAspectRatio attributes.

Targets API level 25 or lower: Use android.max_aspect meta-data. Note that maximum aspect ratio values will be respected only if your activities don't support resizableActivity. See documentation for detail.

System letterboxes an app when the declared maximum aspect ratio is smaller than the device's screen.

Consider using side-by-side activities

Long aspect ratio devices enable even more multi-window use cases that could increase user productivity. Beginning in Android 7.0, the platform offers a standard way for developers to implement multi-window on supported devices as well as perform data drag and drop between activities. Refer to documentation for details.

Testing is crucial. If you don't have access to one of these long screen devices, be sure to test on the emulator with adequate screen size and resolution hardware properties, which are explained in the emulator documentation.

We know you want to delight your users with long screen devices. With a few steps, you can ensure your apps and games taking full advantage of these devices!

Strides in Stewardship, Part 3: Applying Universal Design to Create Technology That Works for Everyone

Using a smartphone is an everyday task that comes easily to most. The typical user needs no instruction on how to send an email, request a taxi or stream a TV show, as navigating through various menus and apps is, for the most part, straightforward and intuitive. But for the millions of smartphone users with a physical, sensory or cognitive disability, operating a device can be a frustrating experience to say the least.


As our world becomes increasingly more digital, and technology plays a bigger role in our lives, Samsung Electronics is working to develop various features that enable its products to be accessed and used to the greatest extent possible by all people. Let’s take a closer look at the company’s approach to do so in part three of our “Strides in Stewardship” series.



Reflecting Feedback to Improve Accessibility

“Over the past decade, as mobile trends have shifted from conventional cell phones to smartphones, many of us with visual impairments have found it difficult to use the new devices,” said Gwangman Moon, a South Korean man who lost his sight in 1999. “Today’s smartphones don’t have mechanical keyboards. So, because we rely on our sense of touch to receive a lot information, we need to carry a separate keyboard to use them.”


Moon, who first got involved with Samsung through a company-sponsored computer education program for the visually impaired, now participates as a member of Samsung Supporters, a volunteer group that tests out smartphone features for usability and offers feedback to improve device accessibility. Most recently, he has helped to advance the Voice Assistant on the Galaxy S8 by determining which features cannot be activated using only voice commands.



In addition to listening to external feedback from people like Moon who use Samsung products in their daily lives, the company has also established Smart Angels, a team of employees that voluntarily educates people with various disabilities on how to use their devices. The volunteers also listen to the opinions of the users to better understand how the company can further enhance accessibility.




Eliminating Obstacles Through Universal Design

To reflect feedback received through these interactions, Samsung has developed and applied a variety of auxiliary technical solutions across the entire Galaxy lineup so that just about everyone can take advantage of its innovative products and features.


For example, users with visual impairments can make use of high contrast fonts, keyboards and downloadable themes as well as a High Contrast Mode for the Samsung Internet app  that all enable easier reading and higher visibility. Voice Assistant, meanwhile, provides spoken feedback about information on the screen, and Rapid Key Input reads out the keyboard character being touched, thus eliminating the need for additional accessories.



Similarly, those with hearing impairments are able to utilize the Sound Detectors tool, which provides visual cues and vibration when the sound of a baby crying or a doorbell ringing is detected, and Flash Notification, which alerts the user of alarms and notifications with a flash of the camera light or screen.


Easy Screen Turn On and Universal Switch features make the device easier to control through the use of gestures and/or movements, enhancing usability for those with mobility and dexterity impairments.


These are just a few of the growing number of features Samsung has employed to make the daily task of using a smartphone easier and more enjoyable for all.



Making Life Easier, One Service at a Time

In addition to UX and app enhancements, Samsung’s mobile services are also adding an element of convenience to everyday activities.


Bixby Voice eliminates the need to go through multiple steps to accomplish a mobile task, allowing users, for instance, to dictate and send a text to a friend or check their daily schedule with a simple voice command. Likewise, Bixby Voice makes it possible to quickly engage with friends, family and other communities on social media and in text messaging applications.


