B20 smartwatch with 8 sports modes blood oxygen pulse notifications iOS and Android

B20 sports smartwatch. 1.4-inch IPS full touch screen, with 240x240 px resolution. Submersible. Functions: • Synchronization and notification of phone notifications, such as email, WhatsApp, Facebook, Twitter, etc and SMS. Compatible with Android and iOS devices through free application • Call notification. • Control of MP3 files from your mobile phone. • Vibration alert function. • Remote control of the Smartphone camera. • Alarm. • Weather information on screen (via app). Health functions: • Heart monitor, with heart rate log. • Measurement of blood pressure. • Measurement of oxygen in blood. • Pedometer with step counter, activity time, calories burned, distance traveled and speed. • Multi-sport mode: - Walking: time, steps, distance, calories and heart rate. - Running: time, steps, distance, calories and heart rate. - Swimming: time, calories and heart rate. - Cycling: time, calories and heart rate. - Soccer: time, steps, calories and heart rate. - Basketball: time, steps, calories and heart rate. - Jump rope: time, calories and heart rate. - Badminton: time, steps, calories and heart rate. • Activity reminder (sedentary warning) with vibration alarm. • Sleep monitor, with time and quality indicator (deep and light sleep). Compatible with interchangeable wristbands, with Quick-Easy system, 20mm. Chip: HS6620D 1.4 inch full touch screen Resolution 240x240 px Compatibility: Android 4.3 and IOS 8.0 or higher Battery: 180mAh, up to 4 days of use and 7 days of standby Submersible, IP 67 PVC Metal Alloy calories and heart rate. - Swimming: time, calories and heart rate. - Cycling: time, calories and heart rate. - Soccer: time, steps, calories and heart rate. - Basketball: time, steps, calories and heart rate. - Jump rope: time, calories and heart rate. - Badminton: time, steps, calories and heart rate. • Activity reminder (sedentary warning) with vibration alarm. • Sleep monitor, with time and quality indicator (deep and light sleep). Compatible with interchangeable wristbands, with Quick-Easy system, 20mm. Chip: HS6620D 1.4 inch full touch screen Resolution 240x240 px Compatibility: Android 4.3 and IOS 8.0 or higher Battery: 180mAh, up to 4 days of use and 7 days of standby Submersible, IP 67 PVC Metal Alloy calories and heart rate. - Swimming: time, calories and heart rate. - Cycling: time, calories and heart rate. - Soccer: time, steps, calories and heart rate. - Basketball: time, steps, calories and heart rate. - Jump rope: time, calories and heart rate. - Badminton: time, steps, calories and heart rate. • Activity reminder (sedentary warning) with vibration alarm. • Sleep monitor, with time and quality indicator (deep and light sleep). Compatible with interchangeable wristbands, with Quick-Easy system, 20mm. Chip: HS6620D 1.4 inch full touch screen Resolution 240x240 px Compatibility: Android 4.3 and IOS 8.0 or higher Battery: 180mAh, up to 4 days of use and 7 days of standby Submersible, IP 67 PVC Metal Alloy time, calories and heart rate. - Soccer: time, steps, calories and heart rate. - Basketball: time, steps, calories and heart rate. - Jump rope: time, calories and heart rate. - Badminton: time, steps, calories and heart rate. • Activity reminder (sedentary warning) with vibration alarm. • Sleep monitor, with time and quality indicator (deep and light sleep). Compatible with interchangeable wristbands, with Quick-Easy system, 20mm. Chip: HS6620D 1.4 inch full touch screen Resolution 240x240 px Compatibility: Android 4.3 and IOS 8.0 or higher Battery: 180mAh, up to 4 days of use and 7 days of standby Submersible, IP 67 PVC Metal Alloy time, calories and heart rate. - Soccer: time, steps, calories and heart rate. - Basketball: time, steps, calories and heart rate. - Jump rope: time, calories and heart rate. - Badminton: time, steps, calories and heart rate. • Activity reminder (sedentary warning) with vibration alarm. • Sleep monitor, with time and quality indicator (deep and light sleep). Compatible with interchangeable wristbands, with Quick-Easy system, 20mm. Chip: HS6620D 1.4 inch full touch screen Resolution 240x240 px Compatibility: Android 4.3 and IOS 8.0 or higher Battery: 180mAh, up to 4 days of use and 7 days of standby Submersible, IP 67 PVC Metal Alloy time, calories and heart rate. - Badminton: time, steps, calories and heart rate. • Activity reminder (sedentary warning) with vibration alarm. • Sleep monitor, with time and quality indicator (deep and light sleep). Compatible with interchangeable wristbands, with Quick-Easy system, 20mm. Chip: HS6620D 1.4 inch full touch screen Resolution 240x240 px Compatibility: Android 4.3 and IOS 8.0 or higher Battery: 180mAh, up to 4 days of use and 7 days of standby Submersible, IP 67 PVC Metal Alloy time, calories and heart rate. - Badminton: time, steps, calories and heart rate. • Activity reminder (sedentary warning) with vibration alarm. • Sleep monitor, with time and quality indicator (deep and light sleep). Compatible with interchangeable wristbands, with Quick-Easy system, 20mm. Chip: HS6620D 1.4 inch full touch screen Resolution 240x240 px Compatibility: Android 4.3 and IOS 8.0 or higher Battery: 180mAh, up to 4 days of use and 7 days of standby Submersible, IP 67 PVC Metal Alloy with Quick-Easy system, 20mm. Chip: HS6620D 1.4 inch full touch screen Resolution 240x240 px Compatibility: Android 4.3 and IOS 8.0 or higher Battery: 180mAh, up to 4 days of use and 7 days of standby Submersible, IP 67 PVC Metal Alloy with Quick-Easy system, 20mm. Chip: HS6620D 1.4 inch full touch screen Resolution 240x240 px Compatibility: Android 4.3 and IOS 8.0 or higher Battery: 180mAh, up to 4 days of use and 7 days of standby Submersible, IP 67 PVC Metal Alloy