Can’t decide between a DYSON and SHARK vacuum cleaner?
We’ve taken a close look at Dyson and Sharks best-selling flagship vacuum cleaners, using a combination of in-house data analysis software, and expert hands-on assessment – comparing the DYSON Detect Submarine with the SHARK PowerDetect, analysing features, specs, reliability, customer satisfaction, and performance metrics.
By comparing (V15s and IP3251UKT) – two leading vacuum cleaners by DYSON and SHARK, you can settle on the right floorcare brand. Better yet, jump directly to the best vacuum cleaner winner.
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Shark PowerPro Cordless Stick Vacuum Cleaner
Best cordless vacuum, beating all other DYSON and SHARK models on performance, reliability, and value for money
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Get DealDYSON Detect Submarine V15s vs SHARK PowerDetect IP3251UKT Comparison Points
DYSON V15s Specs

- Brand: DYSON
- Model: V15s
- Type: Cordless Upright
- Run Time: 60 Minutes
- Charge time: 4.5 Hours
- Power: 25.2V
- Tank Capacity: 0.76L
- Weight: 3.8kg
- Filter: HEPA + Washable
- Dimensions (cm): 124.6cm x 25.3cm x 26.6cm
- Colour: Yellow, Nickel
- Similar Cordless Models: Gen5detect, V12, V11, V8, V10
SHARK IP3251UKT Specs

- Brand: SHARK
- Model: IP3251UKT
- Type: Cordless Upright
- Run Time: 70 Minutes
- Charge time: 6 Hours
- Power: 21.6V
- Tank Capacity: 2L
- Weight: 3.70g
- Filter: HEPA + Washable
- Dimensions (cm): 117.7 cm x 26.3 cm x 47.2 cm
- Colour: Java, Purple, Grey
- Similar Cordless Models: IZ380UKT, IW4621UKT, IZ400UK, IP1251UKT, IZ380UK, IZ400UKT, IZ420UKT, WV361UK, ICZ300UKT, ICZ300UK, IZ300UKTPL, BU3521UK
We chose to compare the DYSON V15s with the SHARK IP3251UKT as these vacuum cleaners are like-for-like (high-end cordless models), providing a balanced comparison.
Here’s an overview of the DYSON Detect Submarine battery life runtime, re-charge duration, dirt tank holding capacity, vacuum filtration system, cleaning accessories, special features, and user feedback reviews, and how it stacks against the SHARK PowerDetect vacuum cleaner.
Shark PowerPro Cordless Stick Vacuum Cleaner
Best cordless vacuum, beating all other DYSON and SHARK models on performance, reliability, and value for money
Average Price: £249.99 Offers Available
Check DealDYSON and SHARK Battery Run Time
DYSON upright cordless vacuums, just like SHARK, offer lightweight portability without the need for power cables. Both the DYSON V15s Detect Submarine and SHARK IP3251UKT PowerDetect are powered using rechargeable Lithium-ion batteries.
The Shark PowerDetect has 70 minutes of vacuuming runtime, compared to the DYSON Detect Submarine which has 60 minutes – a difference of -10 minutes between vacuum cleaner brands.
- DYSON V15s Runtime: 60 mins continuous, running 25.2 volts
- SHARK IP3251UKT Runtime: 70 mins continuous, running 21.6 volts
How Long Does SHARK IP3251UKT and DYSON V15s take to charge?
The SHARK IP3251UKT has a re-charge time of 6 hours, compared to the DYSON V15s which takes 4.5 hours to fully charge, giving a -1.5 hours difference over each vacuum brand.
Shark vs Dyson Vacuum Dust Tank Capacity
Both Shark PowerDetect and Dyson Detect Submarine are bagless cordless vacuum cleaners, instead have an onboard storage tank where dust, dirt, hairs, and other debris are stored for post-vacuum disposal. PowerDetect by SHARK holds up to 2 Litre of dirt and dust, and the Detect Submarine by DYSON has an internal capacity of 0.76.
- DYSON Detect Submarine dust and dirt tank size: 0.76L
- SHARK PowerDetect dust and dirt tank size: 2L
Floor Cleaning Types
With specially designed brush heads, cordless vacuum cleaners such as the DYSON Detect Submarine and SHARK PowerDetect are suitable for vacuuming all floor types, soft or hard, including – carpet, deep pile fibres, rugs, vinyl, foam and rubber mats, upholstery, stairs, cork, or laminate, tile (Ceramic or Porcelain), wood, and stone. Making DYSON and SHARK vacuums ideal for use in all rooms of a home.
