Measure their exact weight
If you’re weird enough, you can use a weighing scale to precisely weigh your AirPods, and see if it matches your model’s actual weight. You can look up weights for each kind of AirPods in their respective specs section on the Apple site.
This one may sound a little crazy, but it’s pretty helpful since fake AirPods tend to weigh less. A series of CT scans done by Lumafield (via Yahoo News) on real and fake AirPods revealed that the fakes skimp on a lot of internal components that the Apple AirPods feature.
Lumafield’s Jon Bruner highlights “the lack of magnets, lower-quality plastic, and smaller batteries” in the fake ones and also mentions their significantly lighter weight. “To make up for the difference, their cases have weights,” he says.
