5G, like every other new technology during its time, has brought with it a plethora of feedback from the public. Some are excited about the latest technology and its capabilities, some have a hint of fear, and there are even conspiracy theories. Apple has made its move in adopting the new technology by installing 5G across iPhone 12 devices.

In this guide, we will be going through the 5G on your iPhone 12 device and how you can make the best use of it.

Before You Start

In addition to an iPhone 12 device, you require a few more things to use 5G in your area. These things are a carrier that supports 5G and a 5G cellular plan. If your carrier does not support 5G, ensure that you switch to one that does so that you can enjoy faster downloading and streaming speeds.

To check if your carrier supports 5G:

  • Ensure that you are in an area that covers 5G network
  • On your iPhone 12 device, go to Settings and enter Cellular Data Options under Cellular, If you see 5G service, then your carrier supports 5G.
  • If you don’t see any 5G option, switch your Airplane mode on and off. If after this, there is still no 5G option, contact your carrier.

The performance of 5G on your iPhone 12 depends on the area where you are and the carrier you use.

You may have to switch to a new SIM if you want to use 5G. This switch is because the SIM card you are on may not support 5G. Make sure to ask your network before getting an iPhone 12 and using your former SIM along with it.

Smart Data Mode

Yes, 5G not only lets you browse the internet faster, but it also allows you to download more quickly. As exciting as downloading your favourite stuff maybe, this causes your battery stress and can drain it faster. This drain is real, especially when the 5G is always enabled.

To solve this issue, Apple presents its Smart Data Mode. With this mode, your iPhone 12 can switch from 4G to 5G and back. This switch depends on the app you are using and the bandwidth it requires. For example, when you have to check a mail or log into a social media app, even if you are in a 5G zone, your network will switch to 4G.

However, if the task you are carrying out on your iPhone requires a higher bandwidth, like downloading a large file, then the network seamlessly switches to 5G. This mode helps in securing your iPhone 12’s battery life and optimizing the system for whichever task you are running.

5G Data Allowance Options on Your iPhone 12

Once in the Cellular Data settings, tap on Data Mode to view and choose from the various modes that are available to your iPhone 12 when it uses 5G.

  • Allow More Data:This option is suitable for users that have a considerable data allowance. Selecting this option enables higher consumption of data by your apps while using 5G, allowing for higher quality for features that require data usage.
  • Standard:This is the default mode which allows background operations like app updates. It also ensures standard quality for apps that use data, whether it is for streaming or calls.
  • Low Data Mode:This option is suitable if you want to conserve as much data as possible or you are managing your data allowance on your plan. It enables your iPhone 12 to use the minimal amount of data when connected to a 5G network.

How to Disable the 5G Setting in Your iPhone 12

Apple allows a certain level of personalization; hence, you can disable the 5G settings on your iPhone 12. You can do so with the following steps:

  • Go to the Settings app on your phone.
  • Look for Cellular and tap on it.
  • Once in Cellular, select Cellular Data options
  • Tap on Voice & Data, where you will see options such as 5G On, 5G Auto and LTE
  • As a default, you will see 5G Auto selected. Select LTE instead to ensure that your iPhone’s connection is only 4G.

As for the 5G On, selecting that option will keep your iPhone connected to a 5G connection whenever it is available, without bothering about your battery life. The 5G Auto (default mode) is the Smart Data Mode that switches between 4G and 5G depending on the connection available and more importantly, optimizes your battery life.


On the status bar of your iPhone 12, there are three different kinds of 5G icons. These icons represent the type of 5G connection that is available in your area. The type of connection, in this sense, is in terms of frequency. Hence, although they are under the same 5G, their range and speed may differ.