“Bixby is revolutionary,” explained Moon of his own personal experiences. “Because a message or comment can be transcribed by simply speaking it out, we can save a lot of time by not having to type it. In this way, Bixby instills in me a sense of confidence when communicating with others.”


Bixby Vision also makes life easier by using the phone’s camera app to relay information about one’s surroundings. To illustrate, it can vocalize which food items are in front of a user so they can know that they’re opening the specific potato chips or soft drink they want to consume.



Another example is Samsung DeX. While the service enhances the mobile experience by allowing users to use their smartphone like a desktop by providing a seamless, secure mobile to PC transition, it also enables those who experience difficulties typing or using gestures on a smartphone to more easily navigate content via a larger display.


“Now I can use a keyboard and mouse to control my smartphone more conveniently,” noted Donghee Lee, a smartphone user who controls his device with his toes. “It’s very well designed in terms of accessibility for people with disabilities.”




A More Accessible Future

Samsung’s efforts to enhance accessibility have recently been praised by various organizations including ONCE, the National Organization of the Blind in Spain, who recognized the Galaxy S8 and S8+  as devices that comply with the universal accessibility requirements and are properly equipped for visually impaired users. Additionally, the National Human Rights Commission of Korea will present Inho Baek, Samsung’s Mobile Accessibility UX Designer, with the Human Rights Award of Korea on December 8.


Baek is honored to have been nominated for such an accolade, but admits that he is more excited to learn of the many ways Samsung’s products have and will continue to influence users’ lives.


“Since implementing the new accessibility features on Samsung’s Galaxy products, many people, particularly those with disabilities, have told us that their quality of life has greatly improved,” he said. “But we have a vision that will drive the company to improve even further. In fact, it’s our responsibility. It’s my hope that through universal design, everyone will one day be able to enjoy new and beneficial experiences, regardless of their level of ability.”

Why Quartz Launched its New Edition With a Facebook Group: A Q+A With Editor Khe Hy

By Julia Smekalina, News Partnerships

In October, Quartz launched a new edition called Quartz At Work. It’s directed toward business professionals who are looking to be better managers, build a career, and stay up-to-date with the latest research and trends around what it means to thrive in the modern workplace. When it came to building a presence on Facebook, Quartz At Work decided to launch as a closed Facebook Group, rather than a Page. The group is called Manage It: A Community for Managers by Quartz At Work, and it has become a place where readers can have meaningful and productive discussions around the topics that matter to them most.

We talked with Khe Hy, one of the editors of Quartz At Work, about why creating a Facebook Group was better suited to the edition, how they plan on managing it, how they’ll measure its success, and what their content strategy looks like.

Why did you decide to use a Facebook Group, rather than a Facebook Page, to launch the new Quartz At Work edition?
Something we’ve always heard from both readers and peers is that people didn’t know where to go to learn how to become a better manager. There’s no single manual for it and every situation is unique. This suggests to us that the ability to truly engage in conversations — whether we’re taking an active role in the conversation or not — would be better suited for this community of readers than the “push” approach of a traditional page.

Also, as a news team, we are going to experiment with various management/organizational approaches and we wanted a place where we could share and discuss those results with our readers — and we’ll encourage other members of the group to share feedback based on experiences with their own teams.

How are you thinking about your content strategy for the group?
We want the group to be global, actionable, and playful, and we’re developing a strategy that’s meant to be consistent with that vision. The moderators’ posts will typically have some kind of question to spark discussion and we will never just post links in isolation. We’ll encourage posts to facilitate the curation of ideas (whether asking them to share go-to podcasts or books, or interesting longform pieces they’ve come across) and ignite debate on timeless questions (i.e. “how do you grow your emotional intelligence?”) and more niche ones (i.e. Slack etiquette).

We want the voice of the group to be consistent with our voice as a newsroom, so you’ll also see a good helping of emojis, gifs, and punchy headlines.

