Cancelled Microsoft Band 3 would have been a nice improvement over the Band 2

The Microsoft Band 3 was cancelled before the fitness tracker hit the market. However, a prototype of the device was recently discovered and it included some useful improvements over the Band 2. Thanks to Electrocardiogram (ECG) sensors, the Microsoft Band 3 would have provided more accurate heart rate readings. The sensor would have also given wearers readings on their blood pressure, stress levels and temperature. The Band 3 would have been able to tell users whether they were in good health, or if there was an underlying problem brewing.

While the Band 2 was water resistant, the Band ...