How to Transfer Data from iPhone to iPhone Before Selling Your Old One

30 minutes. Everything transferred. Then sell the old one.

That is the reality of moving from one iPhone to another in 2026, and it is wildly different from what most people expect. The common assumption is that transferring everything to a new iPhone takes hours, requires technical knowledge, and inevitably loses something important along the way. Your photos, your messages, your apps, your settings — surely something gets left behind.

It does not. Apple's Quick Start feature transfers everything from your old iPhone to your new one in a single, automated process. Every photo. Every message. Every app, including its data and (in most cases) its login state. Your wallpaper, your home screen layout, your Wi-Fi passwords, your Health data, your Apple Watch pairing. All of it. In under 30 minutes for most devices.

The reason this matters for selling your old phone is simple: the fear of losing data is the number one reason people delay selling. They keep both phones "just in case" for weeks or months, and every week that old iPhone sits in a drawer, it loses £2 to £4 in value. Over two months, that is £20 to £35 evaporated from a device you are not even using.

This guide walks you through the three transfer methods, step by step, so you can move everything to your new iPhone with confidence and then sell the old one while it is still worth good money.

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The Three Transfer Methods

Apple gives you three ways to transfer data from one iPhone to another. Each has its strengths, and the best choice depends on your situation.

Which Should You Use?

• If both phones are in your hands and working: Use Quick Start. It is the simplest method and transfers the most data.
• If your old phone is damaged, lost, or already wiped: Use iCloud Backup Restore. This pulls everything from your most recent iCloud backup.
• If you have a lot of data (256GB+) and want the fastest transfer: Use a wired transfer. It is the quickest method for large amounts of data.

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Method 1: Quick Start (Recommended)

Quick Start is Apple's flagship transfer method and the one most people should use. It creates a direct connection between your old and new iPhones and copies everything across wirelessly. No computer needed. No cables needed. No iCloud storage concerns.

Before You Start

1. Charge both phones to at least 50 percent. The transfer uses significant battery on both devices.
2. Update your old iPhone to the latest version of iOS. Go to Settings, then General, then Software Update. The transfer works best when both phones are on the same iOS version.
3. Know your Apple ID password. You will need to enter it during the setup process.
4. Have your old phone's passcode ready. You will be asked to enter your old phone's passcode on the new phone.
5. Clear space if needed. If your new iPhone has less storage than your old one, you may need to free up space on the old device first. Check in Settings, then General, then iPhone Storage.

Step-by-Step Process

Step 1: Turn on your new iPhone. If it has already been set up, you will need to erase it first. Go to Settings, then General, then Transfer or Reset iPhone, then Erase All Content and Settings. Then start the setup process fresh.

Step 2: Place both phones next to each other. Your old iPhone should be unlocked and on the home screen. When the new iPhone starts, your old iPhone will display a prompt asking if you want to use your Apple ID to set up the new device. Tap Continue.

Step 3: Scan the animation. Your new iPhone will display a swirling pattern of dots. Hold your old iPhone over the new one so the pattern appears in the camera viewfinder. This establishes a secure connection between the two devices.

If the camera is not working on your old phone (cracked lens, for example), tap Authenticate Manually and follow the on-screen instructions instead.

Step 4: Enter your old phone's passcode on the new phone. When prompted, type your old iPhone's passcode on the new device. This authorises the transfer.

Step 5: Set up Face ID (or Touch ID). You will be prompted to set up biometric authentication on the new device. You can do this now or skip it and set it up later.

Step 6: Choose "Transfer from iPhone." This is the critical screen. You will see two options: "Transfer from iPhone" and "Download from iCloud." Choose Transfer from iPhone for the direct device-to-device transfer. This method does not count against your iCloud storage and transfers data that iCloud backups do not include (such as some app-specific data and locally stored files).

Step 7: Wait. Both phones will show a progress bar and estimated time remaining. Keep both phones near each other and plugged in if possible. Do not use either phone during the transfer.

Typical transfer times:

Step 8: New iPhone restarts. Once the transfer is complete, your new iPhone will restart. After it boots up, you will see your familiar home screen, wallpaper, apps, and settings. Apps will download their latest versions from the App Store in the background — you may see placeholder icons with progress circles for a few minutes.

Step 9: Verify. Check that everything made it across. Open Photos and scroll to the oldest pictures. Open Messages and check your conversation history. Open any apps that hold important data (banking, notes, health). More on verification below.

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Method 2: iCloud Backup Restore

This method is ideal when your old phone is not available, is too damaged to use, or has already been wiped. It restores everything from your most recent iCloud backup.

