SpecificationsModel: DT98 smartwatchCompatible System: IOS / AndroidChip: MTK 2502CBluetooth: 4.2Waterproof: IP68Craft: Zinc alloy + PC plastic productWeight: 25.6gScreen size: 1.3 round screenScreen resolution: 240 * 240Battery capacity: 300mAhLifespan: 5 daysHighlights* 1.3 inch 240 * 240 resolution, full HD screen* Integrated into a dozen cool dials* Bluetooth call, sync with your phone* Incorporates PPG + HRV measurement technology, helps monitor and assess heart health* IP68 waterproof, support hand washing, raining to meet daily needs