Hi @BigG55 it depends on your needs and how much you are into fitness. Pro versions really more suited to those who do a lot of activity outdoors,though more powerful Battery will appeal to some anyway. Need to consider if Bluetooth is fine for you (need access to phone) or if you really need a standalone LTE one (need to pay small monthly fee). They use esims but not all providers support them . Some information here on the Watch 5 ones https://smartwatchchart.com/galaxy-watch-5-bluetooth-vs-lte-which-is-right-for-you/#google_vignette
The Galaxy Watch 5 series may be the best bet with the better Battery life and a further year of software support (up to 2026). However the watch 4 will be a bit cheaper and has many of the same features.
A guide in his article https://www.trustedreviews.com/best/best-samsung-galaxy Watches
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 5.0,Android 13 .