512GB on a Refurbished iPhone Is Fine For Video. But 1TB Is Better

Why Does Storage Matter More for Video Than for Photos?

Video files are a different beast to photos. A 48-megapixel HEIF photo is around 4–6MB. A single minute of 4K 30fps H.265 footage is roughly 400MB. Bump that to ProRes and you are looking at approximately 1.7GB per minute, according to Apple’s own ProRes file size guidance. That gap is not subtle.

If you shoot 20 minutes of ProRes footage on a typical day, that is 34GB gone. In a week of active shooting, you have used 238GB. A 512GB device is suddenly looking tighter than the spec sheet suggested.

Photos also grow on the best refurbished phones for creators. The move to 48-megapixel sensors across iPhone 15 and later means a ProRAW shot can hit 25MB. Shoot 200 portraits in a session and you have added 5GB before you have touched video.

How Much Can You Actually Fit on 512GB?

In practice, 512GB gives you around 450–460GB of usable space once iOS and system data are accounted for. iOS 18 and its associated caches consume between 10GB and 15GB at baseline, and that figure grows over time as the OS expands.

Here is what that 450GB of usable space realistically holds for a video creator:

For casual creators shooting H.265 and offloading to a laptop or external drive every week or two, 512GB is workable. For anyone running a working library on-device or relying on the phone as their primary edit-and-export machine, the ProRes rows above tell you everything you need to know.

So When Does 1TB Actually Make Sense?

1TB makes sense the moment you stop offloading regularly or start taking your phone’s camera output seriously. Here are the specific use cases where it stops being a luxury and starts being a practical requirement.

You Shoot ProRes Consistently

ProRes was introduced to iPhone with the iPhone 13 Pro. It is a professional codec used in broadcast and commercial production. The quality is genuinely outstanding, but the file sizes are punishing. If ProRes is your default shooting format, 512GB becomes a capacity anxiety machine. 1TB removes that entirely.

You Edit On-Device

Apps like LumaFusion and CapCut create project files, preview renders, and export caches alongside your source footage. A single 10-minute short film project in LumaFusion can occupy 30–50GB of additional overhead once previews and exports are factored in. That overhead stacks fast on a 512GB device.

You Run Multiple Active Projects

If you are a freelancer or content agency running several concurrent projects, you need a buffer. The worst position to be in is deleting usable client footage to free up space mid-production. 1TB gives you enough headroom to hold three or four active projects without making those calls.

You Do Not Offload to a Computer

A lot of creators now work entirely from mobile. No laptop, no desktop, no external SSD. If that is you, your iPhone is both your capture device and your archive. 512GB will not hold a meaningful archive. 1TB at least gives you a fighting chance.

Did You Know? ProRes was originally developed for Mac-based post-production workflows. When Apple brought it to iPhone with the 13 Pro, they required a minimum of 256GB storage to enable the feature at all. On the iPhone 13 Pro, 1TB was the only tier that could record ProRes at 4K 30fps. Later generations relaxed those limits, but the file-size fundamentals haven’t changed.

512GB vs 1TB: Which Refurbished Model Should You Buy?

Both storage tiers are well-represented in the refurbished market right now. The table below covers the models I would actually recommend for creators, based on ProRes support, update lifespan, and current stock availability. All variants listed are unlocked.

The iPhone 13 Pro Max is worth a mention here. It is the cheapest way to get ProRes recording on a refurbished device, and both 512GB and 1TB stock exists unlocked. The caveat: its iOS software support window is now down to one or two years. If you are buying for a two-year run, it is a reasonable budget call. If you want three or four years of updates, start at iPhone 14 Pro Max or newer. For more on that, our guide to iOS update support lifespans breaks it down by model.

What About the iPhone 15 vs iPhone 15 Pro at 512GB?

This is worth separating out because the answer is not what people expect. The standard iPhone 15 512GB unlocked is a capable phone, but it does not support ProRes. ProRes recording is exclusive to the Pro and Pro Max lines. If ProRes is the reason you are buying up in storage, a standard iPhone 15 at 512GB is the wrong call regardless of price.

For creators who shoot standard H.265 and want a large-storage option without Pro pricing, the iPhone 15 512GB makes sense. If you are watching YouTube tutorials on shooting cinematic footage on your iPhone and ProRes keeps coming up, you need to be on the Pro line.

Tech Tip: Before you buy, check your current phone’s storage analytics under Settings > General > iPhone Storage. Filter by “Videos” category. That number is your real baseline. If you already have 80GB of video on a 256GB device, 512GB will feel like breathing room for about six months. 1TB will feel like breathing room for the life of the device.

Is the 1TB iPhone Worth the Price Premium Refurbished?

Yes, more often than not. The price gap between 512GB and 1TB on the refurbished market is consistently smaller than it is new. Apple charges a £200 premium at retail for the 1TB tier on the iPhone 15 Pro Max. On the refurbished market, that difference is typically £80–£120 depending on grade and condition. You are getting the same functionality for a fraction of the new-price uplift.

Look at it this way. If you buy a 512GB device and run out of space in 18 months, you have two options: pay for iCloud storage every month indefinitely, or sell and upgrade. Neither is free. The 1TB device at a modest premium avoids both costs. For anyone serious about mobile content creation, that is a straightforward calculation.

If budget is a genuine constraint, our list of affordable refurbished phones covers cheaper ProRes-capable options worth considering before you rule out the category entirely.

Does Using iCloud Fix the Storage Problem?

iCloud can reduce storage pressure, but it does not solve the underlying problem for active creators. iCloud offloads originals to the cloud and keeps compressed previews on-device. That works fine for finished work you are archiving. It does not help during active production when you need your source files accessible offline, quickly, without a streaming lag.

There is also a cost dimension. The 200GB iCloud plan runs £2.99 per month in the UK. The 2TB plan is £6.99. Over a three-year device lifespan, the 2TB plan costs you £251.64. That is money you could put toward a 1TB device upfront and never pay again. On-device storage always wins on total cost of ownership. If you have more questions about buying refurbished iPhones for specific use cases, our refurbished phone FAQ hub covers a wide range of buying scenarios.

Know Your Mobile Verdict

512GB is a reasonable floor for video creators. 1TB is the right ceiling. The refurbished market makes 1TB devices far more accessible than buying new, and the per-GB cost improvement over the 512GB tier is usually strong enough to justify the step up without a second thought.

If you are serious about shooting ProRes, editing on-device, or simply not wanting storage anxiety to follow you on every shoot, buy the 1TB device. The iPhone 15 Pro Max 1TB unlocked is the strongest overall value in the category right now, with excellent ProRes support, proven thermals, and years of iOS updates still ahead of it.

Pro Tip: When you are browsing refurbished stock, filter for 1TB first, then sort by battery health. A 1TB device at 84% battery health is a far better long-term buy for a creator than a 512GB device at 95%. Storage cannot be expanded later. Battery degradation can be managed with habits, and in some cases replaced. Always prioritise the storage tier you actually need.

Browse the full range of high-storage refurbished iPhones in our vetted refurbished phone database, or check out the latest refurbished phone deals for current pricing across all storage tiers.

Looking for more buying guidance? Our full round-up of the best refurbished phones covers every major model across Apple, Google, and Samsung at every price point. Or head to our refurbished smartphones hub to browse the full category.

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