How are you facilitating group member participation?
We’ve been fortunate that even a basic question such as “What skills are you looking to develop as a manager” has been answered over 100 times since our group’s creation, providing us with a nice little lens (and flywheel) about the topics that our group members care about.

Our editors and reporters, even Quartz editor in chief Kevin Delaney, are actively responding to posts/comments and in some cases encouraging commenters to broaden a pointed remark into a fuller post. We’ve asked a few polls, have crowdsourced some reading lists, and have kept the weekends a bit lighter as we broaden the discussion around more playful topics (i.e. “What music puts you in the flow?” or “Share something that you’re proud of”).

Who is your target audience/membership for the group?
This group is for anyone around the world who manages others, from first-time managers to seasoned executives, and really for anyone who aspires to lead.

What KPIs (Key Performance Indicators) are you considering to determine whether this group is successful?
Our KPIs are focused on the quality and breadth of engagement and activity. These KPIs will likely benefit from member growth, but we’re not assuming that more members equates to higher-quality engagement.

Do you have any monetization plans for the group in the future?
We’re taking a holistic approach, focusing on the monetization of Quartz At Work as a whole. Our goal for the group is to create deeper engagement with the Quartz At Work community, fostering deeper engagement with the broader brand and with that, our ability to monetize it successfully.

How do you manage and staff the group day to day? How much of a commitment is that?
Four Quartz editors (me, Heather Landy, Sarah Kessler, and Jean-Luc Bouchard) are responsible for the group’s editorial strategy and are designated moderators. Jean-Luc and I have primary responsibility for the administrative aspects of the group. Internally, we have a content calendar and a Slack channel dedicated to managing the group. It’s still early to know the full extent of the commitment.

In the very early days we were more focused on getting the right posts to ignite conversation; as the group has grown, the activity has been centered around keeping the conversation going.

What do you hope readers will get out of being part of this group that would be different if they just followed a Page?
We believe that reading about management topics can only take one so far. You need to put these ideas in action by creating a genuine learning community, laboratory, and forum to discuss—and that applies to a really wide breadth of work-related topics.

We believe that community involvement will also help Quartz At Work to stay on top of the trends and innovations that are powering work in the new global economy.

Are there any specific moments, interactions, discussions etc. that have stood out so far?
We invited Tiago Forte, the founder of the productivity consultancy Forte Labs (and Quartz At Work contributor), to answer questions from the group. His “AMA” showed the breadth of questions and challenges that managers face each day. On one end of the spectrum, he was a cheerleader encouraging folks to start any kind of productivity system. And on the other end he addressed the subtle psychological behaviors of teams, such as how to implement knowledge management in decentralized organizations.

Learn More about Facebook Groups

If you have a Facebook Page and want to link or create a new group to engage your community — please find more detail here.

Want to know more about our latest tools to help grow and manage your group? We recently announced new tools such as welcome posts, badges, member profiles, new management controls, and expanded group insights.

Hard Questions: So Your Kids Are Online, But Will They Be Alright?

Raising the Next Generation: What Are Parents Thinking and How Can Facebook Help?

By Antigone Davis, Public Policy Director, Global Head of Safety

Raising a child in today’s digital world can be overwhelming. As the mom of a college-aged daughter, I’ve seen how technology can be beneficial and educational in some ways, but distracting and concerning in others. My daughter and online technologies have grown up together. She’s always been more adept than I am at moving around in her digital universe, and I’ve often found myself anxiously trying to keep up.

I know I’m not alone in the questions I’ve asked, the mistakes I’ve made and the worries I’ve had as a parent when it comes to kids and technology. As a mom and a former teacher and policy advisor for a state attorney general, I have heard many people voice these concerns. I believe that the largest social media platform in the world has the opportunity and obligation to address these issues, and I wanted to be a part of that. Many of us at Facebook are parents, and naturally we’re thinking about technology’s role in the lives of children and families. Other technology companies are grappling with this as well.

