boilingwatertap.

Model vs model

Franke Omni
vs Zip HydroTap G5 Cube Plus

The Franke Omni lists at £1,199, £2,831 less than the Zip HydroTap G5 Cube Plus at £4,030.

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.

FO

Franke

Franke Omni

4-in-1: boiling, filtered, hot, cold

UK RRP: £1,199

Full review →
Zip HydroTap G5 Cube Plus chrome square-spout tap

Zip Water

Zip HydroTap G5 Cube Plus

Cubed-spout flagship: boiling, chilled and sparkling filtered water

UK RRP: £4,030

Full review →

The differences at a glance

  • The Franke Omni lists at £1,199, £2,831 less than the Zip HydroTap G5 Cube Plus at £4,030.
  • The Franke Omni dispenses at 100°C; the Zip HydroTap G5 Cube Plus tops out at 98°C.
  • Declared idle draw is 12 W for the Franke Omni against 35 W for the Zip HydroTap G5 Cube Plus, which compounds into the standby cost difference below.
  • Tank capacity: 4.2 L on the Franke Omni versus 3 L on the Zip HydroTap G5 Cube Plus. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
  • The Zip HydroTap G5 Cube Plus dispenses sparkling water; the Franke Omni does not.
  • The Zip HydroTap G5 Cube Plus dispenses chilled water; the Franke Omni does not.
  • The Franke Omni ships with a 3-year warranty; the Zip HydroTap G5 Cube Plus 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.

Franke Omni vs Zip HydroTap G5 Cube Plus specifications from manufacturer datasheets
SpecFranke OmniZip HydroTap G5 Cube Plus
UK RRP£1,199£4,030
Boiling temperature100°C98°C
Tank capacity4.2 L3 L
Idle power12 W35 W
Peak power1500 W2400 W
Flow rate-4 L/min
Filtered waterYesYes
Sparkling waterNoYes
Chilled waterNoYes
Filter typeFranke 08 filter cartridgeZip MicroPurity 0.2 micron filter
Finishes48
Warranty3 years2 years
Released20232023

Standby energy

What the idle draw adds up to over a year.

Franke Omni

Idle draw
12 W
Standby energy / year
105 kWh
Standby cost / year
£28

Zip HydroTap G5 Cube Plus

Idle draw
35 W
Standby energy / year
307 kWh
Standby cost / year
£83

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

Franke Omni

What we like

  • True 100°C confirmed in Trusted Reviews testing
  • Built-in filter delivers chilled filtered water without add-on
  • Spout body stays cool even during prolonged dispensing
  • 4.2L tank larger than most rivals under £1,200

Watch out for

  • Filter cartridges cost roughly £80 every 6-9 months
  • Owners report flow slowdown after 2 years in hard-water areas
  • Heating tank replacement reported at around £400 out of warranty
  • Low mains pressure (under 1.5 bar) causes noticeable dribble

Zip HydroTap G5 Cube Plus

What we like

  • Instant boiling and chilled water from one tap
  • 0.2-micron MicroPurity filter removes dirt, lead, microplastics and 99.9% of cysts
  • Energy-saving sleep modes and low-impact R290 refrigerant
  • Seven finishes and a 12-month filter interval

Watch out for

  • Factory-set to 98°C rather than true 100°C boiling
  • Under-sink command centre is 470 mm deep
  • Two-year warranty