zlacker

>>asimop+(OP)
I want a thick clunky device without a screen that can run for 4-7 days without charging. Then i want 1) a normal size device, 2) a tiny one and 3) a tablet. These should be terminals, little more than a screen, a battery and some radio to communicate with the herefore mentioned brick that does all of the heavy lifting. It needs only 20-30 meter range. The brick may also feature a webserver captive portal with public bluetooth and wifi access.

>>theend+Ig
What you need is a power bank. Then you can charge your phone, or any other device Why do you need multiple days? Charge your devices overnight. Get a fast charger that charges in minutes if you forget or are out. There are power banks with builtin chargers.

Also, if you want really small device, I found smartwatches are nice adjunct to phone. Can check notifications and do basic things on watch instead of pulling out phone. The watch uses phone for data, but there is no point in terminals when smartwatch chip can handle that. There are watches with LTE that work without the phone.

>>ianbur+562
Why would you want one more thing to think about 2000 times per year?