105 is a 2x2 mimo ap supporting up to 450mbps whereas a 135 is a 3x3 mimo ap supporting up to 450mbps.
it can handle more clients and can deliver more performance than a 105 can.
both of these APS are now in my opinion legacy and you should look at using either a 205 215 or 225 in your enterprise.
choosing which AP depends on your requirements.