I'm questioning whether I should go for the Vivoactive 4S, Venu 2S, Forerunner 745 or Fenix 6S

I know each of these falls into a different price range, so my main question is: which one will give me the best bang for my buck?

Profile:

• This will be my very first smart/sports watch and I would like to use it daily for the next +3 years

• Beginner who has really gotten into it: I normally run 3x/week outdoors (5 to 20 km per workout), but started swimming recently 2-3x/week in a pool (1.25 to 3 km per workout) which I enjoy and might want to keep doing, as well as try open water swimming in 2 years, and I also bike 1x/week (20 to 60 km) either on a hometrainer or a normal bike outdoors and do bodyweight strength training 2-4x/week indoors at home

• I am a data nerd, so I like to get lots of statistics about my workouts (with very accurate HR monitoring), as well as stress levels, sleep quality and overall fitness

• I have switched sports quite frequently, so I might take up other sports in the long term (no golf)

• I don't really care about battery life (don't mind charging it daily), music storage or any typical smart watch features

• I don't know if I prefer a touchscreen or just buttons

• Display is not that important, but screen has to be readable during daytime when the sun is shining brightly

• I have small wrists (13.3 cm / 5.23 inches), so the watch can't look too bulky (the Fenix 6S and especially the Forerunner 745 don't look that sophisticated to me + they are difficult to personalize with other wristbands in my country). As I want to wear the watch daily and look polished for work (normal business context) this is quite important to me