1. Main chip: GR5515 2. Case material: ABS+PC 3. Strap material: TPU + stainless steel buckle 4. Maximum wrist circumference: 256mm 5. Battery capacity: 150mAh 6. Waterproof level: IP67 7. Screen size: 1.14-inch TFT high-definition color screen 135x240 8. Normal use: 7 days 9. Standby battery life: 15 days 10. Watch language: Chinese, English 11. Support accurate blood oxygen, sleep monitoring, blood sugar monitoring, and body temperature monitoring 12. Use conductive powder metallurgy electrodes and pulse time difference method to measure blood oxygen with high precision
