Model vs model
Qettle Signature Modern 4-in-1 (Round Spout, 7L)
vs Quooker Flex
The Qettle Signature Modern 4-in-1 (Round Spout, 7L) lists at £1,185, £110 less than the Quooker Flex at £1,295.
Every number below comes from the manufacturers' own specification sheets. We highlight which tap leads on each spec; what matters most for your kitchen is your call.
Qettle
Qettle Signature Modern 4-in-1 (Round Spout, 7L)
Higher-capacity 7L boiler for larger households
UK RRP: £1,185
Full review →
The differences at a glance
- The Qettle Signature Modern 4-in-1 (Round Spout, 7L) lists at £1,185, £110 less than the Quooker Flex at £1,295.
- Declared idle draw is 10 W for the Quooker Flex against 18 W for the Qettle Signature Modern 4-in-1 (Round Spout, 7L), which compounds into the standby cost difference below.
- Tank capacity: 7 L on the Qettle Signature Modern 4-in-1 (Round Spout, 7L) versus 3 L on the Quooker Flex. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
- The Qettle Signature Modern 4-in-1 (Round Spout, 7L) dispenses filtered drinking water; the Quooker Flex does not.
- The Quooker Flex ships with a 7-year warranty; the Qettle Signature Modern 4-in-1 (Round Spout, 7L) with a 2-year warranty.
Full specification, side by side
Sourced from manufacturer datasheets. A tick marks the better number on specs where more or less is objectively better.
| Spec | Qettle Signature Modern 4-in-1 (Round Spout, 7L) | Quooker Flex |
|---|---|---|
| UK RRP | £1,185✓ | £1,295 |
| Boiling temperature | 100°C | 100°C |
| Tank capacity | 7 L | 3 L |
| Idle power | 18 W | 10 W✓ |
| Peak power | 1700 W | 1600 W |
| Flow rate | - | - |
| Filtered water | Yes✓ | No |
| Sparkling water | No | No |
| Chilled water | No | No |
| Filter type | Q08 extruded carbon block cartridge | Active carbon filter inside the tank |
| Finishes | 5 | 6✓ |
| Warranty | 2 years | 7 years✓ |
| Released | 2022 | 2023 |
Standby energy
What the idle draw adds up to over a year.
Qettle Signature Modern 4-in-1 (Round Spout, 7L)
- Idle draw
- 18 W
- Standby energy / year
- 158 kWh
- Standby cost / year
- £43
Quooker Flex
- Idle draw
- 10 W
- Standby energy / year
- 88 kWh
- Standby cost / year
- £24
Assumes the manufacturer's declared idle wattage around the clock at £0.27/kWh (UK average, mid-2026). Real usage adds the energy to heat the water you actually draw. Run your own numbers in the running cost calculator.
Strengths and trade-offs
Qettle Signature Modern 4-in-1 (Round Spout, 7L)
What we like
- 7-litre tank serves up to 14 cups in one go, sized for larger households
- Four separate waterways and no electronic components in the tap
- Two-stage child safety: button and turn before boiling water flows
- Marine-grade stainless steel tap, engineered in the UK
Watch out for
- 20-minute initial heat-up and 15-minute recovery after a full tank
- Two-year warranty
Quooker Flex
What we like
- Pull-out hose rinses sinks plus full 100°C boiling
- Same vacuum-insulated tank delivers true boiling water
- Magnetic dock returns hose neatly after use
- Boiling flow auto-locks when hose is detached from base
Watch out for
- £1,295 RRP matches Fusion despite extra moving parts
- Trustpilot owners report hose fraying within several years
- Hose replacement is a paid call-out, not 5-min DIY
- Requires 500mm depth + 200mm width clear undersink space
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- Qettle Signature Modern 4-in-1 (Round Spout, 7L) vs Quooker Nordic Round Single Tap →
- Qettle Signature Modern 4-in-1 (Round Spout, 7L) vs Quooker Fusion Round →