Amazfit Helio Ring No Smart ring activity tracker Titanium

Battery operated: Yes | Warnings: Do not open the headband - risk of damaging internal components. | Water resistance: 10 ATM | Quality of sleep: Yes | Bluetooth Low Energy (BLE): Yes | Warnings: Avoid contact with water if the product is not waterproof. | Warnings: Store away from sources of high temperature. | Ring size: 12 | Battery capacity: 20.5 mAh | Touchscreen: No | Housing material: Resin, Titanium | Skin temperature sensor: Yes | Bluetooth: Yes | Mobile operating systems supported: iOS 15 | Mobile operating systems supported: Android 13.0 | Blood oxygen sensor: Yes | Mobile operating systems supported: iOS 14 | Mobile operating systems supported: iOS 14 | Form factor: Round | Wireless charging: Yes | Battery life: 4 day(s) | Mobile operating systems supported: Android 8.0 | Mobile operating systems supported: Android 8.0 | Gyroscope: Yes | Heart rate monitor: Yes | Quantity per pack: 1 pc(s) | Device type: Smart ring activity tracker | Mobile operating systems supported: Android 7.0 | Mobile operating systems supported: Android 7.0 | Mobile operating systems supported: Android 7.0 | Mobile operating systems supported: Android 12.0 | Display type: No | Accelerometer: Yes | Thickness: 2.6 mm | Mobile operating systems supported: Android 14.0 | Mobile operating systems supported: iOS 16 | Mobile operating systems supported: Android 10.0 | Mobile operating systems supported: Android 10.0 | Charging time: 1.4 h | Product colour: Titanium | Rechargeable battery: Yes | Mobile operating systems supported: Android 9.0 | Mobile operating systems supported: Android 11.0 | Weight: 3.82 g