When buying a new or used iPhone, you can often run into a fake. Such devices look similar to the original, but, except for the motherboard, they have nothing in common with Apple products.
Housing. Pay attention to connectors, cheap materials, uneven and poorly readable labels, or inconsistencies in technical information for the phone region. The iPhone case should be high-quality in appearance and touch. Crunch, crackle, backlash — these are clear signs of forgery.
Display. An unoriginal screen may protrude from the body or fit loosely, the image has more faded colors, poor resolution, the sensor may slow down, and the picture may twitch. Most non-original displays do not have True Tone technology.
Details. The flash and charging socket should not bulge or be depressed too much. The volume up buttons must exactly match the color of the case (as well as all bolts). Also pay attention to the box from the iPhone (if there is one). There should be no traces of glue on it, printing and fonts can not be blurred.
IMEI. Each iPhone has a 15-digit ID-it is registered on the SIM card tray, on the box, as well as in the “Settings” menu (“General” -> “About this device”). These numbers should be the same everywhere. On the Apple website, you should check whether the IMEI corresponds to a specific model, and on other services, look for color matching, technical characteristics.