Before You Start

1. Make sure you have a recent iCloud backup. On your old iPhone (if available), go to Settings, then tap your name at the top, then iCloud, then iCloud Backup, then Back Up Now. Wait for it to complete.
2. Check your iCloud storage. If you have never paid for iCloud storage, you have 5GB free, which is almost certainly not enough for a full backup. You can temporarily upgrade to iCloud+ (50GB for £0.99/month or 200GB for £2.99/month) to create a complete backup, then downgrade after the transfer.
3. Have a stable Wi-Fi connection. iCloud restore downloads your entire backup from Apple's servers. A fast, reliable connection makes a significant difference to the transfer time.

Step-by-Step Process

Step 1: Turn on your new iPhone and proceed through the initial setup screens (language, region, Wi-Fi).

Step 2: On the "Apps & Data" screen, choose "Restore from iCloud Backup."

Step 3: Sign in with your Apple ID and password.

Step 4: Select the backup you want to restore from. Choose the most recent one. The screen will show the date and size of each available backup.

Step 5: Wait. The restore time depends on your backup size and internet speed.

Step 6: Stay connected to Wi-Fi and power. The phone will continue downloading apps and data in the background after the initial restore. This can take an additional 30 to 60 minutes depending on how many apps you have.

Limitations of iCloud Backup

iCloud backup transfers most of your data, but not everything. Some things you may need to set up again:

• Apple Pay cards: You will need to re-add your payment cards in Wallet.
• Some app logins: Banking apps, authenticator apps, and apps with extra security measures will require you to sign in again.
• Bluetooth pairings: You will need to re-pair Bluetooth devices (headphones, speakers, car systems).
• Wi-Fi passwords for some networks: Most transfer, but some enterprise or certificate-based networks may need reconfiguring.

For most people, these are minor inconveniences that take 5 to 10 minutes to resolve.

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Method 3: Wired Transfer

The wired method is the fastest option, especially for devices with large amounts of data. It uses a direct cable connection between the two phones.

What You Need

• For two USB-C iPhones (iPhone 15 and later): A USB-C to USB-C cable.
• For one Lightning and one USB-C iPhone: A Lightning to USB-C cable, or a Lightning to USB-C adapter plus a USB-C cable.
• For two Lightning iPhones (iPhone 14 and earlier): A Lightning to USB-C cable and a Lightning to USB-C adapter. This configuration is uncommon; Quick Start is usually simpler for two older iPhones.

Step-by-Step Process

Step 1: Start the Quick Start process as described in Method 1 (place phones next to each other, scan the animation, enter passcode).

Step 2: When prompted for the transfer method, connect the cable between the two phones. The setup process will detect the wired connection and offer to transfer data over the cable.

Step 3: Choose "Transfer from iPhone" and the transfer will proceed over the wired connection.

The wired transfer is approximately 2 to 3 times faster than the wireless Quick Start transfer. A 128GB transfer that would take 25 minutes wirelessly can complete in 10 minutes over a cable.

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What Transfers and What Does Not

This is the question everyone asks, and the answer is more reassuring than most people expect.

What Transfers Automatically

What May Need Manual Setup

The Apple Watch Catch

If you have an Apple Watch, there is one important extra step. Before transferring data to your new iPhone, unpair your Apple Watch from your old iPhone. This automatically creates a backup of your Watch data. After setting up your new iPhone, pair the Watch to the new phone and restore from that backup.

If you forget to unpair before wiping your old iPhone, you can still pair the Watch to the new phone, but you will lose your Watch-specific data (activity history will be preserved in Health data, but Watch settings and app layouts will not).

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After the Transfer: Verify Everything

Do not wipe your old iPhone the moment the transfer finishes. Spend a day or two using your new phone to verify that everything transferred correctly.

The Verification Checklist

1. Photos: Open the Photos app and scroll to the very oldest pictures. Check that your full library is there, not just recent photos. If you use iCloud Photos, give it time to download the full library.
2. Messages: Open Messages and check conversations from months or years ago. Verify that both iMessage and SMS conversations transferred, including group chats.
3. WhatsApp: Open WhatsApp and scroll through your chats. Check that media (photos, videos, voice notes) within conversations is accessible.
4. Contacts: Open Contacts and search for a few names. Check that phone numbers, email addresses, and notes are intact.
5. Notes: Open Notes and verify that your notes, including any with attachments or scanned documents, transferred.
6. Banking apps: Open each banking app and confirm you can sign in and access your accounts. Some will require re-verification.
7. Authenticator apps: If you use an authenticator app for two-factor authentication, verify that all your codes are generating correctly on the new device. This is critical — losing your authenticator codes can lock you out of accounts.
8. Health data: Open the Health app and check that your historical data (steps, workouts, medical information) is present.
9. Saved passwords: Go to Settings, then Passwords, and verify your saved logins are available.
10. Podcasts, music, audiobooks: If you have downloaded content, check that it is accessible or re-downloading.

