Brand - Mibro, Model - Mibro A1, Watch Size - 45mm, Cellular Network - No, Dial Shape - Round, Dial Type - Digital, Display Size - 1.28 Inch, Display Type - HD Display, Display Resolution - 360 x 360, Camera - No, Loudspeaker - No, Microphone - No, Sport Modes - Indoor Running, Outdoor Running, Walking, Indoor Cycling, Outdoor Cycling, Swimming Pool, Climb Mountains, Roller Skating, Elliptical Machine, Free Exercise, Yoga, Sit-ups, Push-ups, Skipping Rope, Aerobics, Badminton, Tennis, Basketball, Football, Table Tennis, Waterproof - Yes, Waterproof Rating/Level - 5ATM, Water Resistant - Yes, Dustproof - Yes, Blood Pressure - No, Blood Oxygen - Yes, Heart Rate - Yes, Sensors - PPG Heart Rate, Blood Oxygen, ACC Sensor, Electrical Heart Sensor (ECG App) - No, Optical Heart Sensor - No, Button - 2, Card slot - No, Wi-Fi - No, Bluetooth - Yes, Bluetooth Version - Bluetooth 5.0, NFC - None, GPS - No, Connectivity - Bluetooth, Battery - 270mAh, Charging Method/Port - Magnetic Charging, Body Materials - Metal Body + Silicone Strap, Body Color - Tarnish Black, Band Color - Black, OS & Version - Android & iOS, Weight - 42gm, Others - Standby: Daily mode 10 Days, Basic Mode 45+ Days. Body Dimension: 45mm, Thickness: 9.8mm. Band Dimension: Width: 22mm, Unfolded Length: 248mm. Supported OS Details: Support Android 5.0 and above, iOS 10.0 and above (Functions will vary with diffrent watches, mobile phones and countries), Features - Light and slim design, Intelligent health monitoring, 10-day battery life, 20 sports modes, 5ATM waterproof, customized watch face, Lightweight colorful screen, Your intimate sports assistant. Reminder Message - WeChat, QQ, SMS, Email, Skype, WhatsApp etc. Other Functions - Remote Control Phone Camera, Music Control, Find the phone, Call reminder, Call rejection, Do not distrub mode, Alarm clock, Weather, Timer, Stopwatch. Customize your own watch face that suits your personality., Warranty - 6 Month (Warranty must be claimed with original box & all accessories), Country of Origin - China, Made in/ Assemble - China