ProRes Video on iPhone

Why You Need External Storage from Sandisk for High-Quality Mobile Content Creation

Shoot Like a Pro

Resolution Matters

Moving from HD to 4K resolution is step one to capture high quality content. And if you’re already shooting in 4K at 60fps, you’re working with incredibly large file sizes.

Connect Compatible Sandisk Storage
to Your iPhone for 4K60

Shooting in ProRes 4K60fps requires a compatible USB-C™ connected external storage device with a minimum write speed of 220MB/s1.

Be Ready for Post-Production

After recording in 4K video directly to external storage, you can edit on the drive itself, or quickly transfer your videos to your laptop or PC for real-time editing.

WD Red NAS Hard Drive
My Cloud Expert Series EX2 Ultra
My Cloud Pro Series PR2100

Let’s break down what creators need to know about using ProRes with compatible external storage from Sandisk, why external storage is essential, and how to build a mobile video workflow that keeps up with your creative vision.

4K60fps File Sizes Are Massive —
Here's What You're Dealing With

Even with 4K at 30fps, a single minute of ProRes can take up around 6GB2. If you’re recording internally, you’re quickly competing with your phone’s OS, apps, and photo library for space.

Why External Storage Matters for 4K60 ProRes

Internal Storage Workflow

  • Limited to 4K30 ProRes only1.
  • Sharing storage space with apps, media, and OS
  • More time spent transferring files for post-production edits
external-storage-for-prores-external-storage-workflow

External Storage Workflow

  • Enables 4K at 60fps ProRes recording1
  • Dedicated, high-capacity recording storage (no running out mid-shoot)
  • Files can be edited on the drive – just connect to your laptop

Be Ready for Editing

An added benefit of using compatible Sandisk external storage with ProRes: you can edit ProRes footage right from the drive — no transfers, no waiting. That means real-time playback, seamless 4K/8K multi-cam editing, and smooth timeline scrubbing without proxies or previews.

Choosing the Right Sandisk External Storage for iPhone Videography

To capture clean, uninterrupted 4K at 60fps ProRes video, your external storage needs to deliver speed, compatibility, and reliability1. Apple ProRes 4K60 requires sustained write speeds of at least 220MB/s1.

For Creators on iPhone

SanDisk Creator Phone SSD with Compatible MagSafe

  • Record directly to SSD at up to 950MB/s write speeds3
  • Connects via USB-C to iPhone 16 or 15 Pro/Pro Max
  • Hands-free attachment using compatible MagSafe
  • Easily transfers to laptop or desktop via USB-C
  • Includes magnetic ring for added mounting flexibility

Perfect for mobile content creators who want a compact, high-speed external SSD that moves seamlessly from iPhone to post-production.

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SanDisk Creator Series x Adobe

Purchase any device from the Creator Series and get a free trial of select Adobe Creative Cloud products.* Check out what tools you’ll get based on which Creator Series product you buy.

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For Camera-to-iphone workflows

SanDisk PRO-CINEMA CFexpress Type B Recorder Compatible with MagSafe

  • Snap-on MagSafe-compatible recorder for iPhone 16 or 15 Pro/Pro Max
  • Records up to 4K60 ProRes footage directly to a SanDisk PRO-CINEMA CFexpress™ Type B card (sold separately)
  • Designed for creators who shoot with pro cameras and want quick transfer to iPhone
  • High-performance capture, optimized for large-scale ProRes workflows

Ideal for camera-first creators who want the speed of CFexpress media combined with the flexibility of mobile capture.

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Frequently Asked Questions

ProRes shooting bypasses iPhone’s internal storage and records directly to a compatible external storage device connected by a USB-C connector. This allows creators to bypass internal storage limitations and streamline professional workflows.

Related Topics:

USB Flash Drives & External SSDs for iPhone 16 Series

Easily transfer and store your iPhone 16 Series files with compatible flash drives and USB Type-C storage devices.

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BEASTGRIP x SanDisk iPhone Cage

Transform your iPhone 16 Pro or Pro Max into a pro-grade content capture rig with a BEASTGRIP Beastcage, portable SSD mount, and other accessories.

Read More

external-storage-for-prores-related-topics-creator-series

SanDisk Creator Series

From portable SSDs for iPhone and Android, SD & microSD memory cards, and USB flash drives, use the power of Sandisk to store your content creations.

Read More

Disclaimers

  1. https://support.apple.com/en-us/109041
  2. Approximations; results and ProRes video support may vary based on frame rate, bitrate, file attributes and other factors. See iPhone camera settings.
  3. Up to 1000MB/s read speed; up to 950MB/s write speed. Based on internal testing; performance may be lower depending upon host device, usage conditions, and other factors. 1MB = 1,000,000 bytes.
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