S1 Smartband is a Bluetooth Smart WristBand plus a Health Monitoring band. The device has a 0.96″ OLED touch display, which is bright enough for good visibility in daylight too. The display has a resolution of 64 x 128. The smartband has low energy Bluetooth V4.0. It has a 90mAh battery with a 10 day backup.
The highlight of S1 is the extremely fast Heart Rate monitoring sensor . Its very power efficient and measures accurate live heart rate for you which you don’t have to wait. The Smartband will show you notifications from Whatsapp and Messenger. Moreover if you are on a bike and a call comes in , just look at your S1 it will show the caller ID with phone number, also you get SMS notifications. The smartband is complete water proof also. It comes in 5 colors Black, Blue, Orange, Sky Blue and Purple.
There are numerous Health related features in S1 smartband like heart-rate monitor, step counter and calories burned. Additionally you can track your sleep all with the help of a custom App both on Android and iOS. Further you have a sedentary reminder and you also get the signature Gesture to wakeup the display. The band of S1 smartband is made up silicon material. The smartband is IP67 rated waterproof so you can dive into the swimming pool without harming your device.
S1 is a complete smartband which is better than Mi Band 2 as it can display caller ID whereas the Xiaomi Mi Band 2 only displays phone number, plus it has touch OLED panel while Mi Band 2 has a physical button for navigation. At a price point of $19 which you can order here it gives tough competition to the best smartbands out there.