Product size: 45 x 13.7mm Case material: plastic Watch strap specification: 16mm silicone strap (removable and replaceable) Product weight: 41g (including silicone strap) Waterproof grade: IP67 Range: 5-7 days (depending on usage scenario) Charging time: 2H APP Name: Da Fit Watch firmware languages in Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Italy, Portugal APP language ar - Arabic, bg - Bulgarian, cs - Czech Czech, da - Danish, de - German, es - Spanish, fi - Finnish, fr - French, hi - Hindi, hr - Croatian, in - Indonesian, it - Italian Italian, ja - Japanese, ko - Korean, nb - Norwegian, nl - Dutch, pl - Polish, ps - Pashtun o, Pt - Portugal, ro - Romania, ru - Russian, sv - Sweden, th - Thailand, tr - Trkiye, uk - Ukraine, vi - Vietnam Battery: 300mAh Dial style: circular Waterproof level: Domestic waterproof Operation mode: touchandbutton Charging method: magnetic suction charging Wrist strap material: silicone Screen type: IPS Battery life: 7-14 days Features: Waterproof, photography, step counting, heart rate monitoring, blood pressure measurement, Bluetooth call, intelligent reminder, sleep monitoring, blood oxygen detection External Flash: 128Mb Watch strap style: sporty Case material: aluminum alloy