Customers have asked the differences between the Mazzer Mini E and Rocket Fausto. First things first, you can't go wrong with either of these grinders. Featuring electronic dosing and stepless adjustment, each grinder can be incredibly fine tuned and programed to give you your perfect grind every time. 
To start, let's go over the features of each grinder:

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Specification

Price
​Colour
Burr Type
Burr Size
Electronic Dosing
Digital Display 
Hopper Capacity
Casing Material
Programmable
Wattage
​Speed
Size
​Weight

Mini Mazzer Electronic

$ 1,552.00
​Black, Silver, Polished
Flat
64mm
Yes
Yes
320g or 1kg
Diecast Aluminum
Yes
250W
​1400rpm
168mm(w) x 340mm(d) x 470mm(h)
10.2kg

Rocket Fausto

$ 1,644.50
​Black, Chrome
Flat
65mm
Yes
Yes
600g
Diecast Aluminum
Yes
500W
1360rpm
172mm(w) x 282mm(d) x 445mm(h)
11.5kg

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Our Thoughts
Price - The Mini E is slightly cheaper than the Fausto Grinder
Stepless Adjustment - Just like the Mini E, the Fausto Grinder will allow you to fine tune your grind with the easy turn of a dial. Unlike the Mini E, however, the Fausto's dial is MUCH easier to turn. 
65mm blade set - Typically found in commercial grinders, the Fausto Grinder blades are a beast. Unlike most grinders, Mini E included, the bottom blade is adjusted controls the grinding. This means that the Fausto Grinder maintains its calibration through disassembly and cleaning of the internal blades.
Speed - Slower than the Mini E, the Fausto Grinder produces a slightly sweeter espresso