Features 1. AMOLED display, remains clear even under strong sunlight 2. Large battery capacity, low consumption chip, up to 20-day battery life (conducted tests under the supervision of the product management team), lets you enjoy music or do sports freely without worrying about power 3. Enhanced with an additional stainless steel strap, it affords users the versatility of two distinct stylistic options Product Parameters Series Name: Venture Series Model: JR-FV1 BT version: BT5.3 Memory: 128Mb Water resistance: 1 ATM BT range: 10m Screen material: AMOLED Screen size: 1.43 Screen resolution: 466*466 Touch control mode: full screen touch control Charging time: about 2h Typical usage time: about 20 days Standby time (connected): about 30-40 days Battery capacity: 300mAh Charging input: 5V⎓1A Charging mode: magnetic charging dock Working frequency: 2402MHz-2480MHz Max output power:3.55dBm Band size: 200mm*22mm Applicable wrist size: 102mm*182mm Overall size: 47.5*11.3mm Body material: zinc alloy+ABS Weight: about 63g