Play Zone
When the match starts PUBG Mobile defines the play zone with circles. There are two type of circles, blue circle and white circle. The blue circle determines the play area outside blue circle payers will take damage.

This circle shrinks up to white circle which determines the sent play area. Shrinking of the circle direct players to stay in the circle which increase encounters.

In PUBG Mobile PC players avoid staying blue circle and eventually killed. The last outside circle is so small that enemies get so closed that if they don’t attack they will be killed and even if they don’t engage get their enemies the circle lose down till it disappears and enemies will take effective damage and finely the player will more health stays alive and wins the match.