The H2O Triple SIM card has the availability to be activated on a wide variety of handsets as it comes in three sizes: standard, micro and regular. This allows you to save time as you no longer have to match the SIM card to the device since the H2O Triple SIM card allows you to pop the desired SIM sizes needed for the phone. • Triple SIM features three SIM sizes in one • Runs off of the AT&T tower • H2O Plans feature unlimited talk, text and data H2O Wireless runs off of AT&T, the fastest 4G LTE network than its leading competitors. This allows your customers to watch more, stream more and do more with their allocated data. H2O Wireless plans features unlimited talk, text and data as well as unlimited international talk to 50+ countries. H2O Wireless plans start as low as $30 monthly.