Advantage:
· With lithium battery inside, can be used 16 hours continuely after full charged;
· Micro-USB connection;
· Fuctions: a. Oximter
b. Heart beat
c. Watch funtion (opintional)
d. Step counting (opintional)
e. 4.0 Bluetooth (opintional)
f. We have our own Apple store. The user can download
it in the cellphone. and the cellphone will show the result after testing.
