This is due to the small size of wearable tech which lives little room for big batters like smartphones.
It is perhaps this reason that wearables like smartwatch have not taken the way they should.
However, now scientists seem to have found the answer for battery in wearables that could revolutionise the tech.
These solar cells could power wearable electronics like fitness trackers and smart glasses.
The researchers made the ultra-thin solar cells from the semiconductor gallium arsenide.
Likewise, bending tests disclosed that the cells are able to bend around radius as small as 1.4 millimetres.
Until then you have to make do with your 5 hour powered smartwatch or health band.
source: www.techworm.net