10 Best Heart Monitors 2025 in the United States

The Apple Watch SE 3 is a well-rounded heart monitor packed inside a smartwatch. It uses a second-generation optical heart sensor that provides solid accuracy for heart rate tracking, along with notifications for unusual heart rhythms and high or low heart rates, which can be vital for health awareness. Its GPS and multiple connectivity options (Bluetooth, Wi-Fi) keep you connected when paired with an iPhone, although it relies on that connection for many features.

Battery life lasts about 18 hours, enough for daily use but requiring nightly charging, though fast charging is a helpful plus. The always-on, bright OLED display makes it easy to check your stats anytime without lifting your wrist. Comfort-wise, the lightweight aluminum case and soft sport band suit daily wear, fitting various wrist sizes.

Beyond heart monitoring, it includes extras like temperature sensing, sleep tracking with sleep apnea alerts, fall and crash detection, and mindfulness apps. While its fitness tracking is versatile, it might be more than needed if you only want a basic heart monitor. For best experience, using an iPhone is usually necessary. This device is ideal for users seeking a multi-functional, stylish smartwatch with reliable heart monitoring integrated into a broader health and safety toolkit.

The Fitbit Charge 6 is a versatile fitness and heart monitor designed to track your heart rate continuously throughout the day and during exercise. It offers good accuracy with 24/7 heart rate monitoring and even syncs your heart rate in real time to compatible gym machines, which is a nice feature for those who use equipment like treadmills or ellipticals. This tracker is GPS-enabled, helping you map your runs or bike rides without needing a phone. In terms of connectivity, it uses Bluetooth and Wi-Fi, allowing you to control music, get notifications, and even make contactless payments with Google Wallet, which adds convenience beyond just health tracking.

The device has a rechargeable lithium-ion battery typical for devices of this size. While it’s light at 4.7 ounces, the device thickness and rectangular shape might feel a bit bulky for some users, though it does come with two sizes of bands to help with comfort and fit. The screen size is moderate (1.04 inches), making it easy to read stats during workouts. Additional features include stress management scoring, personalized sleep tracking with a Sleep Score, and a Smart Wake alarm designed to wake you gently. The device supports over 40 exercise modes and has built-in GPS for outdoor activities without needing a phone.

Fitbit Charge 6 suits active individuals wanting detailed heart rate data, GPS tracking, and smart features like music control and payments, all in a compact fitness tracker. It balances functionality and comfort fairly well but may require regular charging and could feel slightly bulky compared to simpler models.

The Fitbit Inspire 3 is a lightweight, wrist-worn heart monitor designed to track your heart rate 24/7 with solid accuracy for everyday health awareness. It fits comfortably with included small and large bands, making it suitable for most wrists. The rectangular 0.76-inch color touchscreen is easy to navigate and shows your stats clearly. Connectivity is handled via Bluetooth, allowing the device to sync smoothly with both iOS and Android smartphones, which also lets you receive calls and text notifications directly on the tracker. Battery life is impressive, lasting up to 10 days on a single charge, so you won’t need to recharge often.

Alongside heart rate monitoring, it offers additional features helpful for overall wellness, such as stress management scores, workout tracking with over 20 exercise modes, sleep analysis with a personalized sleep score, and menstrual health tracking. It also alerts you to unusual heart rhythms and provides SpO2 readings, which can be valuable for spotting potential health issues early. However, GPS is only available through a connected smartphone, so it’s not fully standalone for outdoor tracking.

While the screen is smaller compared to some other fitness trackers, it’s sufficient for basic data viewing without overwhelming complexity. This model suits those looking for an easy-to-use heart monitor that also encourages a healthier lifestyle with helpful insights and reminders, rather than specialized medical-grade monitoring.