It's also well-endowed in the communications department. In addition to infrared and NFC, the GS5 is the first device of its kind (according to Samsung) with two Wi-Fi antennas, effectively doubling transfer rates on compatible infrastructure. When launching an app that uses Wi-Fi, a list of available access points automatically appears if none had been previously selected. The GS5 also employs 802.11 ac, which will eventually enable Wi-Fi approaching 1 Gbps. In the meantime, the device can bond Wi-Fi and 4G communications for download speeds up to 450 Mbps, and with carrier support also can boost downloads by bonding 4G channels from multiple towers simultaneously. It's available on all major U.S. carriers, including AT&T, Sprint, T-Mobile and Verizon, plus Boost, C-Spire, Cricket, Mobile PCS, U.S. Cellular and Virgin Mobile.