Introduction
For many UK Android users, the occasional need to send a photo or video to a friend or family member who uses an iPhone is inevitable. In the past, the result was often a blurry, compressed image that looked nothing like the original. The reason was the mismatch between Apple’s SMS‑based iMessage system and Android’s Rich Communication Services (RCS). With the rollout of iOS 18, Apple finally added native RCS support, meaning the two ecosystems can now speak the same high‑quality language. This guide walks you through the steps required to keep your media pristine, and offers work‑arounds for the occasional large‑file scenario.
iOS 18 finally embraces RCS
Apple’s decision to enable RCS on iPhone was announced alongside the launch of iOS 18 in the summer of 2026. As Engadget notes, the update “allows iPhone users to access the higher image quality available via RCS” (Peachey, 2026). The feature is turned on by default, but it never hurts to double‑check, especially if you’ve customised your settings or are using a carrier that still leans heavily on traditional SMS.
How to verify RCS is active on an iPhone
- Open Settings.
- Scroll to Apps → Messages.
- Locate the RCS Messaging toggle and ensure it is green (on).
If the toggle is missing, your iPhone may be running an older iOS version, or your carrier may not yet support RCS. In that case, you’ll need to fall back to alternative methods covered later.
Preparing your Android device
Google Messages: choose the right quality level
Google’s default messaging app, Messages, automatically compresses photos to speed up delivery. To override this behaviour:
- Open a conversation and tap the + attachment icon.
- Select a photo, then look for the HD or HD+ button that appears at the top of the preview screen.
- Tap HD+ Original Quality – this tells the app to send the file without any additional compression.
If you frequently share media, you can make HD+ the default by opening Messages → Settings → Chat features → Media quality and selecting HD+ Original.
Mind the 100 MB RCS limit
RCS still imposes a maximum attachment size of roughly 100 MB. Most photos are well under this threshold, but a 4K video or a burst‑mode photo album can easily exceed it. When you hit the limit, the app will warn you and suggest a different sharing method.
Alternatives for larger files
Google Photos – the simplest cross‑platform option
If both parties have the Google Photos app installed, you can bypass RCS entirely:
- Open the photo or video in Google Photos.
- Tap the Share icon and choose Send in Google Photos.
- Select the iPhone contact from the list (they’ll receive a link that opens the media in their own Google Photos app).
The recipient sees the file at its original resolution, and the transfer is handled over Google’s cloud rather than the carrier network. This works on any Android device, not just Pixel phones, and it’s free up to the user’s Google storage quota.
Google Drive – for truly massive files
When you need to move files larger than 100 MB and Google Photos isn’t ideal (e.g., a folder of RAW images), Google Drive is a reliable fallback:
- Upload the file(s) to a new folder in Drive.
- Tap Share, add the iPhone user’s email address, and set the permission to Viewer or Editor.
- The iPhone user opens the link in the Drive app or a web browser and can download the original files.
Both services respect UK data‑privacy regulations and work over Wi‑Fi or mobile data, so you won’t be surprised by unexpected charges.
Quick Share & AirDrop‑style hand‑off
Pixel 8 a, Pixel 9 and newer, as well as many Samsung Galaxy S series phones, now support Quick Share – a feature that mirrors Apple’s AirDrop. When both devices are nearby:
- In the Android share sheet, choose Quick Share.
- The iPhone will appear as a nearby device if it runs iOS 18 with RCS enabled.
- Tap the iPhone name and confirm the transfer on the receiving side.
The process is fast, uses a direct Wi‑Fi‑direct link, and retains full resolution.
What if the Android phone doesn’t support Quick Share?
For older Android models, Quick Share offers a QR‑code fallback:
- After selecting Quick Share, tap Use QR Code.
- A QR image appears on the Android screen.
- The iPhone user opens the camera app, scans the code, and taps the resulting notification to accept the file.
The QR method works over any Wi‑Fi network and is a handy last‑resort when native AirDrop‑style sharing isn’t available.
Practical tips for UK users
- Carrier compatibility: Most UK carriers (EE, O2, Vodafone, Three) now support RCS on iOS 18, but it’s worth confirming with your provider if you experience issues.
- Data usage: Sending HD+ images over RCS will consume more mobile data than the default compressed version. If you’re on a limited plan, consider using Wi‑Fi or one of the cloud options.
- File formats: iOS can display JPEG, PNG and HEIC without trouble, but RAW files (e.g., .dng) may require the recipient to open them in a third‑party app such as Adobe Lightroom.
- Battery impact: Direct Wi‑Fi‑direct transfers (Quick Share) can be a bit more power‑hungry than SMS‑based RCS, so keep an eye on battery levels for long sessions.
Conclusion
The days of sending a grainy snapshot from an Android phone to an iPhone are largely behind us. With iOS 18’s built‑in RCS support, a quick setting tweak on the iPhone, and a few simple steps in Google Messages, you can preserve the original quality of your photos and videos. For larger files, Google Photos, Drive, and Quick Share (or its QR‑code fallback) give you reliable, cross‑platform alternatives that respect the 100 MB RCS ceiling. Armed with these tools, UK Android users can share memories with friends and family on any platform without compromising on clarity.