Connected watch - Universal - Smartwatch Heart rate Sleep Fitness Detection Call SMS Alert Smartwatch Pressure monitoring Bluetooth bracelet Smartwatch | Smartwatch (Black) Highlights Universal Smartwatch Heart Rate Sleep Fitness Detection Call SMS Alert Smartwatch Pressure Monitoring Bluetooth Bracelet Smartwatch | Smartwatch (Black) Smart Watch Heart Rate Sleep Fitness Detectors Calls Calls SMS Reminder SmartWatch Pressure Monitor Bluetooth Smart Watch Bracelet | Smart Watches (Black) Features: 1. Long-lasting battery life with large capacity battery to reach 15 days long battery life 2. Walking, running, cycling, basketball, badminton, football, skipping rope, swimming. Eight sports modes, start training at any time. 3.24 hours heart rate monitoring to quickly measure your heart rate and understand your physical condition at any time 4. In-depth analysis of sleep conditions at different night sleep stages to help you maintain good sleep habits and to sleep better 5. Follow the rhythm of the music, enjoy the hearing, if you want to listen to the song, you can control the phone to play and pause, switch songs, save time and effort. Parameters: Main frequency: 40MHz Architecture: RAM Core number: single core Main board memory: 160kb RAM Falsh: 32MB Auxiliary chip: G sensor Charging mode: magnetic wire Waterproof grade: IP67 Bluetooth: Bluetooth 4.2 Ble External screen (screen) :: Capacitive Charging time: about 2h Standby time: 7-15 days Battery: 180mAh capacity Shell material: zinc alloy Strap material: Two-color liquid silicone strap black color