The Fitbit Charge 3 is a band based fitness tracker with a 0.8 inch monochrome touchscreen OLED display, real-time heart rate monitor, step counting, sleep tracking and calories burned.

It produces wireless-enabled wearable technology, physical fitness monitors and activity trackers such as smartwatches, pedometers and monitors for heart rate, quality of sleep and stairs climbed as well as related software. The company was acquired by Google in January 2021. Fitbit LLC.

The Fitbit Charge 3 was released in October 2018. It has a heart rate sensor as well as an oxygen saturation (SPO2) sensor - however, it shipped non-functional but Fitbit eventually enabled the feature. Sleep tracking has been improved from the Charge 2.

The Fitbit Charge 5 is an affordable fitness tracker designed to provide deeper insights into your exercise, sleep, and wellness patterns.

But for all its smartwatch aspirations, the Charge 3 is still very much just a fitness tracker, especially in its current state. At launch, it can display notifications from any app on Android or iOS (Windows Phone support is coming soon, seriously), but there's no way to interact with them at all.

Those smartwatches have the advantage of running Fitbit OS, which includes a library of many third-party-developed watch faces. The Charge 3 isn't a smartwatch, so its version of Fitbit's software isn't as robust as what we see on the Ionic and the Versa.

Easy to use, comfortable to wear, and jam-packed with health-tracking features, the Fitbit Charge 5 is our favorite fitness tracker. It's small enough to satisfy those who prefer the size of a fitness tracker over a smartwatch. Still, it has a screen large enough to comfortably swipe through your stats on the device.

Whilst in the past Fitbit's focus was primarily on fitness tracking, the brand now emphasizes four major pillars of its strategy: sleep, activity, nutrition and mindfulness. Fitbit attempts to reach a mainstream audience rather than professional athletes.

About this item

The Fitbit uses a 3-axis accelerometer that can track the number of steps taken, in addition to a few other features such as distance traveled, calories burned, and number of floors climbed. An accelerometer is an electromechanical device that measures acceleration forces.

Our top pick is the Fitbit Sense 2; it's the perfect combination of being both an effective smartwatch and a reliable fitness tracker, featuring multi-day battery life, a suite of health-monitoring tools, and extensive activity tracking. For a budget option, we recommend the Fitbit Inspire 3.

Using PurePulse technology, Charge 3 tracks your current and resting heart rate all day. When you exercise, see your heart rate zone right on your wrist. Track your overall cardio fitness in the Fitbit app and see how you compare to others.

But price is a big deciding factor in why the Fitbit Versa 3 is one of the best Fitbits you can buy. It costs almost half as much as some of Fitbit's premium offerings, yet offers a quality fitness tracker and smartwatch experience.

Please note you cannot make calls directly from your watch, however, if paired to an iPhone or Android (8.0+) phone, Versa 3 lets you accept or reject incoming phone calls. If your phone is running an older version of the Android OS, you can reject, but not accept, calls on your watch.