The diffrence between Shark APEX DuoCleean Powered Lift Away vacuum models AX950, AX951, AX952 are as follows.
The AX950 is sold at walmart, it is sage, comes with an Anti-Allergen Dust Brush, Pet Multi-Tool,Duster Crevice.
The AX951 is sold at macys, bestbuy, and amazon, it is sage, comes with an Anti-Allergen Dust Brush,Pet Multi-Tool,Duster Crevice,MultiFLEX Under-Appliance Wand,and an Accessory Bag.
The AX952 is sold at bed bath & beyond, kohl’s and Shark official site sharkclean.com, it is dark cyan, comes with an Anti-Allergen Dust Brush,Pet Multi-Tool,Duster Crevice, On-Board Deep Cleaning Motorized Pet Tool, and an Accessory Bag.

On sharkclean.com, the Anti-Allergen Dust Brush is priced at $29.95, Pet Multi-Tool is priced at $19.95, Duster Crevice price is $23.95, MultiFLEX Under-Appliance Wand price is $39.95, and the Deep-Cleaning Motorized Pet Tool is priced at $59.95.

Things you may want to know before buying the Shark APEX.
– Could the beater bar be turned off when cleaning hard floors?
No.
There is no control to turn it off. When set to Hard Floor mode, the brushroll spins slowly.

– Does the cord rewind automatically?
No.
You have to wind the cord manually after cleaning.

-Can you adjust the height of the brushbar?
You can use the surface selector to choose between 3 settings for cleaning different surfaces.

-What are the cleaning path?
11 inchs.

– What amps?
11.3 amps, 1350w

– Does it use bag?
No.
It’s bagless.