Waterproof: Can be used for swimming in the sea or in a pool.
Heat Rate Monitor: Monitors heartbeats per minute.
Pedometer: Calculates the total number of steps you have taken in a day.
Without Screen: They are aimed at those who want continuous tracking without the weight or cost of a smartwatch. They sync via Bluetooth to an app with insights and AI coaching, and they usually have longer battery life than devices with a screen.
Calorie Tracker: Calculates how many calories you have burned in a day.
GPS: Technology that can detect geographic location and thus allow recording of the route (e.g. during running).
Application Notifications: It has the ability to transfer notifications from mobile phone applications (e.g. SMS, email, social media).
OLED Display: Activity Trackers with LED technology screens for visibility even under sunlight
