Xiaomi Smart Band 9 Digital Wristband activity tracker 4.11 cm (1.62") Black

<br />Xiaomi Smart Band 9. Display type: Digital, Display diagonal: 4.11 cm (1.62"), Display resolution: 192 x 490 pixels. Device type: Wristband activity tracker, Form factor: Oval, Product colour: Black. Heart rate sensor type: Optical. Battery life: 21 day(s), Battery capacity: 233 mAh, Charging time: 1 h. Weight: 15.8 g, Width: 21.6 mm, Depth: 46.5 mm