Sony A7 III vs Canon G7X Mark III

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Sony A7 III vs Canon G7X Mark III

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35mm 847.3mm²
24.2 megapixels
ISO 100 - 51,200

Go in depth with our full Sony A7 III Review.
How does it shoot? Sony A7 III in the real world.
See real-world photos taken with the A7 III.
Compare Sony A7 III image quality against competitors.
What’s the bottom line? Read our Sony A7 III conclusion.

1 inch 116.2mm²
20.2 megapixels
24.00mm - 100.00mm (35mm eq.)

Go in depth with our full Canon G7X Mark III Review.

Succeeded by the Sony A7 IV
Compare A7 III vs A7 IV
Compare Sony A7 IV vs Canon G7X Mark III

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Differences

Sony A7 III advantages over Canon G7X Mark III

Larger sensor
35mm vs 1 inch
More sensor area. Bigger is (generally) better.
Eye-level viewfinder
Eye-level vs Rear display only
You'll be able to frame photos even when the sun is out
Bigger pixels
~ 5.93 vs 2.41 microns
Better low-light and dynamic range (all else equal)
NFC
Yes vs No
Simplifies pairing your camera with supported phones
On-sensor phase detect
Yes vs No
Usually improves live view and video AF performance
Longer stills battery life
More info

Longer stills battery life

Cameras with longer battery life can take more photos before exhausting their batteries.

Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable

710 vs 235 shots
Capture more photos
Shoots 24p video
Yes vs No
Gives your movies a big-screen feel
Hot shoe
Hot shoe vs None
Off-camera flashes open new possibilities
More pixels
24.2 vs 20.2 megapixels
Higher resolution photos
Dual card slots
Yes vs No
Gives you more storage flexibility
Headphone jack
Yes vs No
Monitor audio recording while you shoot video
Higher extended ISO
204800 vs 25600 ISO
Higher extended ISO can give more low-light flexibility

Canon G7X Mark III advantages over Sony A7 III

Less expensive
$749* vs $1498
Save money for lenses or accessories
In-camera panoramas
Yes vs No
Stitches multiple shots into a panoramic photo
Internal flash
Internal flash vs None
Useful in a pinch for fill flash
Integrated ND filter
Yes vs No
Shoot in daylight with a large aperture or slow shutter
Thinner
41 mm vs 73 mm
Thinner
Higher max flash sync
1/2000 vs 1/250 sec
Reduce the effect of ambient light in flash shots
Faster JPEG shooting
20.0 fps vs 9.9 fps
Faster JPEG shooting (burst mode)
Faster RAW shooting
30.0 fps vs 9.7 fps
Faster RAW shooting in burst mode
Bigger RAW buffer
76 vs 33 shots
Larger buffer for RAW shots (burst mode)
Faster shutter
1/25600 vs 1/8000 sec
Shoot wide open in bright light

Similarities

Common Strengths

Rear display
Both provide
Review photos on the back of the camera
Focus peaking
Both provide
Your camera will highlight what's in focus
In-Camera Image Stabilization
Both provide
Reduces the effects of camera shake at slower shutter speeds
Shoot 4K video
Both provide
Make sure you have a fast computer
Touchscreen
Both provide
Interact with your camera just like your smartphone
Tiltable Screen
Both provide
Tilt the screen for shooting flexbility
RAW file ability
Both provide
Gives you more flexibility to develop your photos later
Built-in Wi-Fi
Both provide
Share your photos wirelessly
Built-in Bluetooth
Both provide
Always-on wireless connectivity
Manual focus
Both provide
AF is for the weak. Real photographers focus manually.
External Mic Jack
Both provide
Improved sound fidelity when shooting video
HDMI out
Both provide
Use HDMI output to monitor or review video
Bulb shutter
Both provide
Hold the shutter open manually for long exposures
Slow-motion videos
Both provide
Shoot slow-motion videos

Common Weaknesses

Tilt-swivel screen
Neither provide
Tilt and swivel the screen for maximum shooting flexibility
Built-in GPS
Neither provide
Geotag your photos
Top deck display
Neither provide
Check settings with a screen on top of the camera

User reviews

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Read A7 III User Reviews

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Canon G7 X Mark III (Black)

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Review Excerpt

New 24MP sensor offers excellent image quality; Outstanding high ISO performance and dynamic range; Improved JPEG colors; Improved build quality; Fast autofocus; Excellent 4K video; Very good battery life.
Buffer clearing can be slow even with fast UHS-II cards; UHS-II support only on one card slot; No losslessly compressed RAW option; Dedicated battery charger not included; Menus are still confusing; No built-in flash.
Read our Sony A7 III Review

We haven’t reviewed the Canon G7X Mark III.
Read our Canon G7X Mark III Initial Test

The Competition

Compared to Sony A7 II

Sony A7 III

Sony A7 II

$1531
35mm

Shoot 4K video
Touchscreen

$1077
35mm

In-camera panoramas

Compare Sony A7 III vs Sony A7 II

Canon G7X Mark III

Sony A7 II

$1042
1 inch

Less expensive
Shoot 4K video

$1077
35mm

Larger sensor
Eye-level viewfinder

Compare Canon G7X Mark III vs Sony A7 II

Compared to Nikon Z6

Sony A7 III

Nikon Z6

$1531
35mm

Less expensive
NFC

$1396
35mm

Top deck display
More dots on screen

Compare Sony A7 III vs Nikon Z6

Canon G7X Mark III

Nikon Z6

$1042
1 inch

Less expensive
In-camera panoramas

$1396
35mm

Larger sensor
Eye-level viewfinder

Compare Canon G7X Mark III vs Nikon Z6

Compared to Sony RX100 VA

Sony A7 III

Sony RX100 VA

$1531
35mm

Larger sensor
Bigger pixels

$998
1 inch

Less expensive
Slower slow-motion

Compare Sony A7 III vs Sony RX100 VA

Canon G7X Mark III

Sony RX100 VA

$1042
1 inch

Less expensive
Touchscreen

$998
1 inch

Slower slow-motion
Eye-level viewfinder

Compare Canon G7X Mark III vs Sony RX100 VA

Compared to Canon G5X Mark II

Sony A7 III

Canon G5X Mark II

$1531
35mm

Larger sensor
Bigger pixels

$899
1 inch

Less expensive
In-camera panoramas

Compare Sony A7 III vs Canon G5X Mark II

Canon G7X Mark III

Canon G5X Mark II

$1042
1 inch

Less expensive
External Mic Jack

$899
1 inch

Eye-level viewfinder
More telephoto lens reach

Compare Canon G7X Mark III vs Canon G5X Mark II

Compared to Nikon Z6 II

Sony A7 III

Nikon Z6 II

$1531
35mm

Less expensive
NFC

$1747
35mm

Top deck display
Newer

Compare Sony A7 III vs Nikon Z6 II

Canon G7X Mark III

Nikon Z6 II

$1042
1 inch

Less expensive
In-camera panoramas

$1747
35mm

Larger sensor
Eye-level viewfinder

Compare Canon G7X Mark III vs Nikon Z6 II

Compare Other Cameras?