Used iPhone: what to look for before buying

A pre-owned iPhone is a way to get a powerful device at a significantly lower price than a new model. However, when buying a used phone, there are several things to check to avoid disappointment. We've compiled the key information to consider before purchasing a pre-owned iPhone.

1. Battery Health

The battery is the component that wears out the fastest. Before purchasing, be sure to ask for the battery capacity (Battery Health) — it should be at least 80-85%. At AIOO Store, we guarantee at least 80% battery capacity for every pre-owned iPhone, and we indicate this information with each product.

2. Functionality Check

A used phone may look flawless from the outside but hide problems with the screen, cameras, speaker, microphone, or Face ID. A reliable seller will test the phone against an extensive list of checks — at AIOO Store, each device undergoes 32 functionality tests before being put up for sale.

3. IMEI and iCloud Lock

Always check if the phone is not stolen and is not linked to someone else's Apple ID (iCloud Lock) — otherwise, it may be impossible to use after purchase. Reputable sellers guarantee that the device is "clean" and ready for immediate use with a new Apple ID.

4. Cosmetic Condition and Grade System

Used phones are usually divided into grades based on their appearance — from almost new (without visible scratches) to showing visible signs of wear. Make sure the seller clearly states the condition of the body and screen and provides real photos, not just stock images.

5. Warranty and Return Rights

A used phone should come with at least a short warranty period — this confirms the seller's confidence in the device's quality. AIOO Store offers a 12-month warranty on all pre-owned iPhone models, as well as a 14-day free return if the device does not meet expectations.

6. Is it Worth Selling Your Old iPhone?

If you have an old iPhone that you no longer use, you can sell it profitably or trade it in for a newer model. Learn more on our iPhone Buyback page.

Summary

When buying a pre-owned iPhone, check the battery health, functionality, IMEI status, and warranty conditions. All AIOO Store pre-owned iPhone models meet these criteria — check out the available range here.