* Smart ring with elegant design XO-RS01.
* Made of durable titanium alloy and epoxy resin.
* Bluetooth connection.
* Tracks sleep duration and quality.
* Detailed daily activity information.
* 24-hour heart rate tracking.
* Magnetic charging.
* Bluetooth version: V5.1.
* Battery capacity: 18 mAh.
* Charging time: about 1 hour.
* Working time: about 8-10 days.
* Water resistance 5ATM for daily use.
* Storage space: 8 M.
* Compatible with Android 5.0 and iOS 10.0 and above.
* Weight: 2.5 g.
* Size: 10.
* Warranty: 12 months.