(i only briefly tried the cameras and they seemed fine enough to me for phone cameras, but then again i don't really use mine, because i carry a mirrorless everywhere, so everything is markedly worse than that to me)
XFEDI
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oh and about ergonomics: it's fine. it's a little heavy/thick for a phone, a little light/thin for a tablet. neither was noticeable enough for me to go "wow," and i had to consciously remember to notice the weight.