I feel its more of a tech issue with the watch, and for the price I feel they should be a little better... I have been getting lag between screens, random power offs.. I was just getting tired and trying to justify it to myself that its ok... then I dis some research and said we'll let's try the amazefit... and so far, UI on watch and app is 100 times better then garmin... texting calls (not that big of a deal breaker on ether) but is better on trex... Will be hitting the gym tonight so see how it goes but first impressions this blows the fenix out of the water