Preface this by saying it has been a few years. I used to have a windows phone and when the platform died I used a "dumb" phone for a year until my wife told me to get an Android device.

I was using a Nokia ngage qd. It's a small phone that has a peculiar form factor, shaped like a controller. It was made as a gaming handheld, so it has a bunch of gaming apps and over the year a lot of Homebrew stuff. It definitely came from a different era. You need to explicitly lock the phone otherwise it would only lock the keys to prevent pocket dialing. Locking the keys does not require a code to unlock, only the manual locking does iirc.

Because it has games, it was still a great time killer in situations. It's has a small proprietary jack, but I have the original earphones so could listen to music (no mp3, but ogg).

Biggest pet peeve was not being able to sync my calendar. It uses a protocol I couldn't find a setup for. Device also utilized a WAP browser, which is useless now.

Calling and texting: great. Games: great, sometimes crashy or won't load. Homebrew: hit and miss, depending.