Selling or gifting a device: does the warranty go with it?

Remaining warranty adds real value to a device you are selling, and it is the first thing a careful buyer checks. Whether it actually transfers depends entirely on the manufacturer, and the three possible answers are quite different.

The three models

Transfers automatically. The warranty attaches to the device, identified by serial number, and runs from the original purchase date regardless of who owns it. Most consumer electronics warranties work this way in practice, because the manufacturer is tracking the serial rather than the person.

Transfers on request. Some manufacturers, particularly for business hardware and extended service contracts, require a transfer form naming the new owner. Skip it and the new owner may find coverage registered to someone else.

Does not transfer. Some warranties, and more commonly some paid protection plans, are explicitly non-transferable and end when the original purchaser sells the device.

Paid plans are where this bites hardest. A device warranty may transfer while the extended protection plan on it does not.

Before you hand a device over

Do these in order. Skipping any one of them creates a problem for the buyer that comes back to you.

1. Back up everything, then confirm the backup is complete and restorable.
2. Sign out of every account, especially the manufacturer’s — Apple Account, Google account, Samsung account, Microsoft account.
3. Disable activation lock or device protection. Find My iPhone, Find My Device, Samsung’s Find My Mobile. An activation-locked device is a brick to the buyer and cannot be serviced.
4. Factory reset, and where possible verify the device boots to the initial setup screen afterwards.
5. Remove the SIM and any storage card.
6. Deregister the device from your account on the manufacturer’s site if it appears there.

What to give the buyer

Providing these makes the device worth more and prevents disputes:

• The purchase date, and a copy of the order confirmation with personal details removed
• The serial number, so they can verify coverage themselves before paying
• Any repair records — a manufacturer repair history is a positive, not a negative
• Honest disclosure of any third-party repair, with the invoice

That last one matters. If the device has had an independent repair, say so. It does not void the remaining warranty on unrelated components under the Magnuson-Moss Warranty Act, but a buyer discovering it later will treat it as concealment.

Buying second-hand

Check three things before money changes hands.

The serial number on the manufacturer’s coverage checker. This is the only authoritative answer on warranty status.

That the device is not activation-locked. Ask the seller to factory reset it in front of you, or confirm it boots to the setup screen.

That it is not reported lost or stolen. For phones, an IMEI blacklist check tells you whether it can be activated on a network at all. A blacklisted phone is worthless as a phone.

If the seller resists any of these, that is your answer.

For more on what protection you get with used and refurbished devices, see our guide to refurbished and open-box warranties.