Phones can detect the unique IDs of nearby Wi-Fi networks. Databases of these known Wi-Fi locations help your phone figure out where it is, even when you aren't connected to them.
Mobile phone location is a powerful feature that allows your device to pinpoint where it is on Earth. This guide covers how it works, how to manage your privacy, and how to use it to find a lost device. mobile phone location
Your phone constantly communicates with nearby cell towers. By measuring the signal strength from multiple towers, the network can estimate your general location. Phones can detect the unique IDs of nearby Wi-Fi networks