Check the charger
The charger should be adapted for use in your country. If you live in Europe, there should be a special block for European sockets. If you’re asked to buy an adapter or even a separate charger, that’s a warning sign.
Brand chargers won’t have seams between plastic parts of different colors, which can’t be said of fakes. Remember, brands are responsible for your safety when using their gadgets. That’s why originals always have neat metal tips and quality insulation and finishes.
Take a closer look at wires and plugs
Wire quality is one of the most obvious signs of a counterfeit product. In the original, a plugged-in cable will sit firmly and evenly, while in a fake you’ll see incorrect angles and loose parts. Sometimes the length of a plug doesn’t coincide with the depth of the socket.
Also, pay attention to the quality of the insulation and the symbols on it. The wire should be flexible and even-colored, while the markings mustn’t be erasable.