YESIDO IO22 Bluetooth Call Smart Watch Health Monitor IP67 Waterproof Sports Bracelet •Smart chip upgrade improves health detection accuracy: Through high-precision sensors,the algorithm can match various types of people. Stronger adaptability and more accurate measurement •Real-time message notification: Supports real-time information notifications,so you don't miss any message. Uses soft anti-static silicone strap,which is more comfortable to wear •Accurate health detection upgrades high-precision sensors: Upgraded high-precision sensors,detection accuracy. Support heart rate detection,blood oxygen and other functions. Accurately track data changes •123+ sports mode sports track: Support up to 123+ sports modes •BT voice call The watch supports BT connection to smartphones. Not only can you check and reject calls on the watch,but it also has a built-in microphone and speaker,so you can easily talk without picking up your phone Specifications: •Model: IO22 •Main Control: AD7012 •Heart Rate: LC09 •Storage: 640KB+64Mb •Use: About 5 Deys •Material PC+ABS+Silicone Strap •Charging Time: About 2.5 Hours •Battery capacity: 230mAh •Long Duration: About 12 Days •Screen: TFT 1.83 Inch 240*284 •Waterproof: IP67 •BT: 5.2 •APP: Da Fit Package included: •1 x Smart Watch •1 x Charger •1 x Blue Strap •1 x Black Strap •1 x English User Manual