I have the 735, thought it was dying and l came to the following priorities for replacement if I need to (also have a Garmin bike computer)
Garmin 55 £120 - MIPS for just running, lacks multisport, OWS and power meter connections.
Garmin 165 £170 - amoled and has OWS, lacks power meter and training load integration and multisport mode
Garmin 255 ~£200: MIPS screen
Garmin 265 ~ £360: AMOLED, Spotify, NFC
Coros Pace 3 or 4. £200/230 - difference 4 has amoled and music but MP3 not Spotify. Both great batteries (if 4 is off when not looking at it)