10 Best Waterproof Activity Trackers 2025 in the United States

The SUUNTO Race GPS Sports Watch is a robust choice for those who need a durable and feature-rich activity tracker. Its 100m water resistance rating makes it suitable for various water activities, including swimming. The standout dual-band GNSS system ensures precise GPS tracking, even in challenging environments like high-rise cities or dense forests, which is beneficial for outdoor enthusiasts. Additionally, its detailed offline maps and navigation features mean you won't need a network connection to stay on track during your adventures.

The 26-day battery life in standby mode and up to 40 hours with full GPS usage is impressive, reducing the need for frequent recharging. Fast charging is another convenient feature, with the watch fully charging in just two hours. Activity tracking is comprehensive, covering cycling, climbing, running, camping, and hiking. Health monitoring is also extensive, including heart rate, sleep, steps, calories, and blood oxygen levels. The HRV recovery feature and nutrition reminders support well-being and training recovery.

The AMOLED touchscreen is high-definition and user-friendly, and the watch is compatible with the SUUNTO app for additional insights and training support. However, the watch might be complex for users who prefer simple interfaces, as it offers a multitude of features and settings that could be overwhelming initially. Additionally, it is relatively large with a 1.43-inch screen, which might not be comfortable for all users. Despite these minor drawbacks, the SUUNTO Race GPS Sports Watch is packed with capabilities, making it a great option for serious athletes and outdoor adventurers.

The Fitbit Ace 3 is designed specifically for kids aged 6 and up, making fitness tracking fun and easy with animated clock faces that change as children reach their activity goals. It offers solid all-day activity tracking, including steps and active minutes, which helps encourage movement. One of its strong points is the water resistance rated up to 50 meters, allowing kids to wear it while swimming or during water play without worry. Battery life is impressive for this category, lasting up to 8 days on a single charge, reducing the hassle of frequent recharging.

The device does not include GPS functionality, so it won’t track routes or distances in detail, a feature more common in adult trackers. It also lacks heart rate monitoring, which limits health insights but may be a deliberate choice to keep the device simple and kid-friendly. The build is lightweight and durable enough for active children, and the interface is straightforward, compatible with both iOS and Android devices.

Sleep tracking is a nice addition, helping kids develop healthy sleep habits with reminders and silent alarms. The Fitbit Ace 3 is well suited for parents seeking an easy-to-use, water-resistant activity tracker focused on basic movement and sleep tracking for children, but it does not cater to those looking for advanced fitness or location features.

The Fitpolo Smart Watch is a solid option for those seeking a waterproof activity tracker with a strong focus on health and fitness monitoring. Its IP68 rating means it can handle sweat, rain, and brief water exposure like washing hands or light swimming, making it reliable for daily use around water. The large 1.8-inch HD touchscreen is bright and responsive, with plenty of watch face customization options to suit personal style. It supports over 105 sports modes, covering a wide range of activities from running and hiking to yoga and swimming. Continuous heart rate, blood oxygen, stress, and sleep tracking provide a comprehensive picture of your health throughout the day and night.

Battery life is convenient, offering about 7 days of use on a full 2.5-hour charge, or up to 30 days on standby — good for users who want minimal charging interruptions. However, the watch lacks built-in GPS, so it relies on your phone for location tracking, which might not suit those wanting fully independent GPS for outdoor workouts. The inclusion of Alexa voice control and Bluetooth calling adds smart features rarely seen at this price point, though Bluetooth calls work only within 8-10 meters and texting from the watch is not supported.

Compatibility with both Android (6.0 and above) and iOS (9.0 and above) devices is broad, making it versatile across most smartphones. While the build is light and comfortable, specific durability details beyond water resistance are not emphasized, so users who need ruggedness for very tough conditions might want to consider other models. The user interface is straightforward, syncing well via Bluetooth and offering notifications from many popular apps. This watch is well-suited for users who want an affordable, waterproof fitness tracker with extensive activity tracking and health monitoring features, coupled with some smart capabilities. It is ideal for those who don’t need standalone GPS and prefer a stylish, easy-to-use device for everyday fitness and casual water exposure.