In the US, AT&T as well as T-Mobile phones use GSM – and most of the rest of the world uses GSM as well. CDMA in the US is Verizon, Sprint and US Cellular. You need to read up on the subject.
Read moreIs GSM same as 4G?
GSM is a second-generation (2G) cellular technology standard and is, therefore, less capable of providing high-speed data as compared to UMTS, which is a third-generation (3G) technology and LTE, which is a fourth-generation (4G) cellular technology.
Read moreDoes 5G use CDMA or GSM?
Comparison table GenerationTechnologySignal quality/coverage area3GW-CDMASmaller cells and lower indoors coverage on 2100 MHz; equivalent coverage indoors and superior range to GSM on 850/900 MHz.4GOFDMASmaller cells and lower coverage on the S band.5GOFDMADense cells on millimeter waves.Comparison of mobile phone standards – Wikipedia en.wikipedia.org › wiki › Comparison_of_mobile_phone_standards
Read moreWhat devices can run on 5G?
The best 5G phones you can buy right now
Read moreCan all devices handle 5G?
A compatible phone is also an important component of this new fifth-generation cellular network because not just any phone can work with the network. There are already quite a few compatible devices on the market right now, and essentially all new phones coming out support 5G .
Read moreWhat networks use 5G in UK?
5G launches began in the second half of 2019. The four major mobile networks (EE, O2, Three and Vodafone) and Sky Mobile have all now launched and have further plans for 5G, which are detailed below.
Read moreHow does 5G transmit data?
Like other cellular networks, 5G networks use a system of cell sites that divide their territory into sectors and send encoded data through radio waves . Each cell site must be connected to a network backbone, whether through a wired or wireless backhaul connection.
Read more