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My family has a history of blood pressure problems, so my mother, in order to keep control, has had to buy a couple of devices to measure her blood pressure, which she also uses with my father and grandmother.
I just think it's fantastic that such devices already exist and are so affordable. It makes me wonder if maybe in a handful of years we will have the ability to do x-rays at home and things like that, it would be great.
Charging for cell phones. So much better than a decade ago.
You know the funniest thing? Smartphone charging has been made much more powerful in the last years. Now, instead of 10W, they can seep 80W and charge really fast.
However, due to smartphones also using way more power than before and having way bigger batteries, all those improvements are completely offset.
I have a phone from 2017 and another one from 2023. Both take the same time to charge, and the new one needs a 40W brick, while the old one is happy charging on a 2.5W computer PSU. But the old phone lasts longer than the new one!
I mean technically smartphones. I have watched the smartphone world start, and BLOSSOM, and now we're certainly seeing some enshittification here & there but I have started to fully embrace the budget Samsung phones. Knowing that except for the insulting, glaringly bad exception that is battery life, it is better than the SGS3 of old I had in almost every other way.
I really appreciate LED lights. They used to be so expensive, and yet so basic!! $10/bulb, back when the USD was worth even half a damn, and quality? Ehhh you buy what we have, go fuck yourself. Now... I can buy a pack of quality LED bulbs where I can shift the tone/shade on each one via toggle switch, an 18-pk is $37? A little over $2/bulb?? ๐ Very, very cool 
I just picked up TWO solar panel, rechargeable, D-Cell battery Duracell LED lanterns for $16 each (Costco). USB-C cable included. They can also be use to charge small electronics. Pretty nifty, and for not much money at all! You couldn't get that 10 years ago.
Security cams & recordings, obviously there's also a massive uptick in abuse/deception/people being shitheads. Comes with the territory. But take the shitty people out of the equation & objectively speaking, picture/video/audio quality is soooooooo much better. And digital storage has never been cheaper! So many good options! I saw a $30 security camera you can stick on your WiFi smart garage door opener. Again, looks pretty slick & it costs just a little more than eating out at a nice restaurant. Crazy.
CNC milling & creating art, structures, whatever with lasers & machines is fucking amazing & getting better, more advanced with each passing day. We can mill pieces to screw or friction fit....precisely...together. It's so simple but I'm telling you guys, this is going to lead to a lot of really cool stuff! And some scary stuff. But again, comes with the territory.
All kinds of EVs (especially e-scooters and other small fun PEVs), and computer hardware.
Unfortunately, gains with hardware are usually met with regressions in software performance.
Rejuvenation technology!
They have already rejuvenated an old mouse back to mid life!
It's like battery tech though, small small increments.
I could not think of one initially but actually my washing machine is better than yesteryear.