Children today are online earlier and earlier. They use family-shared devices — and many, as young as six or seven years old, even have their own. They love to take photos, watch videos, talk to their grandparents and of course they want to be just like their older siblings and use the apps they’re using too. It can be hard for caregivers to manage. While kids have more ways than ever to learn and benefit from online experiences, three out of four parents say they worry about their kids’ online safety and want more control.

Over the last 18 months, we’ve worked closely with leading child development experts, educators and parents as we prepared to build our first product for kids. We created an advisory board of experts. With them, we are considering important questions like: Is there a “right age” to introduce kids to the digital world? Is technology good for kids, or is it having adverse affects on their social skills and health? And perhaps most pressing of all: do we know the long-term effects of screen time?

Today we’re rolling out our US preview of Messenger Kids a new app that makes it easier for kids to video chat and message with family and friends when they can’t be together in person. And so I wanted to explain why Facebook decided to create an app for children, and why I think it’s the right time.

We’ll share what we’ve learned so far and the principles we’ve created with the help of external experts as our company launches its first product built for kids.

What Research Tells Us

If it feels like kids are starting to use technology at younger ages, you’re right. Data from the research firm Dubit shows that kids are already using technology on a regular basis. Some 93% of 6-12 year olds in the US have access to tablets or smartphones, and 66% have their own device. They’re playing games, watching videos and video chatting with family.

Research shows that kids are using apps that are intended for teens and adults. We collaborated with National PTA on a study with more than 1,200 American parents of children under the age of 13, and three of every five parents surveyed said their kids under 13 use messaging apps, social media or both, while 81 percent reported their children started using social media between the ages of 8 and 13.

As kids become more tech-savvy, parents are worrying about the potential dangers that exist online. According to a Dubit study, 74% of parents of 6-12 year olds are concerned about their children interacting with strangers or people they don’t know online, and we’ve heard in countless conversations that parents’ top concern about their kids using technology is online safety.

“My concern is safety, getting friend requests from people you don’t know, chatting with people you don’t know, giving out information to strangers.”
—Christine, parent participant, National PTA Roundtable

We know that when building for kids, we have to get it right and we’re taking that responsibility seriously. Simply complying with the law is not enough. We want to create technologies that benefit, rather than harm or are merely neutral on the lives of children. We’re proceeding carefully and will share what we learn along the way.

Listening to Parents and Kids

Over the last 18 months, we’ve talked to thousands of parents and kids across the country in Arizona, California, Colorado, Kentucky, Maryland, New York, North Carolina and Virginia, as well as parents overseas. With National PTA and Blue Star Families, we brought parents together to hear how they’re using technology with their kids and their views on how to parent in a tech-filled world.

What we found is that nearly all of these conversations involved both positive and negative experiences with kids and tech. On the positive side, we heard wonderful stories of connection between military parents stationed abroad and their families back home using Facebook and other apps. But we also heard some scary things, like a mom who found the online chat her 7 year-old had while playing a video game with an adult male stranger. It began with seemingly friendly questions about her son’s favorite sports teams but slowly led to questions about what he looked like, before finally pushing the boy to send a photo of himself. She was terrified.

“I do feel overwhelmed, particularly because I’m not a big tech person. There’s a lot to keep up with, and I’m not keeping up with it.”
—Norah, parent participant, New Mexico State University Learning Games Lab

Kids told us that the primary reason they want to use social media and messaging platforms is to have fun, which means that an environment that emphasizes safety at the expense of joy and laughter will fail the customer satisfaction test — and potentially leave kids vulnerable to less controlled and more risky social environments. We believe that it’s possible to give kids a fun experience that provides more peace of mind for parents, too.

Though parents often feel confused or unprepared for how to handle their children’s online experiences, many also told us that they’re conflicted because they see the benefit of technology in their children’s lives — particularly when it’s used for education or connecting with family. In the study we conducted with National PTA, 63% of parents said they believe social media provides children with digital skills that are mandatory in society today.

