i have the wiggle ‘exclusive’ ambit3 vertical.
it’s very good, logs well (running, kayaking etc). Followed the route on it in dense mist off Great Gable. Pretty good, but big!
The app on iphones was good, the one on android was less good until a recent release. Uploads pretty quickly to Strava etc. i use my wahoo hr belt with it, rather than the suunto one (just because i prefer the strap…). Black and white, and no touch screen, but not a problem; i’d prefer something that worked over flaky bells and whistles (hence the wahoo!). But buy a sapphire glass for it off Amazon. It is so big it catches on everything.
Don’t pay full price; i paid £200 i think. Even cheaper now, but no HR monitor.