Here is a good comparison on the differences between the 3 breeds of Schnauzers
| Miniature Schnauzer | Standard Schnauzer | Giant Schnauzer | |
| Personality | Friendly, Smart, Obedient | Smart, Fearless, Spirited | Loyal, Alert, Trainable |
| AKC Popularity | 17th | 85th` | 79th |
| Group | Terrier | Working | Working |
| Size |
small 12-14 inches |
medium 18.5-19.5 inches (M) 17.5-18.5 inches (F) |
large 25.5-27.5 in(M) 23.5-25.5 in (F) |
| Weight | 11-20 pounds | 30-50 pounds | 55-85 pounds |
| Life Expectancy | 12-15 years | 13-16 years | 12-15 years |
| Children? | Excellent | Excellent | Good (supervised) |
| Other Dogs? | w/ supervision | w/ supervision | w/ supervision |
| Trainability | eager to please | independent | easy to train |
| Coat Characteristics | medium length | medium length | medium length |
| Coat Colors | black, silver, black&silver | silver (salt & pepper) | black, silver (salt & pepper) |
| Grooming | frequent w professional | brush 2-3X /week | daily brushing |
| Shedding | almost nonexistent | almost nonexistent | almost nonexistent |
| Activity Level | moderately active | moderately active | needs a lot of activity |
| Barking | very vocal | medium | medium |