“Because [my kids] see my presence on Facebook and that I’m talking with family… they want a bit part of that. But obviously one of the biggest concerns we have is safety. So that’s a challenge, but I also don’t want them not to be familiar with it because it’s going to be important as they get older.”
—Nikki, parent participant, National PTA Roundtable

But in all of our research, there was one theme that was consistent: parents want to know they’re in control. They want a level of control over their kids’ digital world that is similar to the level they have in the real world. Just as they want to know whose house their child will be visiting for a playdate, they want to know who their child is connecting with online. And just as they want to say “lights out” at night, they also want to be able to say “phones off.”

Talking to the Experts

With all of this feedback in mind, we knew it was important to consult with experts to help us shape our work and own principles as a technology company. Our team of advisors includes top experts in the fields of child development, online safety and children’s media currently and formerly from organizations such as the Yale Center for Emotional Intelligence, Connect Safely, Center on Media and Child Health, Sesame Workshop and more. The American Academy of Pediatrics offers excellent guidelines to parents for monitoring their kids’ digital consumption, though we know there are still a lot of unanswered questions about the impact of specific technologies on children’s development.

These advisors are helping us grow our knowledge and guide us as we develop products like Messenger Kids. They challenge us as we think about these important issues.

In partnership with these advisors, we’ve developed a set of principles to guide us. They are:

  1. Putting kids first
  2. Providing a safe space that fosters joy, humor, play and adventure
  3. Enabling kids to mine their own potential by building for empowerment, creativity and expression
  4. Helping kids build a sense of self and community
  5. Recognizing the relationship between parent and child, and that we take our responsibility and their trust in us seriously.

These guiding principles help us as we navigate a world where children are increasingly using technology at younger ages, parents are asking for more help, and we’re considering how to provide technologies to meet the needs of the modern family and benefit kids and parents alike.

Applying These Principles When Building Products

We created Messenger Kids with the belief that parents are ultimately the best judges of their kids’ technology use, and the parents we’ve spoken to have asked for a better way to control the way their children message.

We hope that developing an app that gives parents more control over their kids’ online experience is a step in the right direction, but we think the industry also needs a better understanding of tech’s long-term impact on children. That’s why today we’re also announcing a new $1 million research fund to work with academics, experts and partners across the industry to further explore this issue.

Read more about our blog series Hard Questions. We want your input on what other topics we should address — and what we could be doing better. Please send suggestions to

National PTA does not endorse any commercial entity, product, or service. No endorsement is implied.

Update on the Global Internet Forum to Counter Terrorism

At last year’s EU Internet Forum, Facebook, Microsoft, Twitter and YouTube declared our joint determination to curb the spread of terrorist content online. Over the past year, we have formalized this partnership with the launch of the Global Internet Forum to Counter Terrorism (GIFCT). We hosted our first meeting in August where representatives from the tech industry, government and non-governmental organizations came together to focus on three key areas: technological approaches, knowledge sharing, and research. Since then, we have participated in a Heads of State meeting at the UN General Assembly in September and the G7 Interior Ministers meeting in October, and we look forward to hosting a GIFCT event and attending the EU Internet Forum in Brussels on the 6th of December.

The GIFCT is committed to working on technological solutions to help thwart terrorists’ use of our services, and has built on the groundwork laid by the EU Internet Forum, particularly through a shared industry hash database, where companies can create “digital fingerprints” for terrorist content and share it with participating companies.

The database, which we announced our commitment to building last December and became operational last spring, now contains more than 40,000 hashes. It allows member companies to use those hashes to identify and remove matching content — videos and images — that violate our respective policies or, in some cases, block terrorist content before it is even posted.

We are pleased that, Cloudinary, Instagram,, LinkedIn, Oath, and Snap have also recently joined this hash-sharing consortium, and we will continue our work to add additional companies throughout 2018.

