10 Best Fitness Smart Watch For Kids 2026 in the United States

The Fitbit Google Ace LTE is a kids' smartwatch that brings several unique features to the table. It comes with built-in cellular 4G LTE and GPS location tracking, which ensures kids are never far from reach. The ability for kids to make calls and send messages without needing a phone number adds a layer of convenience and safety, with up to 20 additional contact slots for connectivity. This watch is also designed to keep kids active with a variety of movement-based games available through the Fitbit Arcade, which encourages physical activity through fun challenges that record steps and movements.

One of its standout features is the Noodle activity ring that celebrates achievements with animations, making it engaging for children. Additionally, the School Time feature helps limit gameplay during school hours to ensure children stay focused, although they can still reach out if necessary. Durability is addressed with Corning Gorilla Glass 3, a protective bumper case, and water resistance up to 50 meters, making the watch suitable for everyday wear and tear. The battery life is impressive, offering over 16 hours of usage, and fast charging that provides 11 hours of battery life in just 30 minutes.

However, it requires a Fitbit Ace Pass data plan for full functionality, which could be an added expense. The design is child-friendly and comfortable, with a 1.6-inch touchscreen and a lightweight build. It's compatible with both Android and iOS devices, though a Google account and the Fitbit Ace app are required for use. One potential drawback is that the watch's primary focus on games and activities might not appeal to every child, especially those who prefer traditional activity tracking. Additionally, parents may need to monitor the usage to ensure balanced screen time. The Tap to Pay feature may be useful but requires a supported kids' debit card, which might not be feasible for all families. Despite these considerations, the Fitbit Google Ace LTE is a robust and engaging option for kids, promoting activity and safety while keeping them connected.

The Fitbit Ace 3 Activity Tracker for Kids is designed for children aged 6 and up, offering a balance of durability, functionality, and fun. With up to 8 days of battery life, kids can spend more time being active without frequent recharges. The tracker features all-day activity tracking, sleep tracking, and water resistance up to 50 meters, making it suitable for various activities including swimming and outdoor play.

Animated clock faces and virtual badges keep kids engaged and motivated to stay active, while parents can manage their child’s tracker through a family account, ensuring ease of use and monitoring. The device is lightweight and comfortable to wear, catering to kids' preferences and needs.

Despite minor drawbacks such as a relatively small screen size at 0.96 inches, the Fitbit Ace 3 is a robust and child-friendly fitness tracker that promotes healthy habits in a fun and interactive way.

The JrTrack 3 Smart Watch for Kids by Cosmo is designed with safety and connectivity in mind for children ages 6 to 12. It stands out with its built-in phone and texting features, allowing kids to call, text, and share pictures and voice messages, all controlled by parents through a secure app. This makes it a great choice for parents who want to stay connected to their kids without giving them unrestricted internet access. Its GPS tracking and safety functions, like custom SafeZones and an SOS alert mode, provide peace of mind by helping parents know where their child is and allowing kids to send quick help signals when needed.

Durability-wise, the watch is water-resistant up to 5 feet and has a sturdy build suitable for active kids. The activity tracker helps monitor daily movement, encouraging healthy habits. The watch also offers a School Mode to minimize distractions during class. As a device with cellular and GPS functions, moderate daily charging may be needed.

The user interface is designed for kids with a simple proprietary system, making it easy to navigate, although some users might find it less feature-rich compared to mainstream smartwatches. Compatibility is mostly seamless with the COSMO Mobile service, which is included with flexible plans, but it may not work as smoothly with other carriers. Comfort-wise, its modern rectangular shape and light weight make it easy for kids to wear all day. This watch is well suited for parents seeking a safe, durable, and connected device that keeps kids reachable and encourages physical activity without exposing them to the wider internet.