Shark HV322 vs HV370 vs HV371 vs Hv372 is there any difference between them?
These Shark Rocket Pro corded stick vacuum cleaners are almost the same except for the color and what tools included.

The HV322 is Burgundy/Grey, HV370 is Comet Red, HV371 HV372 are Fuchsia.

The Hv322 comes with a Duster Crevice Tool and a Pet Multi Tool, some packages may include a Storage Tool Clip;
the HV370 comes with a Pet Crevice Tool and a Pet Multi Tool;
the HV371 comes with a a Crevice Tool, an Upholstery Tool, an Anti-Allergen Dust Brush;
the HV372 comes with a Pet Crevice Tool, an Upholstery Tool, and a Home & Car Detail Kit for cleaning hard to reach and delicate areas in your car and home.

Some main features they have:
can be used as a stick or a handheld vacuum;
LED headlights on the nozzle and hand unit;
swivel steering;
handheld vacuum can be hanged from the base of the wand;
fungertip control;
removable dust cup for quick emptying.

For more info, read HV322, HV370, HV371, HV372 comparison table below:

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Let’s compare and find the difference between Shark HV300 series and HV320 series below.

The Shark Rocket HV320 series HV321 and HV322 are a little different from the Shark Rocket regular model HV300 series (HV300, HV301, HV301, HV300W, etc.)
According to Shark, the HV321, HV322 use superior carpet and bare floor cleaning that cleans better than the HV300 series.

Shark HV300 vs HV320
images from manufacturer

Here are some key difference between these Shark corded stick and handheld two in one vacuum cleaners:

LED Lights.

The Shark Rocket DeluxePro HV321, HV322 and Shark Rocket HV343AMZ have LED lights on the floor nozzle as well as hand unit, whereas the HV300 series, such as HV302, do not have any lights to illuminate dark spots.

Dust Cup Capacity
Another big difference is that the Shark HV320 series and the HV343Amz are equipped with larger dust cup that is 2X the capacity of that on the HV300 series.

Brushroll
The HV343AMZ features Self-Cleaning Brushroll which reduces hair tangled issues, while the Shark HV300 series and HV320 series do not use the self cleaning brushroll.

Color
The HV302 is Orange/Grey, the HV322 is Burgundy/Grey, the HV343AMZ is Blue/Grey.

Accessories
The included accessories vary from time to time, even for the same model. For example, the HV322 used to come with a bunch of tools: a Crevice Tool, Dusting Brush, Pet/Upholstery Tool, Hard Floor Genie with microfiber pad, on-board storage clip, TruePet Motorized Brush, Accessory Bag, and Wall Mount. But now, it may just comes with a Pet Multi-Tool and a Duster Crevice Tool. No tool clip for onboard tool storage, no wall mount for convenient storage, no accessory bag for keeping all the attachments in one place.

So, always check the “Includes” that printed on the box to make sure what tools are included.

To add more difference between Shark HV300 and HV320 series, you can reply below.