Folks, I just did a few more tests in broad sunlight and am TOTALLY BLOWN AWAY by this $49 phone. Smooth, stable, no lag whatsoever, everything just works! The screen is an order of magnitude more visible in direct sun than iPad
mini 2 or Note 4 that I used before, no shade needed! Fits in the RC arms well. (tip: turn off Touch-disable mode in Settings (which is to prevent accidental touch operations while in pocket), the right arm covers the proximity sensor and it complains).
RUN to your Walmart now! It's a steal of the century, if not the millenium! I'm really happy with this little discovery.