Difference between Sony EX and Sony NX While NX has a swivel and tilt, EX lacks in this feature. Power consumption in NX is 151 W, while it is 161 W in EX. Dimensions of NX are 1023X665X310mm, while dimensions of EX are 992X636X260mm. NX weighs 22.4 kg, while EX weighs 16.4 kg.