I too loved my 735, past tense, but had to send it back twice and eventually got a 920 which seems more robust. Did anyone else have problems with the 735?

My first one just plain quit and the second one I had failed me badly during a 1/2 distance race. Just after the finish, I hit save and the screen went blank and the whole race was lost...

Sorry to hear your problems with the 735. I have had the 735 since it came out, and many races (sprints) later, I couldn't be happier.

I just bought a 735. Have you had any durability issues with it? Seems kinda fragile vs my old 910xt.

I had a HR issue in my last race, where the HR didn't show good data until 2 miles into my ride, but I'm willing to put up with slowness to stabilize if it's relatively accurate once it gets there.

Overall I'm very happy with it, but there have been a couple of issues. I've had 2 times where the device wouldn't connect to my phone and I had to restart the watch to get it to work again. This hasn't happened since an update about a month ago, so maybe it's fixed. I've also had a number of issues charging. The watch says it's charging, but after sitting there for a while the battery drains down to 1%. Again, it's taken a restart of the watch to get it to charge.

My 735xt syncs with my S7 pretty quickly if the phone is within BT range when I save the activity. If the phone isn't connected to the watch when I save it takes a lot longer to sync. If I use the manual sync in the app it syncs within about 30 seconds.

I found it interesting that it will sync with my phone about 50% of the time when I do open turns in the pool.