I'd agree with that assessment. My leather case for my 6 is pretty slick when my hands are dry. My wife has the silicone case for her 5c, and it is pretty grippy all the time.Just as a point of reference, while the Apple leather case may be more attractive the Silicon Apple case adds more grip-ability. Its a tough choice Safety or beauty
Is it true that the leather case is thinner and less bulky than the silicone case?
No I've not got that issue. I had the same case on my 5S for a year and that was fine as well. Has it got wet? I'd get it swapped.
Are the blisters permanent? Or do they go away/diminish after a while? The grain on the 6/6 Plus case leather definitely seems a bit finer than the one on the 5S case as well.I had the case for my 5S, as well, and it never had that problem.
With the 6's case, it's not like I've taken it in the shower or even in the rain, but it might up touched the condensation from the bottom of a glass. The 5S case never had any problem with that, but this one seems to act like a sponge. If it touches even the slightest amount of moisture, it soaks it all in and creates these 'blisters'.