These are gloves for cold weather - not freezing weather. They are unlined, so won't keep your hands warm in wet or windy conditions, but I wore them in outside with the temperature in the thirties, and my fingers were appropriately toasty. I had no problems using them on my iPhone, at least, no more problems than I have without the gloves :)
They aren't very stretchy, so if you have big hands, these will be a tight fit.
Gloves came as a different color than expected from the photograph. Seller apologized that the image was incorrect and let me pick an additional pair of a different color. The photo was changed and I ended up with 2 pairs of these awesome gloves! I wear them under my waterproof ones when I snowboard, so I can change music tracks on the mountain and they work out great.
Bought this for my sister for Christmas, She loves it. The touch pads on the fingers are larger than most comparable gloves which is key to why they work so well. They are also pretty stylish and she says they are warm.