Features: Fitness tracking-, various sport modes, make you like sport. Heart rate, blood oxygen, sleeping- monitoring, more accurate, low consumption. Multiple wristband color for you to choose, long time- standby, super convenient. Instant- information/call incoming notification, will not let you miss important information. Multifunctional, come with step counting, smart reminder, remote photography, sleeping- analysis, heart rate blood oxygen monitoring, bluetooth-compatible phone call and more. Specifications: Material: Zinc-Alloy Screen Size: 0.96in Battery: 90mA Interface: USB2.0 Wireless Distance: 5-10m Communication Function: Support Function: Photo Take, Step Count, Heart Rate/Blood Oxygen Monitoring, Bluetooth-compatible Phone Call, Intelligent Reminder, Sleeping- Analysis Size: Approx. 2.2x1.3cm/0.87x0.51in Color: 1/2/3/4/5/6 Package Includes: 1x Smart Band note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.