Garmin 735XT is superb. Doesn’t look too bad on the wrist, almost discreet unlike the Fenix 3. Heart rate monitor on the wrist which is good for general use although chest strap is much improved on an off road bike.
Battery lasts a week easily even when using GPS for at least an hour everyday. GPS can be used in an eco mode to conserve battery or is completely off when using the device just as a watch.
GPS fix pretty much instantly.
Good smart notifications, text msgs, phone calls etc so phone can always be on silent and just have watch on vibrate which is nice. Good general activity / sleep tracker.
Also has triathlon setting. Useful as I’m stupidly doing an Ironman next year after a year with minimal training due to injury. Battery life when using full GPS full time is roughly 14 hours, I’m aiming for sub 16 hr on the Ironman. Doh.