these are really good and a large size i would say they would fit nearly all mobile phones.they can be taken in the water up to 100 feet /30 meters or on the beach to prevent sand from getting in your phone and damaging it.It comes with a strap so you can put around your neck.I wouldnt chance it in heavy waves on the beach because of the pressure of water.It can also be used for your credit/debit/store cards and to keep other items waterproofed.good value for money worth purchasing on amazon.