The red dot sight in PUBG mobile focuses a dot on the player’s eyesight while the holographic projects a reticle hologram in front of your sight. So which is better? Lets first consider the size, the holographic is bigger in size and so takes more screen area when scoping than the Red dot. This is a demerit, especially when facing more than one enemy or if the area is congested. That is not the case with the Red dot since you still have a clear view of the surroundings.