10 Best ECG Watches 2026 in the United States

The Apple Watch Series 10 (42mm GPS model) is a solid choice if you want a smartwatch with reliable ECG capabilities and broad health tracking features. Its ECG app is easy to use and offers accurate heart rhythm monitoring, alongside other useful health insights like blood oxygen levels, sleep apnea notifications, and menstrual cycle tracking. The display is larger and brighter than before, making information easy to see at a glance. Comfort is improved with a thinner, lighter design and a soft denim sport band, so wearing it all day feels natural.

Battery life supports typical daily use with about 18 hours, but fast charging means you can quickly top up when needed, which is handy. Connectivity is seamless with your iPhone, enabling calls, texts, music, and Siri voice control, though it requires an iPhone to unlock its full potential. Additional safety features like fall detection and crash detection add peace of mind, especially for active users or those with health concerns. It’s also water-resistant up to 50 meters and dust resistant, making it durable for swimming and outdoor activities.

The battery life might feel short if you rely heavily on GPS or continuous health monitoring, and it’s only compatible with newer iPhones. Also, while it offers many health features, some, like blood oxygen, are more wellness-oriented rather than strict medical tools. If you want a smartwatch primarily for ECG and comprehensive health tracking with smart connectivity, especially if you’re already in the Apple ecosystem, this watch fits well. But if you need longer battery life or compatibility with non-Apple phones, you might want to explore other options.

The Fitbit Sense 2 is designed as a comprehensive health and fitness smartwatch, offering strong ECG capabilities with its ECG app to detect atrial fibrillation and irregular heart rhythms. Its stress management tools, including continuous stress detection and mindfulness content, add value for users interested in mental well-being. The watch also provides detailed sleep tracking with personalized profiles and smart wake features, which can help improve sleep quality. Battery life is quite good, lasting over six days on a charge, meaning less frequent charging hassle. Comfort-wise, the design is lightweight and includes two band sizes, making it suitable for all-day wear.

The built-in GPS supports outdoor activity tracking, and 40+ exercise modes cover most fitness routines. Connectivity is solid with Bluetooth for calls, texts, notifications, and integration with Alexa and Google services. Additional health sensors like SpO2 and 24/7 heart rate monitoring further enhance its health insights. The watch also offers durable water resistance up to 50 meters, making it suitable for swimming.

Some features like Google Maps are limited by platform and timing, and the smartwatch may feel a bit complex initially for users new to wearables. Fitbit Premium membership adds personalized insights but requires a subscription after a trial period. The Fitbit Sense 2 is well suited for users seeking an all-around health-focused watch with strong ECG and stress tracking, balancing comfort and smart features, although beginners might need some time to get accustomed to it.

The Garmin Instinct® 3 GPS Smartwatch offers a solid mix of features tailored for outdoor enthusiasts. The battery life is impressive, lasting up to 18 days, which is excellent for those who spend extended periods outdoors without access to charging facilities. The 1.2” AMOLED display ensures vibrant visibility, crucial for clear reading in different lighting conditions. Compatibility is solid, supporting Bluetooth, Wi-Fi, and USB connectivity, which means it can pair with most modern devices.

Additional health features like advanced sleep monitoring and Pulse Ox are useful for keeping track of wellness. The built-in flashlight adds convenience, proving useful in low-light conditions. However, the smartwatch may be bulkier and heavier at 53 grams, which might not be comfortable for all users especially during intense activities. The Garmin OS is functional but might not have as many apps as other ecosystems like Apple or Android.

The Garmin Instinct® 3 is a robust choice for outdoor and fitness enthusiasts who need a durable smartwatch with long battery life and comprehensive health tracking features.