Model: JR-FT5 BT version: BLE5.3 + BT3.0 BT chip: JL7012/F6 Memory: 64MB Waterproof rating: IP68 BT range: about 10m Screen material: TFT Screen size: 1.83” Screen resolution: 240 x 286 Touch control mode: capacitive touch control Battery capacity: 300mAh Charging time: about 2.5h Standby time (connected): about 15 days Typical usage time: about 7-10 days Charging mode: magnetic charging Charging input: 5V 500mA Overall size: 36.5 x 44.7 x 11.5mm Band material: silicone Band size: 219mm x 20mm Applicable wrist size: 50mm-220mm Body material: top shell: zinc alloy; base shell: PC+ABS Weight: about 50g