Watch for these technologies to be gradually phased out and for connectivity to improve. Popular Articles Quad what and octa who? A quick guide to processor lingo. Android Lollipop: Our favorite features. Top 10 battery tips for your smartphone or tablet. The future of CDMA vs. This content is provided for information purposes only. All information included herein is subject to change without notice. Verizon is not responsible for any direct or indirect damages, arising from or related to use or reliance of the above content.
Top Device Brands. Samsung Apple Motorola Google Amazon. GSM stands for Global System for Mobile Communication and is now considered the standard for communication globally, particularly in Asia and Europe, with its availability in over countries worldwide. The GSM Association is an international organization founded in with the goal of developing and overseeing the expansion of the GSM wireless standard. With GSM, our voice is transformed into digital data, which is given a channel and a time slot.
On the other end, the receiver listens only to the assigned time slot, with the call pieced together. You can find the full list of CDMA networks here. CDMA networks layer digitalized calls over one another, assigning unique codes to differentiate between them.
Every call data is encoded with a different key, and the calls are then transmitted at the same time. The receivers each have the unique key as well, to split the combined signal into its individual calls. Both are multiple access standards, which means that multiple calls can go through a single tower, but as you can see, the major difference between the two has to do with the way your data is converted into the radio waves that your phone broadcasts and receives.
There are, of course, more practical considerations that matter more for us as a consumer, which you can find listed below:. With the move towards 5G , the choice between GSM and CDMA becomes even less relevant, as voice call technologies increasingly moved over to data network brands.
Starlink Internet Update. Best Satellite Internet Providers. Get Faster Satellite Internet. How Does Fiber Internet Work? You paid cold hard cash or at least cold hard credit for that new phone, which means you should be able to take it with you to a new carrier , right? While most phones sold across the world are GSM phones, there are some notable exceptions.
But first, what the heck is going on with all these capital letters? Those are just fancy ways of describing two forms of radio technology that phones and phone networks use to transmit voice and data. However, with the widespread adoption of 4G LTE networks, this has changed.
The GSM vs. Check out the best deals on new devices this week. However, as mentioned above, if you have a newer phone, like a Galaxy S20 or even an iPhone 6s , it will often be compatible with all three technologies as long as it is unlocked. T-Mobile has gobbled up Sprint in a merger , meaning that the two networks will eventually merge. If you bought your phone from your carrier, then that can usually tell you what kind of technology it uses.
Verizon uses CDMA technology in its networks, but usually sells phones that are equipped with both technologies. It would be nice if your phone just said what kind of technology it used on the back, next to the model number. If you see both, then your device supports both technologies lucky you! You can use those same About settings to find your model number on both iPhone and Android devices.
Model numbers are also often printed on the back of your phone. There used to be a really easy way to determine what kind phone you had: just see if it has a SIM card slot.
By signing up, you agree to our Terms of Use and Privacy Policy. As 5G networks are rolling out, carriers are beginning to shutter their old 2G and 3G networks. These phones typically require a SIM card to stay connected to that network. Vivint Smart Home Security Review.
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