In order to disrupt the distribution of terrorist content across the internet, companies have invested in collaborating and sharing expertise with one another. GIFCT’s knowledge-sharing work has grown quickly in large measure because companies recognize that in countering terrorism online we face many of the same challenges.

Although our companies have been sharing best practices around counterterrorism for several years, in recent months GIFCT has provided a more formal structure to accelerate and strengthen this work. In collaboration with the Tech Against Terror initiative — which recently launched a Knowledge Sharing Platform with the support of GIFCT and the UN Counter-Terrorism Committee Executive Directorate — we have held workshops for smaller tech companies in order to share best practices on how to disrupt the spread of violent extremist content online.

Our initial goal for 2017 was to work with 50 smaller tech companies to to share best practices on how to disrupt the spread of violent extremist material. We have exceeded that goal, engaging with 68 companies over the past several months through workshops in San Francisco, New York, and Jakarta, plus another workshop next week in Brussels on the sidelines of the EU Internet Forum.

We recognize that our work is far from done, but we are confident that we are heading in the right direction. We will continue to provide updates as we forge new partnerships and develop new technology in the face of this global challenge.

Introducing Messenger Kids, a New App For Families to Connect

By Loren Cheng, Product Management Director

Today, in the US, we’re rolling out a preview of Messenger Kids, a new app that makes it easier for kids to safely video chat and message with family and friends when they can’t be together in person. After talking to thousands of parents, associations like National PTA, and parenting experts in the US, we found that there’s a need for a messaging app that lets kids connect with people they love but also has the level of control parents want.

To give kids and parents a fun, safer solution, we built Messenger Kids, a standalone app that lives on kids’ tablets or smartphones but can be controlled from a parent’s Facebook account. Whether it’s using video chat to talk to grandparents, staying in touch with cousins who live far away, or sending mom a decorated photo while she’s working late to say hi, Messenger Kids opens up a new world of online communication to families. This preview is available on the App Store for iPad, iPod touch and iPhone.

Co-Developed With Parents, Kids and Experts

Today, parents are increasingly allowing their children to use tablets and smartphones, but often have questions and concerns about how their kids use them and which apps are appropriate. So when we heard about the need for better apps directly from parents during research and conversations with parents, we knew we needed to develop it alongside the people who were going to use it, as well as experts who could help guide our thinking.

In addition to our research with thousands of parents, we’ve engaged with over a dozen expert advisors in the areas of child development, online safety and children’s media and technology who’ve helped inform our approach to building our first app for kids. We’ve also had thought-provoking conversations around topics of responsible online communication, parental controls and much more with organizations like National PTA and Blue Star Families, where we heard firsthand how parents and caregivers approach raising children in today’s digitally connected world.

And for the past several months, many families at Messenger and Facebook have used the app and helped come up with some of the key features like the easy-to-use parental controls.

More Fun For Kids, More Control For Parents

Messenger Kids is full of features for kids to connect with the people they love. Once their account is set up by a parent, kids can start a one-on-one or group video chat with parent-approved contacts. The home screen shows them at a glance who they are approved to talk to, and when those contacts are online.

Playful masks, emojis and sound effects bring conversations to life.

In addition to video chat, kids can send photos, videos or text messages to their parent-approved friends and adult relatives, who will receive the messages via their regular Messenger app.

A library of kid-appropriate and specially chosen GIFs, frames, stickers, masks and drawing tools lets them decorate content and express their personalities.

Messenger Kids gives parents more control. Parents fully control the contact list and kids can’t connect with contacts that their parent does not approve. Parents control kids accounts and contacts through the Messenger Kids Controls panel in their main Facebook app:

How to Get Started

Every child account on Messenger Kids must be set up by a parent. For parents, setting your child up with a Messenger Kids account is done in four steps:

  1. Download: First, download the Messenger Kids app on your child’s iPad, iPod touch, or iPhone from the App Store.
  2. Authenticate: Then, authenticate your child’s device using your own Facebook username and password. This will not create a Facebook account for your child or give them access to your Facebook account.
  3. Create an account: Finish the setup process by creating an account for your child, where all you’ll need to do is provide their name. Then the device can be handed over to the child so they can start chatting with the family and friends you approve.
  4. Add contacts: To add people to your child’s approved contact list, go to the Messenger Kids parental controls panel in your main Facebook app. To get there, click on “More” on the bottom right corner in your main Facebook app, and click “Messenger Kids” in the Explore section.

