I do a fair bit of running.
Usually just carry a phone on a case tucked in to my shorts for Strava and wear a standard digital watch for the time.
This works well, but no good if you want to check your pace whilst moving.
I started looking for a decent GPS watch to use for working on my pace whilst training for a marathon next year. Was very tempted by the likes of the Fenix and other £250+ watches, but when I thought about it realistically all I really wanted was time, pace and distance as I couldn’t ever see myself swimming with it, caring about heart rate and if riding then I always prefer using a phone as it is useful to have a map along with GPS.
I thought I’d buy a cheap £45 Garmin Forerunner from Maplin to use for a few months and see if I felt like I was missing any features, if I was then I’d sell the cheapo and get a Fenix.
3 months later and I’ve not felt the need for anything more than the cheapo Forerunner, and although it is useful to know pace, I actually just prefer to just run by feel with just a watch and phone on long ones.
So my advice is buy a cheapo, if you feel it is lacking in features then sell at a £15 loss and upgrade. That way you won’t risk spender fortune on something you don’t use.