10 Best Waterproof Activity Trackers 2025 in the United States

The WHOOP 4.0 is a comprehensive fitness and activity tracker that stands out for its continuous monitoring capabilities and personalized health insights. It includes a 12-month membership, the Onyx SuperKnit band, and a water-resistant battery pack, making it suitable for users new to WHOOP. The device offers extensive monitoring features, tracking heart rate, respiratory rate, heart rate variability, skin temperature, blood oxygen levels, daily activities, and sleep. This data helps users understand their health and optimize their performance.

The WHOOP Journal feature is particularly useful for logging daily behaviors that impact sleep and recovery. With a battery life of up to 5 days, users can enjoy continuous data collection without frequent recharging, and on-the-go charging is a convenient added benefit. The device is also backed by a supportive community, which can be motivating for fitness enthusiasts and those looking to improve their wellness.

However, there are a few drawbacks. The product does not feature a traditional display, which might be inconvenient for users accustomed to checking data on the go. While it is water-resistant, it may not be fully waterproof for all activities. Additionally, the initial cost includes a one-year subscription, but ongoing monthly fees may be a consideration for long-term use. The lack of built-in GPS might also be a downside for those who engage in outdoor activities requiring precise tracking. Despite these drawbacks, the WHOOP 4.0 is a solid choice for those serious about monitoring and improving their health and fitness, offering a broad range of features and community support.

This fitness tracker offers solid features for anyone looking for a waterproof activity tracker that covers the basics well. With a 5ATM water resistance rating, it can handle sweat, washing hands, and rain comfortably, but it’s not meant for deep-water activities like swimming or diving. The battery life is decent, lasting 5 to 7 days on a full charge with only about 2 hours needed to recharge, which is convenient for regular use. It tracks steps, calories, distance, and active time, and supports 9 different sports modes, making it versatile for various workouts.

Heart rate monitoring and sleep tracking are included, providing useful health insights throughout the day and night. The device lacks built-in GPS, so it relies on your phone for location tracking during outdoor activities. The screen is large enough (1.3 inches) and modern-looking, with simple notifications from your phone, though you can’t respond to messages or calls directly. The watch works with both iPhones and Android phones but not with tablets or computers, which slightly limits device options.

Its build seems sturdy for daily wear but may not stand up to more extreme conditions. This tracker is well-suited for casual users or fitness beginners who want reliable monitoring and waterproof protection without advanced GPS or calling 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.