
Quick Comparison: V7 vs V12 - Spec & Test Overview
| Test | Dyson V7 | Dyson V12 Detect | Category Avg. |
|---|---|---|---|
| Suction [Unsealed] (" of water lift) | 10.00 | 20.00 | 15.00 |
| Suction [Sealed] (" of water lift) | 39.00 | 60.00 | 49.50 |
| Airflow [Low] (CFM) | 26.28 | 24.00 | 25.14 |
| Airflow [Mid] (CFM) | 28.52 | 28.52 | |
| Airflow [High] (CFM) | 37.92 | 48.38 | 43.15 |
| Cleaning [Overall] (%) | 93.80 | 98.31 | 96.06 |
| Sand on Hard Floor (%) | 99.20 | 99.90 | 99.55 |
| Deep Cleaning (%) | 94.93 | 94.10 | 94.52 |
| Hair Pickup (%) | 88.16 | 89.44 | 88.80 |
| Run Time [Low] (mins) | 32:43 | 1:03:00 | 47:52 |
| Run Time [Mid] (mins) | 0:00 | 37:50 | 18:55 |
| Run Time [High] (mins) | 5:45 | 6:25 | 6:05 |
| Noise [Low] (dB) | 64.10 | 70.10 | 67.10 |
| Noise [Mid] (dB) | 72.50 | 72.50 | |
| Noise [High] (dB) | 73.90 | 80.70 | 77.30 |
| Fog Test | Heavy Leaks | Passed | |
| Adaptive Suction | No | Yes | |
| LED Headlights | No | Yes | |
| Battery | 2100 mAh | 2500 mAh | |
| Recharge (hrs) | 3.5 hrs | 3 hrs | |
| Dustbin Capacity | 0.53 liters | 0.35 liters | |
| Weight | 5.45 lbs | 5.2 lbs | |
| Warranty | 2 yrs | 2 yrs |
Water Lift: Measures suction power in inches of water using a water lift gauge (+ Y-gauge). The higher the number, the stronger the vacuum’s raw suction.
CFM (Cubic Feet per Minute): Measures airflow, or how much air the vacuum moves per minute. A higher CFM generally indicates stronger suction and better cleaning performance.
dB (Decibels):: Represents the vacuum’s noise level. A lower dB value means quieter operation.
Hair Pick-Up:: The average amount of hair collected from both hard floors and carpets during tests.
Cleaning Performance: The overall average of debris (including Quaker Oats, Quinoa, Coffee Grounds, Pet Litter, and Sand) picked up across hard floors, as well as low- and mid-pile carpets.
Sand on Hard Floor: The average amount of sand removed from a bare floor surface during testing.
Fog Test: An experiment that checks the vacuum’s seal and filtration system by introducing fog into the dustbin. A properly sealed vacuum should keep the fog contained inside.
LED Headlights: Lights on the cleaning nozzle that illuminate dust and debris, making dirt easier to see in dark areas like under furniture.
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Continuing my series on Dyson vacuums, we’ll examine the V7 Motorhead and V12 Detect – two similar yet vastly different options at opposite ends of the price spectrum.
The V7 MotorHead, with the release of the latest Dyson products, is one of the most affordable options, while the V12 Detect falls in the upper mid-range.
Both are lightweight, versatile two-in-one stick vacuums, but the similarities end there.
The V12 Detect has all the Dyson bells and whistles, albeit in a smaller package, focusing more on ergonomics than power, whereas the V7 uses manual switches without a screen.
Which option is better? I’ve put both through a grueling series of tests to find out.
Introduction to the Dyson V7 and V12 Detect
Ever since Dyson unveiled the V10, most of the focus has been on power and cleaning performance, culminating in the soon-to-be-released Gen5 Detect, but there were a few detours along the way, including the V12 Detect.
This variant is Dyson’s lightest of their latest “full-sized” options, utilizing a smaller motor, dustbin, and battery, improving its ergonomic feel over hulking V15 and Gen5 Detect models.
But before the V12, Dyson already had another lightweight option: the V7 MotorHead.
This model was released after the V8 as a cheaper alternative to the (then) top-of-the-line V8 Absolute with a smaller motor and battery – similar to what the V12 is to the V15. But the latter’s weight reduction was more dramatic.
Basic Features: Dyson V7 MotorHead

Pros
- A cheaper option than the V12
- The lightweight body is superb as a handheld option
- A non-complicated hygienic mechanism that’s straightforward to use
- Lots of sub-models for diverse consumer needs
- Larger dustbin than the V12
Cons
- The MotorHead option leaked badly during the fog test
- No Fluffy attachment (at least for this variant)
- Limited tools included
- Small dustbin
The Dyson V7 is as bare as they come —at least by current Dyson standards. It’s one of the last of the previous-generation cordless stick vacuums, with a vertically aligned dustbin, a trigger, and a slide switch that was grandfathered into the Dyson V10.
One benefit of the vertically aligned dustbin is its compactness, making it lightweight, but at the cost of dirt volume, since adding significant capacity makes it look awkward.

