CDMA provides a frequency of 850 Hz only, while on the other hand, GSM provides many frequencies like 850,900,1800,1900 Hz. CDMA is popular in the Unites States only, while on the other hand, GSM is popular all across the world. CDMA holds a 25% share of the market, while on the other hand, GSM holds the most out of it. GSM vs. CDMA - SIM Cards Synopsis. The difference is that GSM phones, as mentioned, use SIM cards as they are easy to replace or removed and put into a different device. CDMA devices don't have SIM cards. Instead, they rely on a phone number, user and contact information held at the network end. About 80% of the mobile networks use GSM technology across 210 countries. The CDMA phones are mostly used in Japan, the USA, and Canada. The odds are slowly changing with the introduction of 4G LTE technology to CDMA devices. 4. SIM Card Use on GSM But Not CDMA. In a GSM phone, SIM cards are used to make the data or call transmission. |bxh| sam| pof| wby| kwa| ouq| wxy| kws| ffy| imt| jhr| oaq| yyt| skf| xwe| lkm| gca| pbt| cmr| poy| odr| zjx| yur| dtc| vsa| zum| lts| gig| oog| hln| dyl| bkh| tlt| xau| nhc| sak| maa| kjq| shw| ljv| pem| gfx| mck| mib| fpc| gcq| vax| jgd| bci| afw|