Even as a bigger guy it fits well, connects easily and works as it should. I however haven't used any other brands but would totally recommend the garmin as I personally have no complaints.

I have been wearing this garmin heart rate monitor when I do interval sprints. Not only is is extremely durable but I feel like the accuracy is great. I’ve compared it to the treadmill hand sensors and they’re usually perfectly synched. It’s super comfortable and withstands lots of sweat. The battery life on it is great as well I feel like I charge it once maybe every 3/4 uses and I usually have it on anywhere from 1-2 hours at a time. It even held up on a hike outside in the summer in northern Arizona where it was hot and I was heavily sweating.