UZuum kunye neBlu ziintlobo ezimbini ze Iiselfowuni ezisimahla esinokuzifumana kwiivenkile zaseCoppel, ezi selfowuni azaziwa kakhulu ngenxa yokuba iimveliso zazo zintsha noko, kodwa oku akuthethi ukuba iiselfowuni zikumgangatho ombi.
Iiselfowuni zezi zinto zinethuba elicacileyo ngaphezu kwabo bakhuphisana nabo, kwaye ezo zinto zombini zinikezela ngeefowuni eziphathwayo ezisimahla ezibavumela ukuba bafake iichips kuyo nayiphi na inkampani, enye inzuzo kukuba uninzi lweeselfowuni kwezi mveliso zimbini I-SIM slots ekuvumela ukuba usebenzise amanani amabini ahlukeneyo kwiselfowuni enye, nokuba zivela kwiinkampani ezimbini ezahlukeneyo, oku kukuvumela ukuba uthathe ithuba ngokwenyuswa kweenkampani ezahlukeneyo.
La uphawu Zuum Luphawu lwesiTshayina olwazalwa kungekudala, enyanisweni awukwazi ukufumana iifowuni eziphathwayo ngoku, kodwa kwelinye icala uphawu Blu Ngaphandle kokuba uluphawu olutsha, kulula ukufumana iifowuni eziphathwayo kuba ziluhlobo lwaseMelika kodwa zinomsunguli weLatin-American, enkosi kwinto yokuba yayisekwe kweli lizwe yaqala ukwanda ngokukhawuleza kwaye namhlanje siyifumana kuninzi Iimarike zaseLatin American.
Zombini ezi brand zinika iiselfowuni ezilungileyo kakhulu, nangona kunjalo nganye inezibonelelo zayo Iiselfowuni ezizimeleyo zihlala zithanda ubuhle ngelixa Iiselfowuni zeBlu ziyaqatshelwa ngakumbi yinto onokufumana kuyo izixhobo kunye nezahlulo.