The Shark APEX DuoClean Powered Lift-away AX952 and Shark APEX DuoClean Powered Speed AX912 are similar items. The main difference between them is the size including the canister and the power.
The APED Speed AX912 is more compact, it has a smaller canister that holds up to 0.9 dry quarts versus 1.5 dry quarts on the APEX AX952.
The AX912 power specs are 120V,60Hz,900W,7.5A, while the AX952 are 120V,60Hz,1350W,7.5A.
The weight. Since the AX912 has a smaller size, it’s lighter, weighs about 14.8 lbs versus 16.3 lbs on the AX952
Another difference is that the AX912 has LED lights on the nozzle only while the AX952 has LED lights on the nozzle and also the wand handle.
One more difference is the power control button location. The AX912 has the control on the top of the vacuum pod while the AX952 has the control on the handle for easier reach.
The AX912 comes with a MultiFLEX Under-Appliance Wand, Anti-Allergen Dusting Brush, Pet Multi-Tool, and a Duster Crevice Tool.
While the AX952 comes with an Anti-Allergen Dust Brush,Pet Multi-Tool, Duster Crevice, On-Board Deep Cleaning Motorized Pet Tool, and an Accessory Bag.
The AX912 is terracotta while the AX952 is in dark cyan.
Any other difference you know? Please share below.