Parameters: MCU:RTL8763EW G-SENSOR:STK8321 Heart rate:sensor LC11S Touch chip:Hynitron 816D Touch screen:Full screen touch Screen size:1.32 inch Screen material:TFT Display resolution:360*360 more→Touch screen technology:G+F Flash:RAM:64kB+ROM:521kB+Flash:128M Bluetooth version:BLE5.2 Trumpet AAC original factory(5 magnetic) Microphone:6027 High sensitivity microphone PCB:6-layer board Battery /charging method Battery capacity:290mAh Charging time:2h Physical button: 2 buttons, Stainless steel vacuum plating process. Waterproof level:IP67 (Not fit for bathing / hot water / swimming.) This is the latest smart watch in 2023, this is a high-definition screen AMOLED smart