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Try replacing your wrist computer strap with one of these. Great for watch style smaller computers, completely adjustable non-bungie solution.l
https://www.amazon.com/gp/product/B01FSWUTEG/
It's not so much the straps as the actual computer puck/square/casement and sometimes the buckle digs in a bit but mostly the computer and casing itself is wider than the flat of our wrist. Sounds odd but it hurts. I just accept the discomfort especially since I'm quite often wearing two at a time.
I don't have the best eyesight in the world, and didn't want to spend ages staring at the computer to make or tale of it, so in the end I went for a AI console style computer (Suunto Cobra) and am glad I did.
To me it's the best way to get a nice, large clear display and robust computer without having a brick on my wrist. I can't loose or forget it (unless I forget my regulator, which you tend to notice fairly quickly during a dive...) and also get air integration - which was something I specifically wanted - without the flakiness and battery issues of the transmitter.
Sadly, there's very little choice when it comes to console computers these days