Torn between DuoFlex HX1 Extra and Blade 4 Classic Plus CLSV-B4CA for your next cordless vacuum?

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We examine the DuoFlex HX1 Extra – a battery-power vacuum by Miele, 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 DuoFlex HX1 Extra and Blade 4 Classic Plus CLSV-B4CA from MIELE and VAX, you get the best floorcare machine.
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Get DealMIELE DuoFlex HX1 Extra vs VAX Blade 4 Classic Plus CLSV-B4CA – key Specifications
MIELE DuoFlex HX1 Extra Specs

- Product Brand: MIELE
- Cordless Vacuum Model: DuoFlex HX1 Extra
- Type of Vacuum: Stick
- Battery Life: 55 Minutes
- Dirt Tank Capacity: 0.3L
- Weight: 3.1KG
- Colour: Lotus White
- RRP: £299.00
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
DuoFlex HX1 Extra and Blade 4 Classic Plus CLSV-B4CA Cordless Battery Run Time
MIELE Stick cordless vacuums, like the DuoFlex HX1 Extra, 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 Miele DuoFlex HX1 Extra which has 55 minutes life.
- MIELE DuoFlex HX1 Extra Runtime: 55 mins continuous vacuuming
- VAX Blade 4 Classic Plus CLSV-B4CA Runtime: 45 mins continuous vacuuming
Charging times between the DuoFlex HX1 Extra and Blade 4 Classic Plus CLSV-B4CA varies – check manual.
Cordless Vacuum Dust Tank Capacity
Both Miele DuoFlex HX1 Extra and Vax Blade 4 Classic Plus CLSV-B4CA are bagless, storing dust, hairs, dirt, and debris inside a sealed 0.3 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 DuoFlex HX1 Extra by MIELE has a capable capacity of 0.3 litre for manual disposable.
- DuoFlex HX1 Extra onboard dirt/dust tank size: 0.3L
- Blade 4 Classic Plus CLSV-B4CA onboard dirt/dust tank size: 0.7L
Floor Cleaning Types
Miele’s DuoFlex HX1 Extra 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 DuoFlex HX1 Extra can’t vacuum liquids. For this, a VAX or MIELE ‘wet and dry’ vacuum is needed.
Most Miele and Vax battery powered vacuums include accessories. Check DuoFlex HX1 Extra or Blade 4 Classic Plus CLSV-B4CA manual for specifications and attachments.
Vacuum Filtration
The Blade 4 Classic Plus CLSV-B4CA and MIELE DuoFlex HX1 Extra include effective filters to capture dust, dander, pollen, hairs, and fibres.
MIELE and VAX use HEPA, foam, or cloth, filters. DuoFlex HX1 Extra and Blade 4 Classic Plus CLSV-B4CA maintain suction and clean exhaust air.
VAX and MIELE Reviews
Combined feedback from 31 reviewers shows the DuoFlex HX1 Extra with a rating of 4.8/5 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 |
| MIELE | DuoFlex HX1 Extra | 55 M | 3.1 | 0.3L | £299.00 |
| VAX | Blade 4 Classic Plus CLSV-B4CA | 45 M | 3.1 | 0.7L | £149.00 |
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Best cordless vacuum – Shark PowerPro – beating DuoFlex HX1 Extra and Blade 4 Classic Plus CLSV-B4CA on performance and value
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