Years ago there was a phone - YotaPhone. The main feature of this phone was having 2 screens - a normal one and a Black&White as Kindle does.
I got an opportunity to be a test “driver” of that device and it was really great if you want to save the battery on your phone or if your phone has already died, you still have an opportunity to use BW Screen. My few usecases were:
- I parked my car, I made a screenshot, put it on a BW screen so that I know where to go even if my phone dies
- Travelings and campings where access to electricity is limited
Considering that Nothing design is mostly Black and White it could have a been a great addition to the line of devices!