Generally, some of the advantages of the Canon 6D compared to boutique competitors include: it has a weather sealed body, has an external mic jack, has a much longer battery life (980 shots vs 250 shots), uses fast phase detection autofocus (phase detection vs contrast detection) and is thinner (2.8" vs 3.3").
However, on average it has a slightly smaller screen (3" vs 3.2"), has a slightly lower resolution screen (1,040k dots vs 2,100k dots), takes slightly lower resolution photos (20.9 MP vs 30.1 MP), slightly lower maximum light sensitivity (25,600 ISO vs 102,400 ISO) and doesn't have a touch screen.
Canon EOS R
6 years newer
$1,994 - $2,299
Significant advantages of the EOS R (vs the 6D)
- Has a touch screen
- Significantly larger screen: 3.2" vs 3"
- Significantly higher resolution screen: 2,100k dots vs 1,040k dots
Significant disadvantages of the EOS R (vs the 6D)
- Much shorter battery life: 370 shots vs 980 shots
- No built-in GPS
- Built-in lens only
common strengths of the EOS R and 6D
- Great battery life: 370 shots vs 980 shots
- Both use faster phase detection autofocus: Phase detection vs Phase detection
- Have external mic jacks
Canon EOS RP
6 years newer
$1,299 - $1,699
Significant advantages of the EOS RP (vs the 6D)
- Has a touch screen
- Many more focus points: 4,779 vs 11
- Has a flip-out screen
Significant disadvantages of the EOS RP (vs the 6D)
- Much shorter battery life: 250 shots vs 980 shots
- No built-in GPS
- Built-in lens only
common strengths of the EOS RP and 6D
- Both use faster phase detection autofocus: Phase detection vs Phase detection
- Have external mic jacks
- Inexpensive: $1,299.00 vs $999.00
Leica Q (Typ 116)
2 years newer
$3,890 - $3,995
Significant advantages of the Q (Typ 116) (vs the 6D)
- Has a touch screen
- Shoots significantly faster: 10 fps vs 4.5 fps
Significant disadvantages of the Q (Typ 116) (vs the 6D)
- No built-in GPS
- Built-in lens only
- Lacks an external mic jack
common strengths of the Q (Typ 116) and 6D