Incorporating some pretty advanced features, the Green Lion Connect Pro Smart Watch also features a stylish design. The AMOLED screen measures 1.43" diagonally, at 466x466 pixels and 1000 nits brightness, assuring high-contrast imagery. Powering this smart workhorse is a 300mAh battery that provides 7-10 days of working time with 15 days of standby time. Benefit from high-fidelity BT calls, call/social notifications, and music controls via BT 5.3. Fitness features include 100+ sports modes, sleep activity monitoring, blood pressure, and heart rate monitoring. The IP68 waterproof feature and raise-wrist wake screen increase usability. Other features include a remote camera, activity tracking, and find watch. Specification Display: 1.43" AMOLED Resolution: 466x466 Battery Capacity: 300mAh RAM+ROM: 218KB+128MB Watch Case Material: Zinc Alloy Brightness: 1000 nits G-Sensor: SC7A20H Bluetooth Version: BT 5.3 Charging Time: 2.5 Hours Charging Method: Magnetic Pin Charging Working Time: 7-10 Days Standby Time: 15 Days Water Resistance Level: IP68