La Spaziale S1 Mini Vivaldi II vs Sage Dual Boiler

Technical comparison · Dual boiler

In brief

Dual Boiler is the best value for money in its class. S1 Mini Vivaldi II is ahead on water tank capacity; beyond that the two differ in portafilter diameter, which is a design choice rather than a ranking. On the category's technical index, Dual Boiler ranks #21 of 34, S1 Mini Vivaldi II #24.

Parameter
La Spaziale S1 Mini Vivaldi II S1 Mini Vivaldi II La Spaziale F4 · Semi-professional
Sage Dual Boiler Dual Boiler Sage F4 · Semi-professional
Awards —
Identity
Use tier F4 — Semi-professional F4 — Semi-professional
Price
Price (€) ~1000–2200 € 1249.90 €
Price updated on 09/2026 09/2026
Universal specs
Dimensions (W×D×H) (cm) 41.5 × 41.5 × 38.5 cm 37.9 × 40.3 × 37.1 cm
Weight (kg) 28 kg —
Power (W) — 1800 W
Voltage (V) — 220 V
Category specs
Boiler architecture Dual boiler Dual boiler
Portafilter diameter (mm) 53 mm mm 58 mm mm
PID control — Yes
Brew pressure (bar) — 9 bar
Max pump pressure (bar) — 15 bar
Pump type Vibration —
Pre-infusion — Programmable
3-way solenoid valve Yes —
Boiler material — Stainless steel
Water tank capacity (l) 3 l 2.5 l
Steam wand Manual steam wand Manual steam wand
Pressure gauge Yes Yes

CoffeeSpecs Awards

S1 Mini Vivaldi II

No awards in this tier.

Dual Boiler

Best value Semi-professional

Best balance of technical score and price among the 14 sheets in the Dual boiler category (semi-professional tier): list price €1250, technical score 86/100.

How we assign awards →

Lowest price range Semi-professional

The lowest list price among the sheets in the Dual boiler category (semi-professional tier): €1250, as published by the manufacturer.

How we assign awards →

The differences that matter

  • Water tank capacity: S1 Mini Vivaldi II 3 l vs Dual Boiler 2.5 l — S1 Mini Vivaldi II wins (+20%)
  • Portafilter diameter: S1 Mini Vivaldi II 53 mm · Dual Boiler 58 mm

Which one to choose

Choose S1 Mini Vivaldi II if…

you value water tank capacity.

See the S1 Mini Vivaldi II sheet →

Choose Dual Boiler if…

It is the best value for money in its class.

See the Dual Boiler sheet →

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