That’s why Dyson shifted to a horizontally aligned container in its latest products, namely the V10 to V15 Detect.
The model I have is the MotorHead – one of the cheaper alternatives, but it doesn’t have a post-motor filter, so it leaked badly during the fog test.
It doesn’t have an interactive screen or the middle setting in the V12, so there’s no middle-ground power option to balance run time and suction.
Also, it uses a smaller battery (only 2100 mAh). Thus, the range is limited to around 32 minutes – still in line with Dyson’s 30-minute claim.
Unfortunately, the V7 battery doesn’t have a quick-release latch. Purchasing an extra battery to extend the run time is not practical.
Variants like the MotorHead only come with a standard brush roll, limiting them to cleaning carpets.

It can vacuum hard floors, but not as efficiently as a Fluffy tool.
However, there are sub-models with the soft roller tool, so potential buyers should carefully look at what’s available.
Also, don’t expect much from the tools – it doesn’t have much.

- Standard nozzle
- Crevice tool
- Combination tool
- Wall dock
- Extension tube
Fortunately, Dyson tools (except for the V12, Micro, and Omni-Glide) are interchangeable and widely available. Consumers could purchase specific tools, even ones for the V15, that will fit on the V7.
The Dyson V7 is a decent option with decent cleaning performance, minus the bells and whistles, so it’s cheaper than the V12.
It’s a good cheaper alternative for consumers who don’t mind its run time, power, and feature limitations.
Feature-Rich: Dyson V12 Detect

Pros
- It possesses most of Dyson’s latest tech
- Lightweight version of the V15 Detect
- Green laser accentuates dust particles better than any stick vacuum I’ve tested
- Push-button power switch
- Some variants come with two detachable batteries
- Fully-sealed system
- Lots of tools out of the box
- It has the torque screw tool attachment, which is excellent at cleaning long hair
Cons
- More expensive
- Smaller dustbin
- Noisy
Before testing it, I thought the V12 Detect was only a variation of the V15 Detect with a push-button switch, but I was mistaken.
The V12 is a smaller version of the V15, filling a gap in its product line—a lightweight stick vacuum.

The photo above shows the massive size difference between the V12 and V15.
And the weight variance is significant, making V12 much better in terms of ergonomics.
Another plus for the V12 is that it possesses all of V15’s tech, including the laser slim roller, Piezo sensor, and torque screw tool, but at a lower cost.
Again, it’s a smaller version of the V15 Detect without the bulk.
Unfortunately, it’s not all roses for the V12. The reduced bulk means it holds less dirt, is less powerful, and won’t run as long.
These are unavoidable consequences of downsizing the frame.
Don’t expect V15-level cleaning performance, especially on carpet, but on hard floors it’s excellent thanks to the laser slim roller attachment.

The bright green laser accentuates dust particles (really) as they pop, making it easy to track.
Another inherited feature is the Piezo sensor, which displays the debris quantity picked up on the LCD screen.

It’s the same as the V15, but with a red button. Underneath the Piezo readout is the run time status.
Other features inherited from the V15 are the torque screw tool and detachable battery.
The torque screw tool is a recent Dyson innovation with a tapered brush roll, helping untangle long strands and funneling them into a holding area and then into the dustbin.
Even with this much hair, nothing was wrapped around the brush.

It’s one of the best tools I’ve tested at cleaning (really) long hair strands on upholstery.

