Buying a used smartphone on eBay is one of the easiest ways to get a recent iPhone or Android phone for less, but phones carry risks that other gadgets do not: carrier locks, blacklisted IMEIs and account locks can turn a working phone into a paperweight. Check those three things plus battery health, and you avoid almost every bad outcome.
Quick answer: Choose an unlocked phone (or one locked to your own carrier), ask for the IMEI and make sure it is not reported lost or stolen, confirm iCloud Activation Lock or Google Factory Reset Protection has been removed, and check battery health in the listing or with the seller. Pay through eBay checkout and test calls, data, cameras and charging as soon as the phone arrives.
1. Pick the right listing type
- eBay Refurbished: Phones graded Certified, Excellent, Very Good or Good, with a warranty and a return window. See our guide to eBay Refurbished grades.
- Used from a high-volume seller: Often well-described with consistent grading and returns.
- Used from an individual: Can be great value, but ask more questions and test carefully.
- For parts or not working: Only for repair projects; shorter reporting windows and limited protection.
2. Carrier lock and network compatibility
A phone that is locked to another carrier will not accept your SIM or eSIM.
- Look for “Unlocked” in the item specifics. “Locked to” a named carrier only works with that carrier unless it is unlocked later.
- Check eSIM vs physical SIM: Some recent US iPhone models are eSIM only. Make sure your carrier supports eSIM activation for your plan.
- Check the model number: International versions may lack some bands used by US or Canadian carriers, which can affect coverage, 5G or calling.
- Ask about financing: A phone still under a financing contract can be blocked by the original carrier if payments stop.
3. IMEI: the phone’s identity check
Every phone has an IMEI number. Dialling *#06# displays it, and it also appears in the phone’s settings.
- Ask the seller for the IMEI or a photo of the settings screen showing it.
- Many carriers and industry tools let you check whether a device is reported lost or stolen. A blacklisted IMEI may be blocked from networks.
- When the phone arrives, compare the IMEI in settings with the one in the listing and the SIM tray or box.
- A seller who refuses to share the IMEI on a high-value phone is a reason to walk away.
4. Account locks: iCloud and Google FRP
This is the most important check of all.
- iPhone Activation Lock: If Find My was not turned off, the phone asks for the previous owner’s Apple Account after a reset. It cannot be bypassed legitimately without the owner.
- Android Factory Reset Protection (FRP): After a reset, many Android phones ask for the Google account previously used on the device. Some brands add their own lock, such as a manufacturer account reactivation lock.
- What to ask: “Has the phone been signed out of all accounts and reset to factory settings?”
- On arrival: The phone should start at the setup screen and let you sign in with your own account.
- If a lock appears, contact the seller through eBay Messages and open an “item not as described” request if it is not resolved. Do not use unofficial unlocking services.
5. Battery health
Batteries wear with use, and a weak battery makes a good phone frustrating.
- iPhone: The Battery section in Settings shows maximum capacity and, on newer models, cycle count.
- Android: Battery information varies by brand. Some recent models show health in settings or in the manufacturer’s support app.
- Listings: Many refurbishers state a minimum battery capacity or mention a replaced battery. Check the description.
- Replacement notice: On some iPhones, a battery replaced with a non-genuine part triggers a notice in settings. It does not mean the phone is bad, but it is worth knowing before you buy.
6. Quick comparison of key checks
| Check | Why it matters | How to verify |
|---|---|---|
| Unlocked status | Works with your carrier | Item specifics, insert your SIM or eSIM on arrival |
| IMEI clean | Not blocked as lost or stolen | Ask for IMEI, check with your carrier, compare on arrival |
| Activation Lock / FRP off | You can set it up as yours | Phone reaches the setup screen and accepts your account |
| Battery health | Daily runtime | Listing details, settings screen, seller screenshot |
| Screen and Face ID / fingerprint | Expensive to repair | Test touch everywhere, biometrics, True Tone or brightness |
| Cameras and microphones | Common hidden faults | Photos and video on every lens, voice memo, speakerphone call |
7. Test the phone on arrival
- Check for cracks, lifted screens or a swollen back.
- Insert your SIM or add your eSIM, make a call and use mobile data.
- Test Wi-Fi, Bluetooth and GPS.
- Try every camera, the flash and video recording with sound.
- Check Face ID or fingerprint, buttons, vibration, speakers and charging port.
- Check for parts messages in settings on recent iPhones.
- Look at battery health and how quickly the battery drains.
If anything fails, open a request from your Purchases page within the reporting window and attach photos or screenshots.
8. Red flags in phone listings
- Stock photos only, with a price far below similar listings.
- Phrases like “iCloud locked”, “needs passcode”, “blacklisted” or “bad ESN”, sometimes hidden in the description.
- “Unlocked” in the title but “locked to” a carrier in the item specifics.
- A seller who wants to finish the deal outside eBay.
For broader precautions, see our eBay safety checklist. Browse unlocked refurbished iPhone listings on eBay or see current unlocked Samsung Galaxy listings on eBay.
FAQ
How do I know a used phone on eBay is not stolen?
Ask for the IMEI, check it with your carrier or a reputable checking service, and compare it with the phone on arrival. Buying from sellers with strong feedback and clear photos also reduces risk.
What if the phone arrives with iCloud or Google lock on?
Ask the seller to remove it through eBay Messages. If they do not, open an “item not as described” request from your Purchases page, as a locked phone does not match a listing for a usable device.
Will a US unlocked phone work in Canada?
Often yes, but check the model’s supported bands and your carrier’s compatibility, including eSIM support. Some models are better suited to one country’s networks.
What battery health should I look for?
There is no universal minimum. Higher maximum capacity means longer runtime; many refurbishers state a minimum level in the listing, so compare those details between sellers.
Is a refurbished phone better than a used one?
A program refurbished phone usually comes with grading, a warranty and free returns, which a regular used listing may not. The price is often slightly higher in exchange.
Bottom line
A great used smartphone deal on eBay comes down to five checks: unlocked, clean IMEI, no account lock, healthy battery and a seller with a good record. Get the key details in writing, pay through checkout and test everything as soon as the phone arrives.
Disclosure: tikto.store is an independent guide and an eBay Partner Network affiliate. We may earn a commission when you buy through our links, at no extra cost to you. tikto.store is not eBay and is not affiliated with eBay Inc. beyond the affiliate program.