There 4 Maps that you can play in PUBG Mobile. Here is all maps guide:
Erangel Map Guide
Erangel: an 8x8 island map surrounded by water and 2 bridge connected to another island. With a lot of roads and towns for players to drop in and loot.
Miramar Map Guide
Miramar: an 8x8 desert map with higher and lower terrain good for sniping and long-range combat. With a variety of roads and huge cities for players to drop in and loot.
Sanhok Map Guide
Sanhok: A 4x4 map of 3 islands connected by bridges. A good map for pack action and mixed with close and long-range combat.
Vikendi Map Guide
Vikendi: A 6x6 snow map with a lot of towns and cities for players to drop in an start looting.