Overview
The Fitbit Charge 4 (released 2020) and Charge 3 (released 2019) share nearly identical designs, dimensions, and interchangeable bands, including the Small Navy Sport Band, allowing for direct accessory compatibility. The primary upgrade in the Charge 4 is built-in GPS for independent tracking, along with Spotify control and Active Zone Minutes. Both are water-resistant up to 50 meters and feature similar, largely monochrome displays.
Technical Features
- Band colour: Navy
- Band material: Silicon
- Band size: Small: Fits wrist 140mm - 180mm in circumference
- Compatibility: Charge-4 & Charge-3
- Rashi part code: FB168SBNVS