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The Daily Insight

Is an iPhone 4 usable?

Author

Rachel Newton

Updated on February 27, 2026

Is an iPhone 4 usable?

There are plenty of people out there who are still using an iPhone 4. So if you’re wondering if you can still use this smartphone in general, the answer is a definite yes. As a result, their smartphones feel great in your hands and come equipped with easy-to-use software.

Will an iPhone 4 work without a SIM card?

Yes. Once activated the Phone can be used without a sim card. All features function except of course making calls and sending texts.

Can iPhone 4 still be used in 2021?

Q: Is It Possible To Use iPhone 4 In 2021? Yes, you can turn the iPhone 4 on and connect it to the internet. You can still run some applications on it too, but most modern, popular apps will no longer function on the phone. Without the latest software, Apple’s iPhone 4 is also at risk from hackers.

Can I still use iPhone 4s?

The iPhone 4s does an excellent job with simple tasks. It doesn’t glitch, it launches apps quickly, and its camera is no worse than any cheap Xiaomi or Samsung. However, the lack of applications is still a decisive factor. iPhone 4s is not suitable as a temporary replacement for your main smartphone.

Can iPhone 4s be upgraded to 4G?

You can’t. The iPhone 4S does not support 4G networks. The iPhone 4s does not have the 4G nor the LTE frequencies available in its cellular radio transciever. Only phones sold for AT and T-Mobile in the US will display the “4G” indicator when connected to an HSPA+ network.

How can I update my iPhone 4 to iOS 10?

On your device, go to Settings > General > Software Update and the update for iOS 10 (or iOS 10.0. 1) should appear. In iTunes, simply connect your device to your computer, choose your device, then select Summary > Check for Update. If there’s an update available, select Download and Update.

Can you use old iPhone on Wi-Fi?

You can absolutely use the old iPhone as a Wi-Fi-only device that can still use iMessage, FaceTime, and other apps included on iOS and that you’ve downloaded from the App Stores. It sounds like you’ve already restored the device to its default settings, which is the first step.

How can I activate my iPhone 4?

Open the iTunes app on the computer. Connect the iPhone to the computer via USB cable. Allow time for iTunes to detect and activate your iPhone; successful activation indicated when iTunes shows ‘Set up as New’ or ‘Restore from Backup’ screen. Follow onscreen prompts to complete set up.

Why doesn’t the iPhone 4 from Sprint have a SIM slot?

The reason why the iPhone 4 from Sprint doesn’t have a slot for a SIM card is that Sprint is a CDMA carrier—they don’t use SIM cards for some phones as the technology is built into the cell phones themselves.

Can I use my iPhone SE with Sprint or AT?

No matter GSM or CDMA, Sprint, or Verizon, these iPhone models will work on any carrier. Just make sure the devices are paid for in full and properly unlocked. Select your AT or T-Mobile iPhone model, and we’ll show you the compatible carriers that you can switch to: iPhone SE from T-Mobile or AT

Can I switch my iPhone from sprint to another carrier?

Its not all bad news though, as long as your device is unlocked and has previously run on the Sprint network you will be able to switch to a carrier operating on Sprint’s network (Sprint MVNO). Older Sprint iPhone models 4, 4s and 5 are only compatible with Sprint’s CDMA network.

Which iPhone models are compatible with Sprint’s CDMA network?

Older Sprint iPhone models 4, 4s and 5 are only compatible with Sprint’s CDMA network. iPhone models 5c, 5s, 6, 6+, 6s, 6s+, SE from Sprint were designed to support all major network bands and are compatible with all major network providers. This means iPhone model 5c, 5s, 6, 6+, 6s, 6s+, SE will work on any carrier.