Wtf is the difference?! 🤔😩

So, I’m trying to get my boyfriend a watch and have no idea what the difference is between these 3 options.

I thought maybe tweeting it and hopefully getting an answer but my boyfriend has my notifications on, so whenever I like or tweet something he gets a notification about it 🤦🏽‍♀️😅.

Soooo if anyone knows please help!!

Also, if anyone has tried, gifted or know anything about LIV Watches. Please let me know. Orrrr any good affordable watches for guys. He’s also v into watches, maybe not picky but... you know