Pentax 645D Alternatives
The 645D is rated #10 out of 35 in Pro DSLR cameras. Here is a short outline of the 645D.
40MP
Medium format
1480 grams
ISO 1,600
Portability
50 Imaging
76 Features
52 Overall
66
50 Imaging
76 Features
52 Overall
66
amazing resolution (40 megapixels)
comes with phase detect autofocus
focusing manually
great sensor size (Medium format)
bad battery pack (800 CIPA)
can't shoot video
continuous shooting slow (1.0 fps)
display isn't selfie friendly
The following are some competitors to the Pentax 645D sorted by their overall score. You can easily browse a thorough review of every camera or a comparison with the Pentax 645D by visiting the urls under each camera card. You can also press on the 
image to check out a visual comparison or follow this link to see them all alongside each other.
#1 Canon 1D X III
20MP
Full frame
1440 grams
ISO 102,400
Portability
50 Imaging
74 Features
85 Overall
78
50 Imaging
74 Features
85 Overall
78
better than average battery pack (2,850 CIPA)
comes with phase detect autofocus
comes with touch focus
does have HDMI port
display isn't selfie friendly
fixed screen
lack of image stabilization
Supernova astonishes astronomers in ancient 12th century observations#2 Nikon D6
21MP
Full frame
1270 grams
ISO 102,400
Portability
50 Imaging
74 Features
85 Overall
78
50 Imaging
74 Features
85 Overall
78
better than average battery pack (3,580 CIPA)
comes with phase detect autofocus
comes with touch focus
does have HDMI port
display isn't selfie friendly
fixed screen
lack of image stabilization
YouTube trialing AI that fast-forwards to the best video segments#3 Pentax 645Z
51MP
Medium format
1550 grams
ISO 204,800
Portability
49 Imaging
81 Features
74 Overall
78
49 Imaging
81 Features
74 Overall
78
amazing resolution (51 megapixels)
comes with phase detect autofocus
does have HDMI port
does have mic port
bad battery pack (650 CIPA)
continuous shooting slow (3.0 fps)
display isn't selfie friendly
heavier than average in class (1,550 grams)
Photography Glossary#4 Nikon D5
21MP
Full frame
1415 grams
ISO 102,400
Portability
50 Imaging
71 Features
84 Overall
76
50 Imaging
71 Features
84 Overall
76
better than average battery pack (3,780 CIPA)
comes with phase detect autofocus
does have HDMI port
does have headphone port
display isn't selfie friendly
fixed screen
lack of image stabilization
Meta to Introduce 'AI-Generated' Labels for Media starting next month#5 Canon 1D X II
20MP
Full frame
1530 grams
ISO 51,200
Portability
50 Imaging
70 Features
79 Overall
73
50 Imaging
70 Features
79 Overall
73
comes with phase detect autofocus
comes with touch focus
does have HDMI port
does have headphone port
bad battery pack (1,210 CIPA)
display isn't selfie friendly
fixed screen
lack of image stabilization
Sora from OpenAI releases its first ever music video#6 Nikon D4s
16MP
Full frame
1350 grams
ISO 25,600
Portability
50 Imaging
64 Features
84 Overall
72
50 Imaging
64 Features
84 Overall
72
better than average battery pack (3,020 CIPA)
comes with phase detect autofocus
does have HDMI port
does have headphone port
display isn't selfie friendly
fixed screen
lack of image stabilization
Photobucket discusses licensing 13 billion images with AI firms#7 Canon 1D C
18MP
Full frame
1500 grams
ISO 51,200
Portability
50 Imaging
65 Features
79 Overall
70
50 Imaging
65 Features
79 Overall
70
comes with phase detect autofocus
does have HDMI port
does have mic port
focusing manually
display isn't selfie friendly
fixed screen
lack of image stabilization
missing headphone port
Cutting-edge AI developed by Apple deciphers subtle nuances in pixels#8 Nikon D4
16MP
Full frame
1340 grams
ISO 12,800
Portability
50 Imaging
62 Features
81 Overall
69
50 Imaging
62 Features
81 Overall
69
comes with phase detect autofocus
does have HDMI port
does have headphone port
does have mic port
display isn't selfie friendly
fixed screen
lack of image stabilization
Japan-exclusive Leica Leitz Phone 3 features big sensor and new modes#9 Canon 1D X
18MP
Full frame
1340 grams
ISO 51,200
Portability
50 Imaging
65 Features
73 Overall
68
50 Imaging
65 Features
73 Overall
68
comes with phase detect autofocus
does have HDMI port
does have mic port
focusing manually
bad battery pack (1,120 CIPA)
display isn't selfie friendly
fixed screen
lack of image stabilization
Body cameras now worn by bakery staff to deter stealing 