What are my options? All of the pager service sites I found have broken pages and contacts, and their hardware costs 1996 money with AA battery slots.
By "modern" I mean things like this:
- encrypted transit, when using a gateway to send from radio to SMS.
- rechargeable via USB or solar, not AA battery swapping. AA is fine if it can be charged in device.
- microsd or some type of removable storage for contacts, maybe message storage
- 6 line screen instead of 2 or 3
- LED backlight or Indiglo type illumination of characters
- something e-paper like would be cool from a practicality perspective, but this would likely hurt the price.
- some form of water/dust/lint resistance would be a big plus.
So what is this device suppose to do if it doesn't connect to any wireless networks? Just take text notes?
Or, do you mean that you do want ONLY texting? But then you need all your friends to have one of these devices to text with you as well.
Texting phones & Blackberries, and only later, generic smartphones, replaced for 99% of all industies, pagers. Pagers are still a thing only for industies that never bothered changing or had some esoteric requirements (pagers are suppose to use a lower frequency that passes thru thick walls better.)
They still sell basic texting phones. SMS only
Then use sms or any messenger of your choice.
https://www.amazon.com/Bluetooth-Protection-Globalstar-Subsc...
maybe you need to build your own device from a 4g module, arduino, etc.