10 Best Long Battery Life Smartwatch 2025 in the United States

The Apple Watch Series 10 is a robust smartwatch that packs in a lot of features for health, fitness, and connectivity, but it falls short of expectations in the long-battery-life category. With a maximum battery life of up to 18 hours under normal use, it can extend to 36 hours in Low Power Mode. The fast charging feature is commendable, allowing the watch to reach 80% in about 30 minutes, which is convenient for quick top-ups but still requires frequent charging for all-day use.

The display is impressive, featuring an Always-On Retina display that’s bright and easy to read. Its health and fitness tracking capabilities are among the best in the market, providing advanced metrics, ECG functions, and comprehensive sleep tracking. This makes it a good option for those who are serious about monitoring their health. Another strength is its build quality. The watch is durable, water-resistant up to 50 meters, and dust-resistant (IP6X-certified), making it suitable for various activities, including swimming and outdoor sports. Its integration with the Apple ecosystem allows users to stay connected seamlessly, enjoying features like notifications and calls directly from their wrist.

Customization options are plentiful, allowing users to choose from various bands and watch faces, making it a stylish accessory. On the downside, users who are not already invested in Apple products may find it less appealing due to compatibility restrictions with iOS devices. Also, while the watch includes impressive features, the additional cost compared to other smartwatches may not justify the purchase for casual users.

While the Apple Watch Series 10 excels in health tracking and connectivity, its battery life may not meet the expectations of users looking for a long-lasting smartwatch, making it better suited for those who prioritize advanced features over extended battery performance.

The Samsung Galaxy Watch 7 40mm Bluetooth AI Smartwatch in Cream offers a blend of advanced features and practical functionality, making it a strong contender for those seeking a long-battery-life smartwatch. One of its primary strengths is its emphasis on fitness and wellness tracking, including heart rate monitoring, sleep tracking, and personalized wellness tips. The watch also utilizes Galaxy AI to provide an Energy Score, helping users understand their readiness for the day based on previous activity, which can be motivating for fitness enthusiasts.

The touchscreen and lightweight design add to its user-friendly experience. The product does come with a charging device. For those focused on health tracking and a seamless user experience, the Samsung Galaxy Watch 7 appears to be a reliable option.

The Apple Watch Ultra 2 stands out in the long-battery-life smartwatch category, particularly for fitness enthusiasts and adventurers. With a robust battery life of up to 36 hours for regular use and an impressive 72 hours in Low Power Mode, it suits users who engage in prolonged outdoor activities where charging might not be feasible. The rugged titanium case and water resistance up to 100 meters make it an excellent choice for hikers, swimmers, and divers. The superbright Always-On Retina display ensures visibility even in bright conditions, which is beneficial for outdoor use.

One of its key strengths is the advanced GPS functionality, providing accurate tracking for a variety of sports such as running and cycling. Users can access detailed workout metrics, which can enhance their training experiences. The cellular capability allows for calls and music streaming without needing an iPhone nearby, adding to the convenience for those on the go.

There are some drawbacks to consider. The size and weight of the 49mm model may not be suitable for everyone, particularly those with smaller wrists. The price point is on the higher side, which could be a barrier for budget-conscious buyers. Additionally, while the battery life is commendable, heavy users of GPS and cellular functions may find themselves needing to charge more frequently than expected.

The Apple Watch Ultra 2 is a powerful tool for outdoor athletes and adventurous users due to its durability, extensive features, and battery life. However, its size, weight, and cost may not appeal to everyone.