Parameter： Screen size resolution:2.08nch 240*296-TFT Waterproof level:IP67 APP:WearFit pro System requirements:android5.0+ / ios10.0+ The main chip:HS6621-PG memory:128MB Bluetooth phone:AB5376A2 Bluetooth version:5.2 Battery capacity:300mah Loudspeaker: YES The motor:YES The encoder:YES Function ...