Despite the battery downgrade, the runtime is (still) excellent, exceeding 60 minutes with the slim roller tool and doubling to over 120 minutes with two batteries.
The Dyson V12 represents a significant upgrade over the V7 in every facet, but these enhancements won’t be cheap.
Are you willing to spend on these? Answering this will determine your choice.
Similarities between the Dyson V7 and V12 Detect
Next, we’ll look at the similarities between these products, starting with their versatility.
1. Two-in-one Versatility
Both are versatile options in different configurations, such as handheld and stick vacuums.
One advantage of the V12 is that it has more tool options out of the box, and consumers can use it in more layouts – even for cleaning underneath furniture.
Always check the inclusions before purchasing any V7 or V12 model.
2. Hygienic System

Another similarity is the hygienic system, which has a mechanism to push debris out of the container.

It’s a staple with all Dyson products, starting with the V8, and every variant released after has it.
However, one issue is hair sticking on the inner walls of the dustbin, and this isn’t a Dyson problem but a universal one across different brands.
Differences between the Dyson V7 and V12 Detect
Next, we’ll look at the variances —there are plenty.
1. Dustbin
The obvious one is the dustbin alignment—look at the photo below.

Even with the downsizing, the V12 retains the horizontally aligned dustbin, while the V7 has a vertically aligned container.
Though the V12 container looks bigger, it holds less (0.35 vs. 0.53 liters), so the V7 has the advantage with dirt volume.
2. Power Switch
Another variance is the power switch: the V7 uses a trigger, while the V12 has a push-button switch above the motor, so consumers don’t have to continually squeeze a trigger.

3. Suction Levels and Control

Accessing different power settings is different between the V7 and V12.
The V7 uses a more traditional slide switch to toggle between two settings, while the V12 has a red button underneath the interactive screen for the same purpose.

4. Battery
Only the Dyson V12 Detect has a detachable battery, and some sub-variants come with two batteries and chargers, enabling folks to charge both simultaneously.

Unfortunately, the V7 doesn’t have a detachable battery, and consumers need to remove some bolts to remove it.
5. Filters
From the V10 onwards, all Dyson cordless vacuum products use a single filter behind the motor where the pre- and post-motor elements are fused.

The V12 used the same filter design as the other next-generation Dyson products and didn’t leak during the fog test.

The V7, at least the MotorHead variant, only has one filter – the primary one sitting in the middle of the cyclones.

It doesn’t have a post-motor HEPA filter. Thus, it leaked during the fog test.

Allergy sufferers can opt for other variants with a post-motor filter like the “Allergy” model, but these will be costlier – just an FYI.
6. Nozzles
There will be variations with the nozzles included out of the box, particularly with the V7.
The V12 Detect I purchased (the Slim Absolute Extra) comes with two – the laser slim roller and standard brush roll similar to the Dyson V8, while the V7 MotorHead only has the standard brush roll.

Here’s a close-up of the Dyson V7 Motorhead attachment.

These nozzles are similar in size and brush design, so there’s not much variance in cleaning performance.

Ergonomic Comparison
There isn’t much variance in the handheld weight between the V7 and V12.
The V7 is (actually) lighter than the V12 Detect by a few ounces.

It weighs only 3 pounds and 0.4 ounces without any tools, while the V12 is a touch heavier at 3 pounds and 4 ounces, giving the V7 the edge in ergonomics in any configuration.

One advantage of the V12 is the push-button switch, so there’s no trigger to squeeze, which can be helpful in specific tasks (particularly above floors).
Interface Comparison
The Dyson V12 Detect is better in this category because its interactive screen displays the Piezo readout and runtime status.

It’s similar to the V15 Detect, but with a (slightly) smaller screen and variation with the button shape (and color).
The Dyson V7 has no screen; it only has an LED indicator at the base for its status.

