Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
They look cute but dont charge well. My phone even popped up with a message telling me to completely plug everything in even though everything was completely plugged in. And it made my husband's whole phone heat up really hot. You'd better off get a more quality single charging brick than 3 of these. I'm returning them and doing just that.