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Depending on your iPhone, you'll have different storage options.
Hollis Johnson/Business Insider
You can buy an iPhone with five different amounts of storage space: 64 gigabytes, 128GB, 256GB, 512GB, and one terabyte.
Most iPhone users won't need more than 256GB, or 512GB if you take a lot of photos and videos.
Apple also offers online iCloud storage, which can help free up your device's internal storage.
Every new iPhone comes with an upgraded camera, which is great for taking beautiful photos. But the higher quality your photos and videos are, the more space they take to store.
This means that having enough storage on your iPhone is more important than ever. And luckily, Apple gives users a decent amount of control over how much storage they have.
iPhones come in five different storage sizes
Depending on what kind of iPhone you're buying, you can get one of five different storage sizes. Here's a quick chart showing what each iPhone that Apple currently sells offers:
One terabyte, the largest size, is about twice as much storage space as the 512GB option.
A typical photo taken with the iPhone's main camera is about 2MB large, or 0.002GB. In other words, it takes about 500 photos to fill one gigabyte. Apps can range from 2MB to 2GB, depending on what they're for and how much you use them.
No matter what kind of iPhone you're buying, you've got a few different storage options. So which one is right for you?
128GB and 256GB are the best options for most users. They offer enough storage space for thousands of photos and videos, along with dozens of apps.
At this point, it's a mistake to buy anything with only 64GB. Apps and photos are big enough now that you're going to be running out of space quickly.
If you constantly use your iPhone for professional work — if you're a photographer, for example — or want it to be your main gaming device, then consider 512GB. For regular users, though, it's a bit overkill.
The only reason you'd ever need a 1TB iPhone is if you're regularly recording 4K or 8K video, and your iPhone is the only place you have to store it. Unless your entire world and career revolves around a single iPhone, you don't need 1TB.
iCloud gives you more storage spaceYou can access iCloud through a computer or smartphone.
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Even if you've already bought an iPhone, you're not stuck with whatever storage space you bought.
To manage what gets saved to your iCloud drive, open the iPhone's Settings app and tap your name at the very top, and then iCloud.
One of the best features you can turn in here is the Optimize iPhone Storage setting. When this is on, any photo or video you take won't be stored on your device. Instead, you'll only have a preview saved, and opening that photo or video in the Photos app will download the original right then and there. This can save gigabytes of space without deleting any data.
You can turn this on by opening that iCloud menu, tapping Photos, and then selecting the Optimize iPhone Storage option.