LIGE 0175 Bluetooth Step Perseverance Detection Smart Watch, Style: Steel Belt (Black) Features 1. Exquisite hard case with colorful strap 2. 3D curved surface made by tempered glass processing, with beveled cutting sculpture, interpreting the aesthetics of craftsmanship, material, design and craftsmanship, all exquisite exquisite touch more smooth, display details vivid 3. 7 days long battery life, standby time up to 20 days, 144 hours of sports scenes, 10 hours of Bluetooth calls 4. High-fidelity waterproof speakers, Bluetooth hands-free calls, showing high-definition original sound 5. Ultra-retina display, full-round screen, 360x360 pixels HD resolution 6. Wide viewing angle of 178 degrees 7. Support multiple sports modes 8. IP67 level waterproof, support swimming, let you do whatever you want 9. Wearing the watch to sports, you can easily control the music of your mobile phone to take photos remotely and keep every wonderful moment 10. Imported optical heart rate, combined with intelligent heart rate algorithm can accurately monitor both resting heart rate and exercise heart rate, through the scientific quantification of the big data can see the daily heart rate curve, to protect your physical and mental health 11. Professional sports data analysis makes you know more about exercise 12. Built-in intelligent functions, smart butler on the wrist Specifications 1. Function: night light, chronograph, countdown timer 2. Water resistance: 30M 3. Display type: hands 4. Movement: quartz 5. Clasp style: single folding clasp 6. Clasp material: stainless steel 7. Strap material: stainless steel 8. Mirror material: plexiglass 9. Case material: alloy 10. Power supply: USB charging built-in lithium battery 11. Battery capacity: 200mah 12. Dial diameter: 46mm 13. Thickness: 17 mm