Hard to read anything in phone screen of Garmin vivo move 3

Purchased this Garmin vivo move 3 last week and when turned on nothing is visible in the screen.Then understood,the hello message is coming but is hard enough to read because of the brightness.the brightness is set to 7 and still not able to read it properly in lights.is this watch like this or i have got a defective peice?Please help.Because of this,I am not able to even set the time in the watch.Nothing is readable in the display because of low brightness