Product Name: OnePlus Smart Band – Black.

Specifications
Brand: OnePlus
Model: W101N
Display type: AMOLED
Size: 2.79 cm (1.1")
Resolution: 126 x 294 pixels
Control: Touch
Sensors and vibration motor: Blood Oxygen Sensor, 3-axis accelerometer and gyroscope, Optical heart rate sensor, Motor
Exercise Modes: Outdoor Run, Indoor Run, Fat Burn Run, Outdoor Walk, Outdoor Cycling, Indoor Cycling, Elliptical Trainer, Rowing Machine, Cricket, Badminton, Pool Swimming, Yoga, Free Training
Sweat and water-resistant: 5ATM and IP68
Bluetooth version: BLE 5.0
Charging interface: Wired OnePlus Band charging dongle, USB Type-A
Battery life: Up to 14 days
Battery capacity: 100mAh
Other features: Message notifications, Incoming call notification, Incoming call rejection, Music playback controls, Stopwatch, Timer, Alarm (vibration), Camera-shutter controls, Find My Phone, Zen Mode synchronization (with select OnePlus phone models), Weather forecast, OTA upgrades, Charge progress display