Used and Refurbished Phones: Questions to Ask Before Buying

Why used and refurbished can make sense

A secondhand phone can cost noticeably less than a new one and keeps a working device out of the waste stream. It also carries more unknowns. The questions below help you reduce those unknowns. Many apply whether you buy from a retailer, a carrier, a marketplace or a private seller.

First, the terms. “Used” usually means the phone has been owned and is sold as is. “Refurbished” generally means it has been tested, repaired if needed and cleaned before resale. But the word is used loosely: the standard behind it depends on who does the work. Some refurbishers follow published grading and offer warranties, while others do little more than wipe the phone. Treat the label as the start of your questions, not the answer.

Questions about the seller and the deal

• Who is selling, and what is their reputation? Look for a business with a clear contact address and a record of reviews you can verify. Be cautious with prices far below the usual range, as they can signal stolen or faulty phones or fraud.
• What is the return policy? A return window gives you time to test everything. Find out who pays for return shipping and whether there is a restocking fee.
• Is there a warranty, and who honors it? A seller’s warranty is only as good as the seller. Our overview of device warranties explains what to read.
• What payment method protects you? Payments with buyer protection give you more options than cash or transfers to strangers.

Questions about condition

• How is the condition graded, and what does the grade mean? Terms like “good” or “excellent” differ by seller, so look for a written description and real photos of the actual phone, not stock images.
• Is the screen original? Replacement screens may differ in brightness or color, and some repairs can affect features like face or fingerprint unlock. Ask what parts have been replaced and with what quality.
• Are there signs of water damage? Water damage can cause problems weeks later. Some phones have indicators, but absence of a sign is not proof.
• Are all parts working? Plan to test cameras, speakers, microphones, buttons, charging port and sensors.
• What is included in the box? A charger or cable may not be included.

Questions about the battery

The battery is the most common weak point in used phones, because every battery loses capacity with age and charge cycles.

• What is the battery health? Many phones show a health or capacity figure in settings. Ask for it, and check it yourself on arrival.
• Has the battery been replaced? A new battery from a reputable source can be a good sign, while a low-quality replacement may be a poor one.
• How long does it last in real use? If you can, charge it fully and use it normally on the first day. Our guide to phone battery life shows what normal drain looks like, and battery chemistry explains why capacity falls over time.

Questions about locks and ownership

This is the most important section, since a phone that is locked cannot be used.

• Is the phone free of account locks? Many phones are tied to the previous owner’s account, which can leave the device unusable if not removed. Ask the seller to confirm the phone has been signed out and removed from their account, and check that you reach the normal setup screen when you power it on. Our guide to wiping old devices explains the steps a seller should have taken.
• Is it network unlocked? A carrier-locked phone works only with that carrier until it is unlocked. Ask whether it is unlocked and test with your own SIM.
• Is it reported lost or stolen, or still being paid off? Phones with an unpaid balance or a blocklist record can be blocked from networks. Many regions have a way to check a device’s identifying number, called an IMEI, so ask for it and check it before paying where possible.
• Does it work with your carrier’s network bands? Phones from other regions might not support all your local bands.

Questions about software and support

• What system version does it run, and will it receive updates? An older model may no longer get security patches, which is a risk, especially for banking and messaging. Check the manufacturer’s stated support period for that exact model. Our explanation of software updates covers why this matters.
• Is it running the original system, or something altered? Avoid phones with unofficial software if you do not understand what changed.
• Are replacement parts and repairs available? This affects how long you can keep it, as discussed in our right to repair guide.

What to check when it arrives

1. Inspect it against the description and photos.
2. Power it on and make sure you can set it up without hitting someone else’s account.
3. Check battery health, storage and system version in settings.
4. Test the screen for dead pixels and touch response, the cameras, speakers, microphone, charging and buttons.
5. Make a call and use mobile data with your SIM.
6. Update the system, turn on a screen lock and set up two-factor authentication on your accounts.

Do all of this inside the return window, and keep the packaging and receipts until you are satisfied.

Weighing the decision

A good used or refurbished phone can be excellent value, while a cheap one with a weak battery, short support and no warranty can end up costing more. Whenever the answers are unclear, or the seller will not answer them, walking away is a reasonable choice. If you need a broader view of what to prioritize, our smartphone checklist lists the main criteria.