As the name implies, the Nespresso Essenza Mini is smaller than the Essenza Plus.
It is narrower by 2 inches, shorter by 3.51 inches, and shallower by 1.4 inches.
The Essenza Plus’s larger body translates to a water tank with a greater capacity (34 ounces vs. 20.3 ounces) and two additional espresso sizes (Americano and Americano XL).
The Essenza Plus also has a Hot Water function, One-Touch ordering, and wireless connectivity absent in the Essenza Mini.