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.