ProRes vs HEVC H.265 on iPhone: which codec should you record?

What each codec is for

HEVC H.265 is a delivery codec. It compresses hard and cleverly, producing files small enough to keep on a phone while holding up well to normal editing and posting. This is the default the device guides recommend, and on modern iPhones the quality is high enough that the compression is invisible in ordinary use.

ProRes is an intermediate codec. It compresses lightly, so each frame stays close to what the sensor captured and survives heavy colour work without falling apart. That fidelity comes at a price measured in gigabytes per minute rather than megabytes.

Which iPhones can record ProRes

ProRes is a Pro-model feature, from iPhone 14 Pro onward — 14 Pro and Pro Max, 15 Pro and Pro Max, 16 Pro and Pro Max, 17 Pro and Pro Max. No non-Pro iPhone offers it, and neither does any Pro model older than the 14.

There is a second limit that catches people out: internal ProRes recording is capped at 1080p on every device. Recording ProRes at 4K requires an external USB-C SSD connected to the phone. If you selected ProRes and found your resolution options collapsed, that is why.

The storage arithmetic

This is the part worth internalising before a shoot rather than during one. ProRes files are roughly an order of magnitude larger than H.265 files of the same length and resolution. A few minutes of 4K ProRes will consume storage that would have held an hour of H.265.

On a device that is also your phone — full of photos, apps and messages — that pressure is real. Running out of space mid-shoot is a far more common way to lose a shot than any amount of codec-related quality loss.

If you do shoot ProRes at 4K, test your SSD and cable before the day you need them. A drive that is too slow will drop frames or refuse to record, and that failure shows up at the worst moment.

So when is ProRes actually worth it

ProRes earns its cost in a narrow set of situations:

• Footage that will be graded heavily, especially shot in Apple Log, where you are pushing colour and exposure well beyond what the file was captured at.
• Work that has to intercut with a proper cinema camera and match it.
• Paid work where the client expects a mastering-quality original, regardless of whether the difference survives to the final delivery.

Outside those cases, H.265 at 4K gives you a file you can actually store, transfer and edit on the same phone — and for social video, which is recompressed aggressively by every platform anyway, the difference does not survive the upload.

A note on BRAW

Because the app is made by Blackmagic Design, people reasonably assume it records Blackmagic RAW. It does not. BRAW is a format for Blackmagic's own hardware cameras such as the URSA and Pocket Cinema line. On iPhone, the professional capture format is Apple ProRes, on the Pro models listed above.

Heat, battery and long takes

There is a practical cost to ProRes that specification sheets do not mention. Writing that much data continuously works the phone hard, and a sustained ProRes take heats an iPhone considerably faster than the same take in H.265. A hot phone throttles, and a sufficiently hot one stops recording and tells you to let it cool down.

Direct sun on a black phone, a thick case that traps heat, and simultaneous charging all compound the problem. If you are shooting a long interview or an event where stopping is not an option, H.265 is the safer format for reasons that have nothing to do with image quality — it simply survives longer takes.

• Take the case off for long recordings, and keep the phone out of direct sun between takes.
• Start with a full battery: high-bitrate recording drains it quickly, and a hot battery drains faster still.
• Break long recordings into shorter takes where the edit allows it, which also protects you from losing everything to one failure.

Setting the codec

Codec lives in Settings — the gear icon at the bottom-right of the viewfinder — as the first item in the list. Set it to HEVC H.265 and Resolution to 4K for the default workflow the guides teach. H.264 also appears there; it exists for compatibility with older software and gives you larger files at lower quality than H.265, so there is rarely a reason to choose it.

One thing codec does not change is how your footage looks. Contrast and colour come from Color Space and any LUT you apply, not from the codec. Choosing ProRes will not make a clip more cinematic — it only makes it more editable.