I've always thought it ludicrous that a smartwatch (like the Apple watch) should have to be charged daily - makes it pretty much useless to me, especially if it can't even tell the time! I realise that the latest Apple watches last longer but I still find them overengineered and ridiculous.

Since nobody else seems to have mentioned it, I'll mention that I've been delighted to have an AmazFit Bip (with a 176x176 colour e-ink transflective screen) on my wrist for almost 4 years now (I previously had a Pebble) and it still goes at least 3 weeks between charges (previously more like 4 weeks) despite being connected to Bluetooth, taking my pulse every few minutes, and selectively relaying notifications to my wrist.

See https://m.gsmarena.com/amazfit_bip_review_another_shot_at_th... for details but many models have been released in the years since 2018, with higher resolution screens, they last even longer between charges ("up to 45 days") plus allow you to reply with preset messages and control music (sadly lacking from the model I have especially since the Pebble could do that) so perhaps I should treat myself to an upgrade sometime.