Basically every phone has GPS. If you can do maps navigation with it, it has GPS.
Location services on phones these days are however very complicated, using a fusion of data beyond GPS: cell towers, WIFI access points, etc. When apps use the platform's APIs, it will use a mix of these to provide location with the best power and accuracy trade-off it can do.
Also in some cases some of these can be more accurate than GPS, in particular when you are in a building and can't get a good GPS fix.
Basically every phone has GPS. If you can do maps navigation with it, it has GPS. Location services on phones these days are however very complicated, using a fusion of data beyond GPS: cell towers, WIFI access points, etc. When apps use the platform's APIs, it will use a mix of these to provide location with the best power and accuracy trade-off it can do. Also in some cases some of these can be more accurate than GPS, in particular when you are in a building and can't get a good GPS fix.
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