with the right tools they already are
That's the point, it is so you don't have to require any special tools that you have to purchase or rent, or having to deal with glue and all that crap.
I prefer compact and waterproof design over an easily replaceable battery
You think because it's replaceable it can't be compact and waterproof? Ever used a watch?
A more current example before you complain that no one uses watches now and only smartwatches is an AirTag from ~~cr~~Apple, they are waterproof, compact, and the battery is replaceable without any tools.
Also never copy and paste a command line you see online, it can hide nasty things.