I have coded a graphical user interface (Qt) for monitoring a GPS and IMU connected to my Pi 3. The problem I have is that I haven't been able to find a decent daylight screen for the Pi.
The better option I have found is the Papirus
https://www.pi-supply.com/product/papirus-epaper-eink-screen-hat-for-raspberry-pi/. However I cannot display nice graphics on it. I also have tried screens like the waveshare touch
http://www.waveshare.com/3.2inch-rpi-lcd-b.htm however these can barely be seen with daylight.
Does anyone know about a good daylight readable screen smaller than 10 inch ?
Edit: I found this one: https://www.bhphotovideo.com/c/product/1336174-REG/smallhd_mon_focus_5_touch_screen.html. It has 800 nits which should be enough to be used outdoors. However, it is engineered with photography/video recording in mind so it is pretty expensive due to some features that I won't be using.