Use 5G with your iPhone
iPhone 12 models or later work with the 5G cellular networks of certain carriers. Learn how to use 5G cellular service.
What you need
An iPhone 12 model or later
A 5G cellular plan1
If your new iPhone comes with a physical SIM or eSIM, use that SIM. If not, use the SIM card from your previous iPhone. In some cases, you need to contact your carrier to set up the SIM card from your previous iPhone for use with a 5G network.
Understand the 5G icons in the status bar
When you're in an area with 5G coverage for your carrier and you activate your 5G cellular plan, you'll see a 5G icon in the status bar of your iPhone:
Your carrier's 5G network is available, and your iPhone can connect to the internet over that network (not available in all countries or regions).2
Your carrier’s 5G+, 5G UW, 5G UC, or 5GA network is available, which can include your carrier’s higher frequency version of 5G. Your iPhone can connect to the internet over that network (not available in all countries or regions).2
Learn what to do if you don't see a 5G icon in the status bar.
Learn about 5G options
Contact your carrier to find out if they support 5G and if you're on a cellular plan that supports 5G.
The default settings for 5G on iPhone optimize battery life and data usage based on your data plan.
You can customize these options to use 5G and how much data to use in some apps:
Open the Settings app.
Tap Cellular and then tap Cellular Data Options, or, tap Mobile Data.
Tap Mobile Data Options.
If you're using Dual SIM, tap Cellular, or, tap Mobile Data and choose the number that you want to change.