"Certain device locations, including specific geographic locations, such as through GPS, Bluetooth, or WiFi signals, are gathered if you enabled the functionality within your product configuration. Connection information such as the name of your mobile operator or ISP, browser type, language and time zone, mobile phone number, and IP address."
Sheetz collects precise location data through multiple methods including GPS, Bluetooth, and WiFi signals, plus IP-based geolocation. While they note users can disable location services, the breadth of tracking methods (GPS, Bluetooth, WiFi, IP) is extensive.