In classic single track advice of recommend what you have ….
I looked at g4 and g5, in fact was going to buy a g5.
Bit leftfield but I finally bought a Samsung Xcover 4. Very very impressed with it. Normally I like vanilla android phones like the Motorola’s but this new version of touchwiz that Samsung overlays is non intrusive and it all works seamlessly.
Strava, maps, calls, internet all good. Plus you can use it with gloves on and it’s waterproof and drop proof (untested as yet…..). A good phone for a mtb’r.