Motorola 2015 phones sensors?

[AC Question]

I'm looking for a new phone to buy and I've currently shrinked my pick to this year's motorola phones (moto x pure/style, moto x play and moto g 3rd edition). upon inspecting some sites I saw that moto x play and g don't have an accelometer and one or two more sensors the pure/style has. the play still has the magnetometer which I suppose could be a replacement. Someone please tell me if this is real and if it is, does it have any impact on features that require orientation? and also, is the moto g affected by this (like not being able to do certain things)? and is the magnetometer something to compensate for the supposed lack of a gyroscope in the moto x play?