Can an iPhone XR internal storage be increased?

Sorry, no. An iPhone's internal storage is a fixed size and cannot be increased. You will need to delete something to make more room.

Here are some helpful articles that can guide you on how to free up storage space on your phone.

How to check the storage on your iPhone and iPad - Apple Support

Manage your photo and video storage - Apple Support

Clear Other storage on your iPhone or iPad - Apple Support

Batterypercentagefeature Said:

"Can an iPhone XR internal storage be increased?: I have an iPhone XR, and it’s internal storage space is almost at capacity, I’ve already deleted/offloaded many several apps already to make room, but that’s still not enough, I do not want to set my phone back to its factory settings, is there any other method around that?"

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Caches may have intensely uploaded. So, clear them.

Troubleshooting iPhone Storage:

Internal storage cannot be upgraded. It is what it is. So, the maximum internal storage capacity never increases, even if you upgraded your iCloud plan. Learn More here: What's the Difference Between Device Storage and iCloud Storage? Apple Support

So, what to do...

Clear Space Using my User Tips:

• How to Clear Space from your Mobile Device, and What to Clear: - User Tip
• How to Clear "Other" in your iPhone's Storage - Use Backup - User Tip

Batterypercentagefeature wrote:

I don’t necessarily need a new phone/trade-in, I just need more storage space without having to do a factory reset

Hello, you have an iPhone XR, and it was purchased with too little internal storage for the current usage requirements.

You wish to resolve this internal storage limitation without performing a reset. (Good news here about factory resets too, as a factory reset generally won’t cure this. App data cached locally will generally re-download as the apps are used after the reset, for instance. There’s a reason folks were not suggesting that.)

As an aside, if you are seeking to avoid performing the factory reset—which again, only very rarely helps with inadequate storage—because of a lack of backups, that’s another issue, as the data here is one drop, one dunk, or one loss or theft, away from catastrophic data loss.

Your options here are to offload more of the contents and apps (as was linked), or to migrate more of the local content to iCloud (as was linked), or to replace this iPhone with an iPhone with a capacity better suited for your current and likely future storage usage (as was linked). Your app usage is comparatively large for the capacity of your iPhone too; lots of apps, or some very large apps, or both.

An iPhone with too little storage for current expectations will usually need ongoing management, or alternatively needs reduced app and storage expectations.

If you have a lot of pictures and video taking up space, you might consider other cloud storage options such as Microsoft OneDrive, Dropbox or Livedrive.

You could move your data to there and free up space on your phone but still have access to them as long as you have an Internet connection.

If you have a lot of space being eaten up by *other*, then you may have corrupt data and unfortunately restoring your phone may be your only option to clear that out.

You might consider a trade-in for a new iPhone (one configured with sufficient internal storage): Apple Trade In - Apple

iPhone XR is the oldest iPhone model with support for the current iOS 17.

All computing devices have cache, including iPhone. Updates don't give you cache. You want to clear cache which accumulates over time. On iPhone, that usually means opening settings App and taping Safari, then tap Clear History and Website Data. But that's not going to free up much space on your iPhone.

Batterypercentagefeature wrote:

if you’ll of read/paid attention to my post, you’ll of seen that I mentioned about things being deleted, I just don’t want to restore my phone back to its factory settings

And if you read his post, he never suggested you need to restore your phone back to factory settings. Kurtosis12 provided excellent advice on what you may consider doing if you are out of space on your iPhone.

Batterypercentagefeature Said:

"Do you happen to know whether or not any/all iPhone models will have an update that includes a cache?"

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This can Occur on any iPhone :

Any iPhone can Get this Cache Issue. Unfortunately, there is no way to know why, for when it occurred. It may be after an update, or it may just be out of nowhere. So, clear them.

Cache for things like Web page contents and the like doesn’t add storage. It uses it.

The purpose of cache is to make it quicker to get something that a computer needs again than to go and re-compute or re-load the information in question. It does that by storing a local, ready-made, copy of the information.

Yes, I did read your post, no need to get snarky. I was merely offer other ideas on what to delete.