Utumiki wa 3G, womwe umadziwikanso kuti utumiki wachitatu, umakhala wothamanga kwambiri ku deta komanso mauthenga a mawu, omwe amatha kugwiritsa ntchito makina a 3G. Gulu la 3G ndi makina akuluakulu othamanga pamsewu wambirimbiri, opatsa deta maulendo 144 pamphindi (Kbps).
Kuyerekezera, kulumikiza kwa intaneti pa kompyuta kumapereka maulendo pafupifupi 56 Kbps. Ngati mwakhalapo ndi kuyembekezera tsamba la webusaiti kuti mulumikize pazowunikira, mutha kudziwa momwe mukuchedwa.
Mawebusaiti a 3G akhoza kupereka msinkhu wa ma megabits per second (Mbps) kapena zambiri; Izi ndizomwe zimaperekedwa ndi ma modems. Pogwiritsira ntchito tsiku ndi tsiku, liwiro lenileni la makina a 3G lidzasiyana. Zinthu monga mphamvu yamagetsi, malo anu, ndi magalimoto amtunduwu amayamba.