An apparatus for checking tyres has at least one check unit at least two consecutively placed check stations defining a check path such that each check station is traversed in one cycle time and by pitches by each tyre to be checked. Each check station includes: a support device for one tyre at a time housed in the respective check station, high-definition image acquisition systems of a surface of the tyre, and movement devices. The high-definition image acquisition systems have systems for acquiring high-definition two-dimensional and three-dimensional images. Only one of the at least two check stations has all the high-definition three-dimensional image acquisition systems of the check unit.