Nokia 207 though not Android ( it's series 40) nor 4G is still a simple cheap 3G/3.5G phone with Exchange and IMAP support. Replaceable battery good time between charges i.e several days. Fast startup time. Micro SD card storage up to 32Gb. On that basis, ticks many boxes for the minimalist fan I would think. In a robust little candy bar form factor. Colour but non-touchscreen display with physical keypad.
And it can be used for tethering, via USB. Great for environments where WiFi or Bluetooth might not work so well - e.g at trade exhibitions from personal experience - where the radio spectrum is crowded by others trying the same.
The 3/3.5G connectivity is great for the tethering capability as well as for email and the phone's built in web browser. Also better sound quality in calls with 3G calling. 3/3.5G adds future proofing - for countries that are looking at switching off 2G coverage to reuse radio band for higherspeed data. 3/3.5G also means phone works with Three in UK which is a 3G and above mobile network.
With all these features though, one would still wonder why anything more than Series 40 is necessary. Therefore use of Android in the Punkt seems excessive.
The Nokia 207 is what the resurrected 3310 should have been. The original 3310 had no camera and nor does the 207. This is great for several reasons: makes it suitable for those environments where cameras are not permitted like some high security workplaces and some rappers concerts! Secondly encourages you to be in the moment of an experience rather than recording it. Thirdly no camera lens to worry about scratching. Adding a camera in the resurrected 3310 was feature creep.