Do I need a hi-bright display?

Brighter is not always better.  It’s true that hi-bright displays are
more visible outdoors. However, they also use a lot of power.  While this can be compensated for with appropriate power management schemes, an overly bright display can be a problem for a demanding application that relies heavily on batteries. When more power is used, more heat is generated. So heat-sinking needs to be looked at as well. Don’t forget about the other end of the brightness scale. That bright display may need to be ratcheted down a lot to work with night-vision goggles.