Mobile phones in the era before smartphones had cameras, email clients, games, music players, and even web browsers. They just weren’t very good at those functions and their core feature was being a phone for voice calls. Texting was barely a feature on some of them (the first camera phone in the United States, the Sanyo SCP-5300, didn’t have a two way text messaging client - the user had to go to a website on the phone to send texts, which was inconvenient even on a 1xRTT 3G connection.)

The e-ink phone seems closer to a dumbphone than a smartphone, IMO, largely because it lacks access to an app store.

Source: I sold mobile phones before smartphones and during the early smartphone years (BlackBerry and Palm Treo, for example.)

Edit: calling it a feature phone instead of a dumb phone might be more accurate.

I paid for 1Blocker (https://apps.apple.com/us/app/1blocker-ad-blocker/id1365531024) since it runs locally on my phone to block ads as well as trackers from other installed Apps, whether on my home WiFi, other WiFi, or cellular data. There’s a whitelist feature and the filtering can be tailored. I’ve been using it for years (before I got my current phone) so I can’t comment on battery life but I’ve never noticed it to be bad.

It does break some apps if they’re not whitelisted but that just gives me more reason to decide if I really need the app. It’s also possible to temporarily disable the blocking (5 minutes, 30 minutes, etc) which helps with logging in (since so many login services involve trackers).

I think they used to wax the cardboard. Maybe they still do?

Is there a way to have multiple users on one device with different lists of subscriptions? Or be able to toggle between different lists of subscriptions?

Weather forecasting is actually really important for military operations. Consider weather advisories for aircraft, for example. Or planning an offensive on a clear day.

That said I don’t know if this place was doing climate science or weather forecasting (or both).