Look into the BlackBerry Classic, which was released in late 2014 or early 2015 and runs BB10. It's discontinued, but you should be able to find it on ebay for

Look into the BlackBerry Classic, which was released in late 2014 or early 2015 and runs BB10. It's discontinued, but you should be able to find it on ebay for much cheaper than a new KeyOne/Key2 (which are quite large compared to the Classic). It has a great keyboard and all the built-in stuff works very well and is easy to use (SMS, phone, camera, calculator, calendar, notes, music player, maps, etc.). Battery life is pretty good too, or at least it was when new. I used this phone until the end of 2017, at which point the outdated browser and dead app store (free apps only) started to seriously limit its functionality, but if you don't need those it would work just fine. I use a KeyOne now, but I miss the Classic's smaller form factor.