To check the free space on an iPhone 6, open Settings > General > iPhone Storage. A bar at the top shows how much of the phone’s capacity is used, and the list below shows which apps take the most room. If your iPhone 6 is still on iOS 10 or earlier, the path is Settings > General > Storage & iCloud Usage > Manage Storage. The iPhone 6 can update as far as iOS 12, so most will use the newer path.
Quick Answer
Settings > General > iPhone Storage. For a quick number, Settings > General > About shows Capacity and Available.
Steps to See Free Space
- Open Settings.
- Tap General, then iPhone Storage. Give it a few seconds to calculate.
- Read the bar at the top, for example “41.2 GB of 64 GB Used”. The rest is free.
- Scroll down to see each app’s size, largest first.

Where to Look by iOS Version
| iOS version | Path |
|---|---|
| iOS 11 and iOS 12 | Settings > General > iPhone Storage |
| iOS 10 | Settings > General > Storage & iCloud Usage > Manage Storage |
| iOS 8 and 9 | Settings > General > Storage & iCloud Usage |
| Any version | Settings > General > About > Available |
Quick Ways to Free Space
- Offload Unused Apps (iOS 11 and later): removes apps you don’t use but keeps their data.
- Delete old videos and empty Recently Deleted in the photo library.
- Clear old messages: Settings > Messages > Keep Messages > 1 Year.
- Remove downloaded music and podcasts you’ve already listened to.
- Move photos to a computer. See moving iPhone photos to a flash drive.
To save battery on the go, see turning Airplane Mode on or off.
Another handy built-in tool: the iPhone level.
Troubleshooting
- “Other” or “System” is huge: Restarting the phone often shrinks cached data. Updating iOS can also help.
- Numbers don’t add up: iOS keeps some space for itself and recalculates slowly. Check again after a minute.
- Back up before deleting: See backing up an iPhone to a Windows PC.
Frequently Asked Questions
How much storage does an iPhone 6 have?
It came in 16 GB, 32 GB, 64 GB and 128 GB versions. Settings > General > About shows yours.
Can I add storage to an iPhone 6?
No. There’s no memory card slot. Use cloud storage or move files to a computer.
Is the iPhone 6 still getting updates?
No new iOS versions. iOS 12 is the last one it supports.
Summary
- Open Settings > General > iPhone Storage.
- Read the used and free space bar.
- Check which apps use the most.
- Offload apps and clear media to free space.

Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.