Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
doesn't always work with the screen on the iPhone or iPad. Your hands need to be really really warm to work..... mine don't that is why I needed gloves. very disappointed. :(