Torn between PowerDetect IP1251UKT and Blade 4 Classic Plus CLSV-B4CA for your next cordless vacuum?

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We examine the PowerDetect IP1251UKT – a battery-power vacuum by Shark, comparing runtime, dust tank, and costs, with – Blade 4 Classic Plus CLSV-B4CA by Vax, analysing real-world vacuuming performance.
By assessing these vacuums – the PowerDetect IP1251UKT and Blade 4 Classic Plus CLSV-B4CA from SHARK and VAX, you get the best floorcare machine.
Best Cordless Vacuum Pick
Best Buy: Shark PowerPro Cordless Stick Vacuum
Best cordless vacuum – Shark PowerPro – beating PowerDetect IP1251UKT and Blade 4 Classic Plus CLSV-B4CA on performance and value
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Get DealSHARK PowerDetect IP1251UKT vs VAX Blade 4 Classic Plus CLSV-B4CA – key Specifications
SHARK PowerDetect IP1251UKT Specs

- Product Brand: SHARK
- Cordless Vacuum Model: PowerDetect IP1251UKT
- Type of Vacuum: Stick
- Battery Life: 70 Minutes
- Dirt Tank Capacity: 0.7L
- Weight: 3.7KG
- Colour: Java Grey
- RRP: £499.99
VAX Blade 4 Classic Plus CLSV-B4CA Specs

- Product Brand: VAX
- Cordless Vacuum Model: Blade 4 Classic Plus CLSV-B4CA
- Type of Vacuum: Stick
- Battery Life: 45 Minutes
- Dirt Tank Capacity: 0.7L
- Weight: 3.1KG
- Colour: Graphite & Blue
- RRP: £149.00
PowerDetect IP1251UKT and Blade 4 Classic Plus CLSV-B4CA Cordless Battery Run Time
SHARK Stick cordless vacuums, like the PowerDetect IP1251UKT, provides lightweight portability without mains cables. Blade 4 Classic Plus CLSV-B4CA Stick is also cordlessly powered by a VAX rechargeable battery.
The Vax Blade 4 Classic Plus CLSV-B4CA has a battery supply runtime of 45 minutes of cleaning, compared to the Shark PowerDetect IP1251UKT which has 70 minutes life.
- SHARK PowerDetect IP1251UKT Runtime: 70 mins continuous vacuuming
- VAX Blade 4 Classic Plus CLSV-B4CA Runtime: 45 mins continuous vacuuming
Charging times between the PowerDetect IP1251UKT and Blade 4 Classic Plus CLSV-B4CA varies – check manual.
Cordless Vacuum Dust Tank Capacity
Both Shark PowerDetect IP1251UKT and Vax Blade 4 Classic Plus CLSV-B4CA are bagless, storing dust, hairs, dirt, and debris inside a sealed 0.7 litre and 0.7 litre tank, respectively. The Blade 4 Classic Plus CLSV-B4CA by VAX holds up to 0.7 Litre of compressed dirty particles. The PowerDetect IP1251UKT by SHARK has a capable capacity of 0.7 litre for manual disposable.
- PowerDetect IP1251UKT onboard dirt/dust tank size: 0.7L
- Blade 4 Classic Plus CLSV-B4CA onboard dirt/dust tank size: 0.7L
Floor Cleaning Types
Shark’s PowerDetect IP1251UKT and Vax’s Blade 4 Classic Plus CLSV-B4CA brush heads are effective on every surface – carpets & deep-pile rugs, hard floors (laminate, wood, tiles), vinyl, even upholstery, and stairs.
Their only limitation is the Blade 4 Classic Plus CLSV-B4CA and PowerDetect IP1251UKT can’t vacuum liquids. For this, a VAX or SHARK ‘wet and dry’ vacuum is needed.
Most Shark and Vax battery powered vacuums include accessories. Check PowerDetect IP1251UKT or Blade 4 Classic Plus CLSV-B4CA manual for specifications and attachments.
Vacuum Filtration
The Blade 4 Classic Plus CLSV-B4CA and SHARK PowerDetect IP1251UKT include effective filters to capture dust, dander, pollen, hairs, and fibres.
SHARK and VAX use HEPA, foam, or cloth, filters. PowerDetect IP1251UKT and Blade 4 Classic Plus CLSV-B4CA maintain suction and clean exhaust air.
VAX and SHARK Reviews
Combined feedback from 91 reviewers shows the PowerDetect IP1251UKT with a rating of 4.4/5 stars, and the Blade 4 Classic Plus CLSV-B4CA vacuum gains a 4.4/5 average from 1,440 reviews, showing comparable reliability results.
| Brand | Model | Runtime | Weight | Tank | Best Price |
| SHARK | PowerDetect IP1251UKT | 70 M | 3.7 | 0.7L | £499.99 |
| VAX | Blade 4 Classic Plus CLSV-B4CA | 45 M | 3.1 | 0.7L | £149.00 |
Best Buy: Shark PowerPro Cordless Stick Vacuum
Best cordless vacuum – Shark PowerPro – beating PowerDetect IP1251UKT and Blade 4 Classic Plus CLSV-B4CA on performance and value
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