Bezzera Duo vs La Spaziale S1 Mini Vivaldi II

Technical comparison · Dual boiler

In brief

Duo is ahead on water tank capacity; beyond that the two differ in pump type, which is a design choice rather than a ranking. On the category's technical index, Duo ranks #1 of 33, S1 Mini Vivaldi II #24.

Parameter
Bezzera Duo Duo Bezzera F4 · Semi-professional
La Spaziale S1 Mini Vivaldi II S1 Mini Vivaldi II La Spaziale F4 · Semi-professional
Identity
Use tier F4 — Semi-professional F4 — Semi-professional
Price
Price (€) ~2200–5000 € ~1000–2200 €
Price updated on 09/2026 09/2026
Universal specs
Dimensions (W×D×H) (cm) 32.6 × 47 × 42.5 cm 41.5 × 41.5 × 38.5 cm
Weight (kg) 31 kg 28 kg
Voltage (V) 220 V
Category specs
Boiler architecture Dual boiler Dual boiler
Portafilter diameter (mm) 53 mm mm
PID control Yes
Pump type Rotary Vibration
Pre-infusion Programmable
3-way solenoid valve Yes
Water tank capacity (l) 4 l 3 l
Steam wand Manual steam wand
Plumbable Yes
Pressure gauge Yes

The differences that matter

  • Water tank capacity: Duo 4 l vs S1 Mini Vivaldi II 3 l — Duo wins (+33%)
  • Pump type: Duo Rotary · S1 Mini Vivaldi II Vibration

Which one to choose

Choose Duo if…

you value water tank capacity.

See the Duo sheet →

Questo confronto rimanda alle due schede, dove trovi i dati completi e i link ufficiali.