The Fitbit Charge 3 also has a SpO2 sensor that will be used to diagnose breathing disturbances while sleeping and week-long battery life. In addition, the Charge 3’s strap is removable, and Fitbit and several third parties make straps in different colors, patterns, and materials. The Charge 3 comes in three sizes, which should fit most wrists (Fitbit has a sizing chart on its site). The Charge 3 is also swim-proof and can track your laps in the pool. But that doesn’t mean the Charge 3 still isn’t a good device, and it’s now $30 less than the Charge 4.ĭesigned for those who want to keep healthy and stay in shape but aren’t going to be running marathons, the Charge 3 has a reasonably large, grayscale touchscreen display that shows your heart rate, distance traveled, and notifications from your smartphone if connected. The Fitbit Charge 3 was previously our top pick as the best Fitbit, but it’s been supplanted by the Fitbit Charge 4, which has GPS and a few other features. RELATED: The Best Fitbit Device You Can Buy In 2021 4.

Fitbit Charge 4 face-off explains why it’s the most capable fitness tracker you can get for the price. That’s not as good as the best GPS watches, but suitable for a fitness tracker. The Charge 4 will last up to 7 days, but that number drops to 5 hours when using GPS. It’s also pretty good at measuring sleep, and thanks to its SPO2 sensor, it can warn you if you’re at risk for conditions such as sleep apnea. The Charge 4 was comfortable to wear, and its GPS was accurate when we took it on runs. And, for those who use Spotify, the Charge 4 now has controls for that music service, though you still can’t load music onto the device itself. The Fitbit Charge 4 also has Fitbit Pay, so you can use it as a contactless payment device at participating locations.

Not only does the Fitbit Charge 4 have GPS built-in - a first for Fitbit’s fitness trackers - but it has a new metric, called Active Zone Minutes, that gives you a better indicator of your overall health.

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