Comment Garmin 920XT works great, also day to day (Score 1) 169
The 920XT is my fourth GPS watch and best by a wide margin. No battery issue, even for 12 hour bike events. It uploads the data without me having to think about it. Great workout features once you get the garmin connect site figured out. I use the heart rate features a lot, but that's me. Nice smartwatch features. It's a little big for small wristed people, but otherwise, no issues at all in over a year. I have run over 30 marathons. I have friends that swear by the new apple watch and the Forerunner 235 does wrist heart rate if you are lighter skinned, both are smaller.
I use my phone for audio during training, but mostly leave it in the car during races.