You cannot increase the storage of an iPhone.
- However, you can optimize iPhone Storage by using iCloud Storage in order to save space on your device
- If you had turned on Messages in iCloud & iCloud Photos and you delete Photos, Videos and Messages from the iPhone then it is deleted from iCloud too, and vice-versa. At the same time, it is also deleted from all the devices that use the same Apple ID.
- And if you happen to take a backup either over iTunes or iCloud after deleting Photos, Videos & Messages all the photos and messages are deleted from the backup (iCloud/iTunes) too when you take the backup next time.
- Alternatively, you may upload data to iCloud Drive.
![](https://support.apple.com/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png)
Settings > [your name] > iCloud Tap Photos > Choose Optimize [device] Storage --> Set up and use iCloud Photos - Apple Support
![](https://support.apple.com/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png)
You may buy iCloud Storage. --> Buy more iCloud storage - Apple Support
![](https://support.apple.com/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png)
Before you buy more iCloud storage see if you can manage your existing storage --> Manage your photo and video storage - Apple Support
![](https://support.apple.com/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png)
Your photos are always available for both iPhone and iCloud. You delete it on the iPhone it is gone from iCloud and vice-versa.
To save space on your iPhone use optimized iPhone storage. Remember, if you delete in one it is deleted everywhere.
![](https://support.apple.com/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png)
Get started with iCloud Photos:
- Tap Settings > [your name] > iCloud > Photos.
- Turn on iCloud Photos.
- Select Optimize iPhone Storage to save space on your device.
![](https://support.apple.com/library/content/dam/edam/applecare/images/en_US/ios/iphoto/ios13-iphone11-pro-settings-name-icloud-photos-crop.jpg)
With Optimize Storage, smaller, space-saving photos and videos are kept on your device while all of your original, full-resolution versions are stored in iCloud. And as long as you have enough space in iCloud, you can store as many photos and videos as you want.
![](https://support.apple.com/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png)
How to check the storage on your iPhone, iPad, and iPod touch
![](https://support.apple.com/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png)