How to send large files from an iPhone

On an iPhone you have four options and they behave differently: AirDrop for someone in the room, Mail Drop for up to 5 GB to anyone with an email address, an iCloud link for people already in Apple's world, and a transfer service in the browser for everything else. The one that catches people out is sending video through Messages or WhatsApp as media, which quietly re-compresses it.

AirDrop — same room, any size

If the other person is nearby with an Apple device, AirDrop is the best option available. No size limit worth worrying about, no internet needed, no re-encoding. The original file arrives.

The catch is proximity and Apple. It is not a solution for a client in another city, and it does not reach Android or Windows.

Mail Drop — up to 5 GB, to any email address

Attach something too large in Apple Mail and it offers Mail Drop: the file uploads to iCloud and the recipient gets a download link. Up to 5 GB, and the recipient does not need an Apple device or an account.

Links expire after 30 days. It does not count against your iCloud storage.

This is the most underused option on iPhone and it is genuinely good for the 100 MB to 5 GB range. Its limitation is that it is Apple Mail — if you live in Gmail's app, you are on a different path.

iCloud link — for people inside Apple

Share a file or album via iCloud and you get a link. Fine for family, awkward for clients: it works best when the recipient is also on Apple hardware, and like any share-from-storage approach it grants access to your file rather than handing over a copy. If you move or delete it later, their link changes meaning.

The same argument applies to Google Drive, at length, here — it is the same shape of decision.

Messages and WhatsApp — watch the re-compression

This is the one that damages files silently.

Send a video through Messages or as WhatsApp media and it is re-encoded to save bandwidth. It arrives smaller and visibly worse. For a family clip that is the right trade, and it is why it plays instantly.

For anything you shot properly, send it as a document instead. In WhatsApp that means the paperclip, then Document, rather than the photo button — you may need to save the file to the Files app first. WhatsApp documents go up to 2 GB and are transferred as-is. The WhatsApp specifics are here.

The same applies to photos: sent as media they are compressed, sent as a document the original arrives. That matters for anything being printed or edited.

A transfer service in the browser — everything else

For files over 5 GB, recipients who are not on Apple, or anything you want to expire or revoke, open Safari and use a transfer service. They all work in mobile browsers, and none of them re-encode.

The one to know for this case is SwissTransfer: 50 GB free with no account, per Infomaniak's own documentation checked 1 August 2026, which is ten times what Mail Drop will carry. Below that ceiling the choice matters less than whether you want the link to expire and be revocable, which Mail Drop and iCloud links do not really give you. The comparison covers each service and the date its figures were checked.

Two practical notes for uploading from a phone:

Keep the screen on. iOS suspends background uploads aggressively. A long upload with the phone in your pocket often does not finish. Plug it in, keep Safari in the foreground, and let it run.

Use wifi. Obvious, but a 4 GB upload on mobile data is both slow and potentially expensive.

Getting the original off the phone at all

A subtlety worth knowing: if your iPhone is set to Optimise iPhone Storage, the full-resolution version of an older photo or video may not be on the device — only a smaller preview, with the original in iCloud. Sharing it triggers a download first, and if you are offline or short of space, you can end up sending the optimised version without noticing.

For anything that matters, check the file size before sending. If a 4K video reports as a few megabytes, you are looking at a proxy rather than the real thing.

Quick answers

If you are sending client work, the browser route is nearly always right — it is the only one that gives you an expiry, a revocable link and a delivery that does not depend on which ecosystem the recipient lives in.