Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Great camera. We got one to keep an eye on our dog during the day. The subscription plan is reasonable when compared to other companies (like Arlo etc) and only needed if you want to have access to stored videos. Given the camera should cost a lot more the sub is very affordable. We have multiple ring cameras in our house and being able to pay one sub for access to all is good value. P