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Meet JrTrack 4
The trusted choice in children’s smart watches
Built for childhood, backed by common sense, and trusted by thousands of thoughtful parents. JrTrack 4 is the award-winning smart watch for kids, offering GPS tracking, texting, calling, and customizable controls – so you always stay connected.
Get JrTrack 4
Fully flexible for how you do family
Thoughtfully built with all the features families need for real life.
About COSMO
1995 Simple.
2025 Smart
The kids smart watch with all the essentials and zero distractions. Discover why thousands of families trust COSMO to connect, protect, and bring their family closer together.
500k+
Calls blocked from JrTrack watches every month
4.8
Stars on Google from hundreds of reviews
2M+
Messages shared by COSMO families
400k+
Moments and memories shared with JrTrack
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with the bestselling kids smart watch.
The app parents trust
JrTrack 4 delivers what matters most — connection, safety, and simplicity. No distractions, no surprises — just a reliable tool that helps you parent with confidence.
GPS Tracking
Know where they are, right when you need to.
School Mode
Keeps them focused while you stay in the loop.
Contact Approvals
Only the people you approve can call or text.
Plug into the moment
JrTrack 4 is the most trusted kids smartwatch for a reason — it works for real life. From the school drop-off line to weekend adventures, Cosmo keeps families connected through every first, every milestone, and every memory.
Calling & Messaging
The right people are always just a tap away — no group chats required.
Photos & Video
Let them capture the big moments.
Activity Tracker
Tracks their steps one at a time.These are the days they’ll remember
Independence
Give them the confidence they need for growing up — one step at a time.
Healthy Habits
They'll start choosing the stairs over the elevator.
Connection
They’ll learn the value of staying in touch with the people that matter most.
Safety
You’ll have confidence knowing they’re always just a touch away.
Join the movement.
“He loves it because now he can call and text people on the approved contact list, and I love it because I can see his location anytime.”
"My son calls this his “mission watch.” I call it my sanity-saver. It’s tough, water-resistant, and gives real-time location updates. I set up safe zones and get notified if he leaves them. Plus, I love that only approved contacts can call."
“10/10 recommend. My child has gotten to the age of sleep overs, and as an over protective parent I want direct access via communication with my child. Great size watch, nice size display, I followed the instructions to a T and set up was a breeze! Wicked, wicked, satisfied.”
“I bought this for a gift for my 8 year old daughter and she absolutely loves it! She’s able to call and text me, without it being an interruption because it has school mode. The battery lasts long and it has Spotify for him to listen to music while he rides his scooter.”
The first phone kids and parents can love
Remember your first flip phone? They’ll remember this.
Get JrTrack 4
COSMO Insights
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Frequently asked
You've got questions, we've got answers!
JrTrack is built to be the perfect first phone for kids ages 6-12. It's a stand-alone with its own SIM card and phone number and its equipped with all the essential functions kids and parents need for connection: Calling, messaging, GPS tracking, safety alerts, activity tracking, alarms & reminders, and more. Plus, JrTrack is engineered to only allow parent-approved contacts and is fire-walled against any social media or internet browsing.
And JrTrack pairs right to a parent app on your phone where you can control settings, manage approved contacts, check GPS location, set School Mode distraction free times, and
COSMO Technologies is a Denver-based family tech company on a mission to bring families closer together and inspire amazing real-world childhoods. We're a team of parents, technologists, entrepreneurs, and educators who are passionate about building the best solutions that keep kids safe and families connected. COSMO was founded in 2020 by our CEO Russell York; since then we've helped build a true movement among tens of thousands of families choosing safer, smarter solutions for inspire the best of childhood (and give parents more peace of mind!). Our JrTrack kids smart watch has been named a best pick for families by the likes of the NYT Wirecutter, 1000 Hours Outside, ParentMap, PCMag and more. We're also the #1 selling 4G kids smartwatch on Amazon!
JrTrack is built from the ground up to the best smart watch for kids. Here are main features of our award-winning JrTrack kids smart watch:
- Real calling & texting across the US, Canada, and Mexico
- Family-safe messaging (text, pictures, videos, and audio)
- Group messaging (parent-approved contacts only)
- GPS tracking and SafeZone alerts
- Location history
- SOS Mode
- Emergency calling capabilities (optional)
- Activity tracker
- School mode settings (for no distractions!)
- Alarms & reminders
- Customizable wallpapers and ringtones
- 24 Hrs + battery life
And here's the best part: Our team is continually listing to customer feedback and releasing new updates and features for families! You can always keep an eye on what's new on our Updates Page.
We might be biased but it's for a good reason! We think JrTrack stands out as the best buy for families for a few key reasons:
1) Best safety features: Our JrTrack 4 kids smart watch is equipped with our proprietary SafeCORE technology. It's a four-front safety system that makes sure your child can always call for help, and that you're always connected.
2) Best connection: With COSMO, you get family safe True Texting. With most other kids smart watches, you're limited to messaging in a separate app. But with COSMO, you get real texting - that means you can share text, pictures, audio and voice messages, as well as family-safe group messaging. It's real texting, made specifically and safely for kids.
3) Best value: You won't find this level of features + savings anywhere else. We're proud to offer the premium kid-safe device on the market at a better price that makes sense for families. Save anywhere from $50-$150 when you shop COSMO JrTrack vs. others.
Great! We're here to help make sure you feel confident with how you keep your family connected. We have some great resources below to help you learn more:
- Check out our complete FAQs for lots more info!
- Compare COSMO with other leading brands: COSMO vs. Gabb | COSMO vs. Fitbit Ace | COSMO vs. Gizmo