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.
I was so incredibly happy to find this! I have been looking for something that looks this great and fits all of my money, cards, and passport even...almost too good to be true but luckily it's true. :)