If anything is missing, do not panic. Your old iPhone still has the data. You can re-attempt the transfer or manually move specific items (AirDrop individual files, export contacts, etc.) before wiping.

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Then Wipe and Sell

Once you are confident everything is on your new iPhone, it is time to wipe the old one and sell it.

Step 1: Unpair Your Apple Watch (If Applicable)

If you have not already done this, unpair your Apple Watch from the old iPhone before wiping it.

Step 2: Sign Out of iCloud

This is the single most important step. Go to Settings, tap your name at the top, scroll down, and tap Sign Out. Enter your Apple ID password when prompted. Choose whether to keep a copy of your data on the device (it does not matter since you are wiping it next).

Signing out of iCloud disables Activation Lock, which is the lock that prevents anyone else from using your iPhone without your Apple ID. If you skip this step, the buyer receives a locked device that they cannot set it up. Buyback services will either reject the device or ask you to remove the lock remotely, delaying your payment.

Step 3: Factory Reset

Go to Settings, then General, then Transfer or Reset iPhone, then Erase All Content and Settings. Enter your passcode and confirm. The phone will take a few minutes to wipe and then restart to the "Hello" setup screen.

For a more detailed walkthrough of the reset process, see our complete factory reset guide.

Step 4: Remove Your SIM Card

If your old iPhone has a physical SIM card, remove it using a SIM ejection tool (or a straightened paperclip). Your SIM card contains your phone number and should not be sent to the buyer. If you use an eSIM, it was removed during the factory reset process.

Step 5: Get Your Quote and Sell

Your old iPhone is now a clean slate — no personal data, no account locks, ready for its next owner.

Get an instant quote on TechLoop. Enter your model, storage, and condition. If the screen is cracked, if there is cosmetic wear, if the battery health is low, describe it honestly. You will receive a price that reflects the device's actual condition, and that price is locked for 7 days.

TechLoop provides free postage — you will receive a prepaid shipping label. Pack the device securely, drop it at a post office or arrange a collection, and you get paid the same day it arrives. Most customers see funds in their bank account within 24 hours.

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Common Concerns

"What if the transfer fails halfway through?"

It is rare, but it can happen, usually due to low battery or the phones being moved apart during a wireless transfer. If it fails, you have not lost any data on your old phone. Simply restart the process. Your old iPhone's data is untouched until you explicitly wipe it.

"I do not have enough iCloud storage for a backup"

You have two options. First, you can temporarily upgrade your iCloud storage (£0.99/month for 50GB) just long enough to create a backup and transfer. Cancel the subscription after the transfer is complete. Second, skip iCloud entirely and use Quick Start's direct transfer method, which does not use iCloud storage at all.

"My old iPhone has a cracked screen — can I still transfer?"

If the screen responds to touch (even partially), you can complete Quick Start. You only need to interact with the old phone briefly — unlocking it, tapping "Continue" on the prompt, and holding it near the new phone. If the screen is completely unresponsive, use an iCloud backup restore instead. This requires no interaction with the old phone at all. You can still sell a cracked iPhone for good money afterwards.

"What about my two-factor authentication codes?"

This is the one area where you need to be careful. If you use Google Authenticator (which stores codes locally, not in the cloud), you must export your codes before wiping the old phone. Open Google Authenticator, tap the menu, select "Transfer Accounts", then "Export Accounts", and scan the QR code with your new phone.

If you use Apple's built-in password manager for two-factor codes, or an app like Authy or 1Password that syncs across devices, your codes will transfer automatically.

"Do I need a computer for any of this?"

No. All three transfer methods work phone-to-phone without a computer. If you prefer to use a computer, you can create a full backup via Finder (Mac) or iTunes (Windows) and restore from that, but it is not necessary.

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The Timeline: Transfer to Cash in Hand

Here is what the entire process looks like from start to finish:

Total active time: about 45 minutes. The rest is waiting.

Most people spend longer thinking about selling their old phone than actually doing it. The transfer is fast, the wipe is fast, and TechLoop's quote process is fast. The only thing that costs you money is waiting.

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The Bottom Line

Transferring everything from your old iPhone to your new one is not the ordeal people imagine. Apple has made it genuinely seamless. Quick Start moves your entire digital life across in under 30 minutes, and you will not lose a single photo, message, or app.

The real cost is not the transfer itself. It is the delay. Every week your old iPhone sits around "just in case," it loses £2 to £4 in value. Over two months, that is a new pair of trainers you have thrown away for no reason.

Transfer your data. Verify it. Wipe the old phone. Sell it on TechLoop while it is still worth something. The price is locked for 7 days, the postage is free, and you get paid the same day. Your old iPhone has done its job. Let it earn you one final payout on the way out.