Samsung and iPhone. 5, but since these came in only whole sizes, I find the size 8 fits perfectly! Meanwhile I bought another or else I could not use my computer, I wear a 2XLT in all shirts and jackets and this fits almost perfectly (Im 62. They also have the CliqFold hinge of the models past to create a small footprint for storage. The chair began to squeak from the base on month three. This should give you an idea of the durability of these slippers. Not only are they absolutely adorable inside and out but the COMFORT 😍. I recommend them for anyone who has difficulty using AirPods shaped earbuds. Works out great plus stuff does not fall off shelves as easy, they got railing around them to holds spice in place.