Isevisi ye-3G, eyaziwa nangokuthi isevisi yesithathu, iyinto yokufinyelela okusheshayo kumasevisi nedatha yezwi, eyenziwe ngokusetshenziswa kwenethiwekhi ye-3G. Inethiwekhi ye-3G iyinethiwekhi ye-broadband yeselula esheshayo, inikezela ngesivinini sedatha okungenani angu-144 kilobits ngomzuzwana (Kbps).
Uma uqhathanisa, uxhumano lwe-intanethi lwe-dial-up kumakhompiyutha ngokuvamile lunikeza ngesivinini esingaba ngu-56 Kbps. Uma uke wahlala futhi walinda ikhasi leWebhu ukulanda phezu kokuxhumeka kokudayela, uyazi ukuthi kuphuza kangakanani lokho.
Amanethiwekhi we-3G anganikeza ngesivinini samamitha angu-3.1 ngesigamu (Mbps) noma ngaphezulu; lokho kuhambisana nokuvinjelwa okunikezwa ngamamodeli ekhebula. Ekusebenziseni kwansuku zonke, ijubane langempela lenethiwekhi ye-3G lizohluka. Izinto ezifana nokuqina kwesignali, indawo yakho, nomgwaqo wenethiwekhi konke kudlalwa.
I-4G ne- 5G yizilinganiso ezintsha zenethiwekhi yeselula.