The lighting on this watch is very poor.

I turned it up as far as it could go, but still very poor lighting

Also, wearing it at night for its alleged sleep tracking, the face lights up every time I move or roll over, so even adjusting to a low brightness setting, it's still really annoying several times a night.editing and downgrading my initial review.

n’t vibrate strong enough to feel the vibration, which would of been ok if there was an option for sound

You get what you pay for , it is What it is , so t count on the readings being correct they are 100% worthless !