10 Best ECG Watches 2026 in the United States

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.

The Garmin Venu Sq 2 GPS Smartwatch stands out with its bright AMOLED display, which is always-on for quick glances and easy readability. One of its major strengths is the impressive battery life, lasting up to 11 days in smartwatch mode, making it convenient for users who don't want to charge it frequently. Health monitoring is comprehensive, covering body battery energy levels, sleep, respiration, hydration, stress, heart rate, and even women's health. This makes it suitable for those who are serious about tracking their health metrics throughout the day and night.

For fitness enthusiasts, the watch offers over 25 built-in sports apps and preloaded workouts, plus the option to create custom workouts via the Garmin Connect app. It's also compatible with both Apple and Android smartphones, ensuring you stay connected with smart notifications for calls, texts, and social media alerts. Water resistance allows for swimming and other water activities, adding to its versatility. Garmin Pay contactless payments are a handy feature for those who prefer to leave their wallet at home.

On the downside, the smartwatch may feel a bit heavy for some users at 1.3 ounces, and its square shape might not appeal to everyone. Additionally, users seeking specific ECG monitoring might need to look at other models. The Garmin Venu Sq 2 is a robust choice for comprehensive health tracking and fitness, catering well to active lifestyles and those wanting an easy-to-use, feature-rich smartwatch.