According to the data, it seems to have been used for 37 rounds. It has not been used on rainy days. The battery lasts for one round. There are scratches and band marks from use. Please understand that this is a used item. I downloaded the app and used it with my iPhone. Please see the reference images. I have a round planned soon, so I will continue to use it until it sells. The T-Ultra, equipped with a GPS navigation function, is the perfect smartwatch for golf rounds. - Model Name: T-Ultra - Brand Name: VOICE CADDIE - Included Items: Charging cable - Functions: GPS navigation function Thank you for viewing.