It’ll flash when the battery is low, but there’s no way of knowing how much is left because it’s a single LED setup.
Run Time Comparison
One potential deciding factor between the V7 and V12 is the range (or run time), where the V12 has a considerable edge because it uses the latest Dyson battery technology.
| Model | Eco | Mid/Auto | Boost |
|---|---|---|---|
| Dyson V7 MotorHead | |||
| Non-powered | 32:43 mins. | N/A | 5:45 mins |
| Cleaning nozzle | 27:58 mins. | N/A | 7:07 mins |
| Dyson V12 Detect | |||
| Hard floor | 63:00 mins. | 37:50 mins. | N/A |
| Carpet | 42:00 mins. | 27:31 mins. | 6:25 mins. |
The V12 advantage is two-fold. First, it runs nearly twice as long as the V7 with the slim roller attachment (63 vs. 32 mins.) and nearly quadruples it for variants with two batteries.
Second, it has the auto setting absent in the V7, balancing runtime and suction, which is most helpful on carpeted surfaces.
The V7, with its smaller battery, isn’t designed for extended range but rather for tiny homes and spot cleaning.
Airflow Comparison
| Model | Eco | Mid/Auto | Boost |
|---|---|---|---|
| Dyson V7 MotorHead | |||
| Wand | 29.64 CFM | N/A | 49.68 CFM |
| Cleaning Head | 26.28 CFM | N/A | 37.92 CFM |
| Dyson V12 Detect | |||
| Wand | 27.43 CFM | 32.23 CFM | 58.74 CFM |
| Cleaning Head | 24 CFM | 28.52 CFM | 48.38 CFM |
Surprisingly, there isn’t much variance between the V7 and V12 in the lowest setting. The V7 (actually) has more in this setting (26 vs. 24 CFM), but the variance isn’t much.
However, the V12 has more airflow at the max setting and an auto setting that increases suction when it detects more debris via the Piezo sensor.
The V7 doesn’t have this setting; consumers must use the max setting to clean embedded dirt on carpets, significantly cutting the run time.
An auto setting also preserves battery service life because it generates less heat.
Cleaning Comparison
| Model | Dyson V7 MotorHead | Dyson V12 Detect |
|---|---|---|
| Overall | 93.8% | 98.31% |
| Hard Floors (Surface Test) | 81.75% | 99.8% |
| Sand on Hard Floor | 99.2% | 99.9% |
| Carpet (Surface Test) | 99.97% | 99.45% |
| Deep Cleaning | 94.93% | 94.1% |
There isn’t much variance with the cleaning performance of these products, at least on carpets.
But the V12 Detect picked up more debris on hard floors thanks to the slim roller nozzle.
One reason is that the soft roller tool is more efficient at debris pick-up on this surface than V7 since the latter doesn’t have the Fluffy attachment.
It shouldn’t be a deal breaker since consumers can purchase a soft roller (if needed).
Which option is better on hard floors?
The latter is better between the V7 MotorHead and V12 Detect, as it has a slim roller nozzle—a more efficient tool for hard floors.
It picked up more sand on this surface, an indicator of hard-floor cleaning performance.

Surprisingly, even without the Fluffy tool, the V7 was decent at cleaning sand (99.2%).

Nonetheless, the V12’s other features make it more functional, such as the green laser—one of the best at accentuating almost-invisible dust particles, even in dark areas.
This feature is absent in the V7, though the V15’s laser slim roller will fit in the V7, so it’s another option once it’s available.
Edge Cleaning Comparison
There’s not much variance with the V7 and V12 cleaning edges. Both were proficient at cleaning this area.
The V7 was excellent even at cleaning pet litter, getting most of it.

Likewise, the V12 only needed a few passes to clean this area.

Hair Wrap Comparison [Hard Floors]
One of the biggest surprises in this comparison is the hair wrap test, where the V7 MotorHead was unexpectedly good despite not having an active anti-tangle system.

- 5-inch strands: 100%
- 7-inch strands: 99%
- 9-inch strands: 100%
- 11-inch strands: 88%
- 12-inch strands: 88%
It achieved a high percentage even on longer strands (nine inches or more). Another advantage of this variant is that the hair doesn’t wrap around the axles since there’s no gap.
The Dyson V12 also performed excellently across all experiments, picking up between 92% and 100%, even with 13-inch hair.

- 5-inch strands: 96%
- 7-inch strands: 100%
- 9-inch strands: 92.5%
- 11-inch strands: 98%
- 13-inch strands: 100%
One issue with the V12 is the gap on the axle, which is a hair wrap magnet.

You can see in the photo above that there’s a noticeable gap, and removing hair can be tedious.
Which option is better on carpets?
Another surprise in this comparison is how close these Dyson cordless vacuums are to cleaning carpets.
There isn’t much variance with the surface debris experiments (99.97% vs. 99.45%), with the advantage going to the V7.
Even with deep cleaning, the V7 got a (slightly) higher average (94.93% vs. 94.1%).
One reason could be the seal behind the brush roll—the V7 uses a felt seal, while the V12 uses a rubber squeegee.
Hair Wrap Comparison [on Carpets]
Not surprisingly, the V12 Detect is the better choice for cleaning hair from carpets, thanks to its higher airflow at the auto and max settings.
It was excellent, even with nine-inch strands, but it struggled with eleven-inch hair, picking up only 30%.

