Weofly Curve Smartwatch - Multifunction Watch Bluetooth 5.3 Black

Warnings: Do not leave the device in high temperature areas. | Warnings: Be careful when touching the battery as it can be hot. | Warnings: The product contains a lithium battery that is hazardous to the environment. Do not dispose of it in the normal rubbish bin. | Heart rate measuring: Automatic | Calories burned: Yes | Closure type: Single prong strap buckle | Heart rate contact sensors: Yes | Quality of sleep: Yes | Material: Zinc alloy | Suggested gender: Any gender | Band colour: Black | Pedometer: No | USB port: Yes | Material: PC | Mobile operating systems supported: Android | Bluetooth: Yes | Shape: Circle | Runtime: 5–7 days | Alarm clock: Yes | Built-in battery: Yes | Mobile operating systems supported: Android 5.0 | Mobile operating systems supported: Android 5.0 | Market positioning: Smartwatch | Mobile operating systems supported: Android 6.0 | Mobile operating systems supported: Android 6.0 | Blood pressure monitor: Yes | Display technology: AMOLED | Mobile operating systems supported: iOS 9.0 | Mobile operating systems supported: iOS 9.0 | Mobile operating systems supported: iOS 9.0 | Mobile operating systems supported: iOS 9.0 | Mobile operating systems supported: Android 5.0 or higher | Waterproof: IP68 | 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 7.0 | Mobile operating systems supported: Android 9.0 | Display diagonal: 3.63 cm (1.43") | FM radio: No | Battery capacity: 300 mAh | Monitoring health status: Yes | Mobile operating systems supported: Android 8.0 | Mobile operating systems supported: Android 8.0 | Mobile operating systems supported: Android 8.0 | Near Field Communication (NFC): No | Bluetooth version: 5.3 | Heart rate monitor: No | Wi-Fi: No | Blood oxygen sensor: Yes