Tri-band UMTS/HSDPA is part of IPhone 3G.
The iPhone 3G is internally similar to its predecessor , but included several new hardware features , such as GPS , 3G data and tri-band UMTS/HSDPA .	UMTS	Universal Mobile Telecommunications System	HSDPA	High-Speed Downlink Packet Access	iPhone	iPhone	GPS	GPS	3G	3G	tri-band	multi-band
