If you ride both, you will find that there is some kind of drag on Activa 5G. There is something holding you back.
Suzuki Access 125 is freewheeling. It keeps going on freely.
Activa 5G is heavier at 109 kg. Access weighs 101-102kg.
Activa has a 110cc engine. Access has 125cc engine.
So Access is easily the better choice.