It monitors health indicators: it counts your heart rate, steps, activity, and measures your sleep and recovery after exercise. But its main feature is that there is no subscription fee for the app. A Whoop subscription in the US costs between $240 and $360 per year. The Polar Loop costs $200 once, and replacement straps cost another $30 each. But there are no subscription fees (at least for now)

The LED globe with OLED screen creates a 360° rotation effect, combining dynamic visual effects with touch control