Is this normal? FENIX 5 plus

Ive hadhMythe watch about a week and a half and have charged it 2 times already, Battery is going at a rate of .9% per hour according to battery widget

Charged it 2 days ago and it's already at 20%
it was at 21% 2 hours ago and I left the watch on my table and in 2 hours it went down to 20%

I don't leave Bluetooth on, only to sync

I use 24hr Heart rate tracking

2 GPS activities in the last 3 days(30mins each)

Some Bluetooth music 1-2hrs max
Backlight only comes on for 8 seconds when I press the light button(5% % no gestures, no button pressed)
Ive don't about 2-3 1hr cardio/strength (no GPS activities)
Watch face has time(no seconds), calories burnt, date, alarm,weather and world clock
I'm wondering is this normal or should I be getting worried and requesting a return??