Smart bracelet

The latest changes in the fourth version of the M4 bracelet is in the screen where the 0.95-inch OLED screen comes with a resolution of 120 x 240 and is larger than the previous generation by
Almost 40%
With the increased battery size to 135 MAH
In addition to several features, the most important of which are:

Clock, date, days of the week, receiving notifications from the mobile, bluetooth, tracking the cell phone in case of loss, step counter, calculating the distance, calculating the calorie burned through an accurate laser sensor at the bottom of the bracelet, measuring the heart rate, measuring blood pressure, charging the USB socket, Opening and closing the mobile camera, timer and alarm