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It also tracks some more advanced overnight metrics, including respiration, heart rate variability (HRV, a measure of your nervous system activity and an indicator of stress levels), skin temperature variation (whether you were hotter or colder compared with your baseline), and SpO2. When you wear it to bed at night, it tracks the duration and quality of your shut-eye, as well as your sleep stages (light, deep, and REM). On the safety front, the Charge 5 can alert you if your heart rate is unusually high or low. The Fitbit app offers plenty of post-workout data, including intensity maps showing your pace and heart rate zones throughout your route. Its SmartTrack feature automatically recognizes and records certain workouts including walking and running, while its Active Zone Minutes metric motivates you to meet the American Heart Association's recommendation of 150 minutes of moderate to intense activity per week. These include an electrodermal activity (EDA) sensor that tracks your body's response to stress, and an electrocardiogram (ECG) app that checks for signs of atrial fibrillation (AFib), an irregular heart rhythm.įor fitness tracking, the Charge 5 features 20 sport profiles (six of which you can add to the device at a time), a built-in GPS so you don't need to bring your phone to track your route during outdoor runs, and a 24/7 heart rate monitor. This generation builds on its excellent predecessors with an attractive AMOLED color touch screen and metal case, along with several useful health monitoring features that were previously available only on Fitbit's more expensive Sense smartwatch. The Fitbit Charge 5 offers more bang for your buck than any other fitness tracker we have tested. Apple also recently added a few new features for cyclists, including the ability to automatically detect bike rides and remind you to start an Outdoor Cycle workout. With a WR50 rating, the Series 7 is safe for shallow-water activities like swimming in a pool or the ocean, and its Workout app offers tracking options for both. It features an always-on altimeter for real-time elevation readings GPS and GNSS to measure your distance, pace, and route and a compass for wrist-based navigation. Its one-day battery life won't suit ultra-marathoners, but the Series 7 is still a good option for casual runners. The Apple Watch Series 7 is best for iPhone users in search of a wearable that doubles as a fitness tracker to monitor your workouts, and a smartwatch to keep you connected. The Series 7 requires an iPhone 6s or later that runs iOS 15 or higher, so it's not an option if you use Android. We also like that the Series 7's automatic 20-second handwashing timer, which can keep you honest when scrubbing up.

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It also supports Emergency SOS and international emergency calling, plus can automatically seek help if it detects a hard fall.

On the safety front, the watch can alert you if it detects a high or low heart rate, irregular heart rhythm, and loud sounds that can damage your hearing. Its Activity, Exercise, and Stand rings can help motivate you to get moving, and its companion Fitness+ workout streaming service ($9.99 per month or $79.99 per year after a free 3-month trial) offers a variety of studio-style classes with excellent music and instruction you can follow at home or the gym. It accurately tracks your activity, blood oxygen saturation (SpO2), fertility windows, heart rate, menstrual cycle, overnight respiration, sleep, workouts, and more. The Apple Watch Series 7 offers a broad suite of built-in fitness, health, and safety tools, not to mention the best selection of third-party apps for any smartwatch (including Runkeeper, Strava, and Nike Run Club, to name a few).

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Digital watch multiple countdown timers