More Information and What’s Next

There are no ads in Messenger Kids and your child’s information isn’t used for ads. It is free to download and there are no in-app purchases. Messenger Kids is also designed to be compliant with the Children’s Online Privacy and Protection Act (COPPA).

This preview of Messenger Kids is only available in the US at this time on the Apple App Store, and will be coming to Amazon App Store and Google Play Store in the coming months.

We’ve worked extensively with parents and families to shape Messenger Kids and we’re looking forward to learning and listening as more children and families start to use the iOS preview.

To learn more about Facebook’s approach to building technologies for kids and the questions we’ve asked ourselves and discussed with others along the way, read our Hard Questions blog post.

For more specific information about the app, visit

National PTA does not endorse any commercial entity, product, or service. No endorsement is implied.

KDDI and Samsung Complete First Successful Demonstration of 5G on a Train Moving at 100km/hour


KDDI and Samsung Electronics have successfully completed the first 5G demonstration on a moving train traveling at over 100 km/hour (over 60 mph). This was achieved along a section of track where the distance between two stations was approximately 1.5km (nearly 1 mile). During the demonstration, the companies achieved a successful downlink and uplink handover as well as a peak speed of 1.7 Gbps.


The tests were carried out from October 17th through the 19th in the city of Saitama in Japan, near Tokyo. For the tests, Samsung’s 5G pre-commercial end-to-end solution was used, which is composed of a 5G router (CPE), radio access unit (5G Radio), virtualized RAN and virtualized core.


The demonstration leveraged capabilities driven by 5G, such as high throughput, low latency and massive connections, which verified potential services and use cases that would be highly-beneficial to passengers and operators of high-speed trains. This could pave the way to vastly improved backhaul for onboard WiFi, superior passenger infotainment and increased security and analytics.


In addition to a successful downlink and uplink handover at more than 100km/hour (over 60 mph), 8K video was downloaded via the CPE installed on-board, and a 4K video, filmed on a camera mounted on the train, was able to be uploaded.


“In collaboration with Samsung, KDDI has opened up the possibility for new 5G vertical business models, such as a high-speed train. With 5G expected to bring railway services to a whole new dimension, the success of today’s demonstration in everyday locations such as a train and a train station is an important milestone indicating 5G commercialization is near,” said Yoshiaki Uchida, Senior Managing Executive Officer at KDDI. “To fulfill our aim to launch 5G by 2020, KDDI will continue exploring real-life scenario experiments for diverse 5G use and business cases together with Samsung.”


“The potentials that 5G holds is powerful enough to transform the landscape of our daily lives,” said Youngky Kim, President and Head of Networks Business at Samsung Electronics. “The success of today’s demonstration is a result of our joint research with KDDI, which we will continue to pursue as we explore next generation networks and use cases This will include research on diverse spectrums and technologies, as well as new business models and applications.”


Since 2015, KDDI and Samsung Electronics have been closely collaborating to demonstrate 5G millimeter wave performance in various scenarios. This includes a multi-cell handover demonstration that took place in February, where the device was mounted on a car that traveled in the busy streets of Tokyo (Link), and a high-speed mobility test with the device attached on a car racing at 200km/h in Yongin, Korea in September (Link).



About KDDI

KDDI, a Fortune Global 500 company and one of Asia’s largest telecommunications providers, has a proven global track record of high quality service delivery. We provide a multitude of services, including mobile phone services, fixed-line communication, and data centers, thus making us the optimum one-stop solution provider for everything telecommunications and IT environment related.

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