10 Best ECG Watches 2025 in the United States

The Apple Watch Series 10 (42mm, GPS + Cellular) is a strong choice for anyone looking for an advanced ECG smartwatch. Its ECG feature allows you to take heart readings anytime with reliable notifications for irregular rhythms and abnormal heart rates, which is vital for heart health monitoring. The display is noticeably larger and brighter, making it easy to read, and the lightweight aluminum case with a soft sport band provides comfortable wear throughout the day.

Battery life supports up to 18 hours of typical use, which covers a full day, while a fast charging feature can quickly restore most of the battery in about 30 minutes. This makes it convenient if you need a quick top-up. Connectivity is excellent with cellular support, enabling calls, texts, and music streaming without your iPhone nearby, plus international emergency calling adds extra peace of mind.

Health tracking goes beyond ECG, including sleep monitoring with sleep apnea detection, cycle tracking, and multiple sensors for heart rate, temperature, and workout intensity. The variety of workout modes and water resistance up to 50 meters make it suitable for swimmers and fitness enthusiasts. Safety features like fall and crash detection can automatically alert emergency services if needed.

The watch is easy to use with a familiar interface for iPhone users, customizable watch faces, and physical buttons combined with touch controls. It is also durable, offering dust resistance and a crack-resistant screen, suitable for active lifestyles.

The battery life, while decent, may not last multiple days on a single charge without using Low Power Mode. It’s designed primarily for compatibility with iPhones, so Android users won’t benefit. The price point tends to be on the higher side compared to some competitors.

For iPhone owners seeking a comfortable, feature-rich ECG watch with strong health insights and dependable connectivity, the Apple Watch Series 10 serves as a reliable option. Its combination of accuracy, safety features, and fitness tracking meets the needs of users who value an all-in-one health and communication device.

The Apple Watch Series 10 is a versatile smartwatch that excels in the ECG category, making it a strong choice for fitness enthusiasts and health-conscious users. One of its standout features is the ECG accuracy, allowing users to take heart readings anytime, which can be invaluable for monitoring heart health. The watch also provides notifications for irregular heart rhythms and abnormal heart rates, enhancing its health-tracking capabilities.

Battery life is decent, with fast charging capabilities, allowing users to recharge 80% in about 30 minutes. However, heavy users who frequently engage with features like GPS and health tracking might find the need to charge it daily. Its water resistance of up to 50 meters is a significant plus, making it suitable for swimmers or those who enjoy water sports.

The larger and higher-quality display improves usability and visibility, especially when interacting with various apps and notifications. Compatibility with Apple devices is seamless, allowing for easy integration into an Apple ecosystem, which is great for existing Apple users. The watch's additional health features, like tracking sleep and menstrual cycles, cater to a broad range of health needs. Individuals who do not own an iPhone might find this watch less useful, as many of its features are optimized for iOS. The customization options for watch faces and bands add a personal touch, but finding a variety of third-party apps can be limited compared to other platforms. Additionally, the watch's higher price point could be a drawback for budget-conscious consumers.

The Apple Watch Series 10 is a strong choice if you're looking for an ECG watch that combines health tracking with smart features. Its ECG app is reliable for monitoring your heart rhythm and can alert you to irregularities, making it useful for anyone concerned about heart health. Battery life offers about 18 hours of typical use, which covers a day but may require daily charging; however, it supports fast charging, reaching 80% in around 30 minutes, so topping up is quick and convenient. The watch is very comfortable and lightweight with a slim design, and its larger, bright Always-On Retina display makes reading notifications and health data easy. It connects effortlessly with your iPhone via Bluetooth and Wi-Fi, supporting calls, messages, and music on the go, though GPS-only models rely on an iPhone for cellular connectivity.

Beyond ECG, it includes numerous health features like sleep tracking with apnea detection, menstrual cycle insights, respiratory rate monitoring, and fall/crash detection for added safety. The interface is user-friendly with intuitive controls and Siri voice assistance to help navigate without hassle. Durability-wise, it’s swimproof up to 50 meters and dust resistant, giving peace of mind for active lifestyles. One drawback might be its dependence on Apple’s ecosystem, so it's best suited for iPhone users. Also, the battery life may feel short if you prefer longer stretches between charging.

This makes the Apple Watch Series 10 an excellent, well-rounded health and fitness companion that fits nicely for those wanting accurate ECG monitoring paired with smart connectivity and safety features.