How to get 5G on iPhone working reliably comes down to confirming those three pieces line up, in that order. Skipping straight to the settings menu is how most people end up confused when the option is not even there.
This guide walks through each step, shows which iPhones actually support 5G, and covers the fixes for when a compatible phone still won’t connect.
1. How to Get 5G on iPhone
Getting 5G working is a short process as long as you check things in the right order. Jumping straight to the settings step without confirming the first two often leads to a dead end.
Step 1: Confirm Your iPhone Model Supports 5G
5G requires a dedicated modem chip that Apple only started including with the iPhone 12 series in 2020.
Anything older, including the iPhone 11 and every iPhone SE before the third generation, has no 5G hardware at all, and no software update can add it later.
Step 2: Check Your Carrier Plan and Coverage Area
A supported phone still needs a plan that includes 5G access and a location within the carrier’s 5G coverage map.
Some older or heavily discounted plans were grandfathered in before 5G existed and do not include it by default, so it is worth confirming directly with the carrier rather than assuming.
Step 3: Turn On 5G in Cellular Settings
Once the model and plan are confirmed, open Settings, then Cellular, then Cellular Data Options, then Voice & Data, and select 5G Auto or 5G On instead of LTE. This is usually the setting people jump to first, but it only works once the first two steps are actually true.
Worth knowing: “5G On” forces a 5G connection whenever one is available and can noticeably shorten battery life compared to “5G Auto,” which is the default and generally the better setting for daily use unless a consistently faster connection matters more than battery life.
2. Which iPhones Support 5G?
Apple added 5G starting with the iPhone 12 lineup, and every mainline series released since has included it.
| iPhone series | 5G support |
|---|---|
| iPhone 12 series and later | Yes |
| iPhone 13 series | Yes |
| iPhone 14 series | Yes |
| iPhone SE (3rd generation) | Yes |
| iPhone 15 series | Yes |
| iPhone 16 series | Yes |
If your phone falls anywhere in this range, the hardware is not the issue, and the next thing to check is the plan and coverage rather than the phone itself.
>>>Read more: How to Get a Free iPhone That You Must Know in 2026
3. Common Reasons 5G Isn’t Showing Up Even on a Supported iPhone
A 5G-capable iPhone can still show LTE for reasons that have nothing to do with the hardware itself.
Low Power Mode is turned on, which disables 5G in most situations, aside from exceptions like video streaming, and reverts the phone to LTE until it’s turned off.
This is different from Low Data Mode, which limits background data usage but doesn’t affect which network generation the phone connects to, so it’s worth checking Settings, then Battery, rather than the data settings if 5G disappeared right after the phone hit low battery.
The carrier plan excludes 5G, particularly on prepaid or legacy plans that predate the carrier’s 5G rollout.
The area lacks 5G coverage, which is common outside dense suburban and urban zones, regardless of what a coverage map technically claims.
An outdated carrier settings update is sitting unapplied, which sometimes blocks network features until installed through a software update check.
The 5G icon is showing but speeds still feel like LTE, which happens because some carriers display the 5G icon on connections that aren’t meaningfully faster than LTE yet. This isn’t a phone problem, it reflects how that specific carrier is labeling its network in that area.
Working through this list usually explains why a phone that should have 5G keeps defaulting back to LTE.
4. Fixing Temporary 5G Connection Glitches
Sometimes every setting is correct, and the phone still won’t grab a 5G signal. A short list of resets usually clears this up:
- Step 1: Restart the phone, which forces it to reconnect to the nearest tower from scratch.
- Step 2: Toggle Airplane Mode on for a few seconds, then off again, to refresh the current connection.
- Step3: Reset network settings under Settings, then General, then Transfer or Reset iPhone, if the problem continues (this also clears saved Wi-Fi passwords).
- Step 4: Check for a carrier settings update by going to Settings, then General, then About, and waiting for a prompt.
- Step 5: Reinsert the SIM card or check the eSIM configuration if none of the above resolves the issue.
Most temporary glitches clear up after the first or second step, so it is worth trying the simplest fix before moving down the list.
5. iPhones That Is Not Compatible for 5G
Some iPhones simply cannot support 5G no matter what settings are changed, since the limitation is built into the hardware itself.
- iPhone 11, 11 Pro, and 11 Pro Max
- iPhone XS, XS Max, and XR
- iPhone X and earlier
- iPhone SE (1st and 2nd generation)
Anyone with one of these models will need to upgrade to a 5G-capable iPhone to get a 5G connection, since no combination of settings or carrier plan changes the hardware inside the phone.
6. FAQs
These quick answers cover what people usually ask once the basic setup still isn’t working.
Does my SIM or eSIM need to be updated to get 5G?
Usually not, since most SIM and eSIM profiles issued in the last several years already support 5G. If 5G still won’t connect after confirming the phone and plan are compatible, contacting the carrier to reissue the SIM or refresh the eSIM profile is a reasonable next step.
Why does 5G disappear indoors but work fine outside?
Higher-frequency 5G bands lose strength quickly when passing through walls, glass, and other building materials. Moving closer to a window or stepping outside often restores the connection, since the signal itself is simply weaker indoors rather than unavailable.
Do I need a special data plan to use 5G on iPhone?
Most modern plans include 5G access at no extra cost, though some older or heavily discounted plans predate 5G and do not include it automatically. Checking directly with the carrier confirms whether the current plan supports it.
Will switching carriers give me better 5G access?
It can, since 5G coverage and tower density vary noticeably between carriers in the same area. Checking each carrier’s published coverage map for your specific location is more reliable than assuming coverage is the same everywhere.
Conclusion
How to get 5G on iPhone working reliably comes down to checking the model, the plan, and the settings in that order, rather than assuming a single toggle controls everything.
A phone from the iPhone 12 series onward has the hardware to support it, but coverage gaps, plan limitations, and small connection glitches can still get in the way.
Working through the checks above usually solves the problem without needing a new phone, unless the current one falls on the list of models that were never built with 5G in the first place.
