With the iPad, I found when flying the Bulldog (bubble canopy) that the black-bezel version would get incredibly hot whereas my wife's white-bezel version would remain relatively cool (actually still quite hot but nowhere near as hot as my black version).
I did some side by side tests on my patio table in the sun and mine would keel over long before hers would. So my replacement iPad Mini was a white one.
Clearly not all iPads are the same
