no charger The Fitbit Alta FB406 is a black silicone strap activity fitness tracker designed for indoor and outdoor use. It is compatible with both iOS and Android operating systems and features a mobile app for tracking fitness metrics. This unisex device includes Bluetooth connectivity, an alarm, altimeter, and average speed tracking capabilities. Additionally, it has an accelerometer sensor for accurate activity monitoring during gym workouts, yoga sessions, and running or jogging activities.
eBay