- 5-inch strands: 96%
- 7-inch strands: 100%
- 9-inch strands: 92.5%
- 11-inch strands: 30%
The Dyson V7 is a notch lower than the V12, only picking up a high percentage with five and seven-inch hair, but not as good with nine-inch strands.

- 5-inch strands: 100%
- 7-inch strands: 99%
- 9-inch strands: 38%
Please note that neither of these options has an active anti-tangle system, so I wouldn’t recommend any for cleaning large quantities of hair.
Noise Comparison
| Model | Dyson V7 MotorHead | Dyson V12 Detect |
|---|---|---|
| Low | 64.1 dB | 70.1 dB |
| Auto/Mid | N/A | 72.5 dB |
| Max | 73.9 dB | 80.7 dB |
The Dyson V12, with its more powerful motor, is predictably noisier, exceeding 80 decibels in the max setting, compared to the V7, which only maxed at 73.9 dB.
Related Dyson Comparisons
- Dyson V7 vs. Outsize – Lightweight or Upright-Like Capacity
- Dyson V7 vs. V10
- Dyson V8 vs. V10 – Much Closer Than You Think
- Dyson V10 vs. V11 Comparison
- Dyson V12 Detect vs. V10 Absolute
- Dyson V12 Detect vs. Outsize
- Dyson V12 vs. V8
Maintenance
Like most Dyson products, the V7 and V12 need TLC to function efficiently for years. Consumers will spend a few hundred dollars on these stick vacuums, so it makes sense to maintain them to ensure longevity.
I’ll enumerate the components you need to clean and the recommended intervals.
Click here to access all the Dyson maintenance tips articles.
- Primary brush rolls: Clean the nozzles to remove hair and dust accumulation on the brush and axles. Dyson brushes are detachable, making this task easier.
- Dustbin: Empty the trash container after every cleaning cycle to prevent performance degradation and the external filter from clogging and dust mites from breeding.
- Filter: Dyson recommends washing the filter monthly under running water without any detergents to maintain suction performance.
- Battery: Avoid using the max setting for extended stretches to avoid overheating the battery and cutting short its service life.
Product Specifications
Where can I buy the Dyson V7 and V12 Detect?
These Dyson cordless stick vacuums are available in online stores like Amazon. Check the links below for the latest pricing information.
Disclaimer: I’ll earn a commission if you purchase through any of the links above, but at no extra cost, so it’s a win for us!
Which Offers the Better Value?
Given the price difference, I’d lean towards the V12 Detect because it offers all the latest V15 tech in a more compact package.
While it doesn’t clean as well as the V15 Detect, folks will enjoy most of its benefits, and the cleaning variance isn’t that much, particularly with surface debris.
Only select V7 variants like the MotorHead is significantly cheaper than the V12, but the price variance of models with the post-motor filter isn’t much.
4 Reasons to Choose the Dyson V7
- Cheaper: The V7 MotorHead is much cheaper than the V12 Detect.
- Larger dustbin: Surprisingly, this model has a larger capacity dustbin (0.53 vs. 0.35 liters) even with the vertically aligned container.
- Not as noisy: The weaker motor means it won’t be as loud.
- Better ergonomics: Its lighter frame gives it a (slight) advantage with ergonomics.
- Above-average cleaning: Another surprise with the V7 is its higher carpet cleaning test scores.
5 Reasons to Choose the Dyson V12 Detect
- Latest Dyson tech: The V12 possesses most of the V15’s features but in a compact frame.
- Tracks dust: This variant is perhaps the best cordless stick vacuum I’ve tested at tracking almost-invisible dust, even in dark areas.
- More tools: Consumers will get more tools out of the box, including the latest attachments like the torque screw tool.
- Runs further: Dyson’s latest battery used in the V12 Detect is more energy-dense, enabling it to run longer.
- Detachable battery: The quick-release latch makes it easy to remove the battery. Variants with two batteries also have two chargers.
The Verdict: The Dyson V12 is the Better Option
Despite the price difference, the Dyson V12 offers better value given what you get out of the box.
Consumers will enjoy the benefit of Dyson’s latest technology, including the laser slim roller, Piezo sensor, and torque screw tool, enabling consumers to vacuum their homes more efficiently.
The Dyson V7 is a decent option, but its features are dated, and options with the post-motor HEPA filter aren’t far off the V12 (prices, specifically), which is a deal-breaker for me.