Although highly versatile, the SHARK IP3251UKT and DYSON V15s are not wet & dry vacuum cleaners, which is a different class of vacuum cleaner appliance. The DYSON Detect Submarine and SHARK PowerDetect should be used for dry vacuuming, unless specified otherwise in the user manual.
Most Dyson and Shark cordless battery powered vacuums comes with add-ons and accessories to enhance tricky cleaning jobs. For example, the DYSON V15s comes with Submarine wet roller head, fluffy optic cleaner, Hair Screw tool, Crevice tool, Combination tool, Docking station and the SHARK IP3251UKT includes Motorised Pet Tool, Multi-Surface Tool, Duster Crevice Tool, Auto-Empty Base system.
These Dyson and Shark models are also designed with the following unique cleaning features.
- DYSON V15s Special features: –
- SHARK IP3251UKT Special features: – Anti-Odour Tech, Anti-Hair Wrap, Complete Seal Anti-Allergen, Flexology, Power Detect Intelligence
What Filters to the DYSON V15s and SHARK IP3251UKT use?
Filters are a crucial component of Dyson and Shark vacuum cleaner systems, they capture fine dust particles, pet dander, pollen, and small carpet fibers, stopping them from being released back into the air, and damaging the motor.
The DYSON V15s Detect Submarine uses a HEPA + Washable and you’ll find a Washable, AED Anti Allergen in the SHARK IP3251UKT PowerDetect, both provide great dirt filtration, but they will require maintenance to reduce odours, and prevent loss of suction from clogging.
SHARK and DYSON Reviews and Ratings
Aggregate customer feedback from 2,910 reviewers across various platforms gives the DYSON V15s an average rating of 4.4/5 stars, while the SHARK IP3251UKT vacuum earns a 4.4/5 average based on 481 reviews.
Both DYSON and SHARK have established strong reputations for reliability and good cleaning results, which is reflected in the number of positive reviews. The cleaning performance of the DYSON Detect Submarine V15s and the SHARK PowerDetect IP3251UKT is similarly impressive, with each brand delivering comparable vacuuming results.
When it comes to performance and durability, the top vacuum models from DYSON and SHARK are nearly indistinguishable. Both the Detect Submarine V15s by SHARK and the PowerDetect IP3251UKT receive a high proportion of favourable customer feedback.
Choosing Between DYSON and SHARK stick upright vacuum cleaners.
It’s difficult to recommend the DYSON cordless vacuum over SHARK, because the margins between SHARK PowerDetect and DYSON Detect Submarine are modest, and buying preferences are down to minor differences such as features, accessories, runtime, filter type (for example, allergy sufferers), surface cleaning size, charging duration, budget and cost.
With that said, we can recommend the Shark PowerPro Cordless Vacuum Cleaner over the DYSON Detect Submarine and SHARK PowerDetect.
| Brand | Model | Runtime | Recharge | Weight | Tank | Best Price |
| DYSON | V15s | 60 M | 4.5 H | 3.8kg | 0.76L | Get Deals |
| SHARK | IP3251UKT | 70 M | 6 H | 3.70g | 2L | Get Deals |
What other types of DYSON and SHARK vacuum cleaners are available?
DYSON Vacuum Types
DYSON provides cordless vacuums and Robot, Cordled, Handheld, Cylinder
- Corded (upright mains): Animal Complete
- Robot: 360 Vis Nav
- Handheld: Car+Boat
- Cylinder: Big Ball Animal 2, Big Ball Multi Floor 2
SHARK Vacuum Types
SHARK provides cordless vacuums and Robot, Handheld, Corded
- Corded (upright mains): AZ3000UKT, NZ780UKT, NZ691UKT, NV602UK
- Robot: RV2800ZEF1UK, RV2800ZEUK, RV2800ZEUKWH, RV2800YEUK
- Handheld: CH950UKT, WV200UKCO, WV200UK, WV270UK
- Cylinder: —
Shark PowerPro Cordless Stick Vacuum Cleaner
Best cordless vacuum, surpassing all other DYSON and SHARK models in performance, reliability, and overall value.
Average Price: £249.99 Offers Available
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