Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Canon G1 X III and Sony A9 side-by-side from the front, back and top in their relative dimensions. Canon G1 X III has external dimensions of 115 x 78 x 51 mm (4.53 x 3.07 x 2.01″) and weighs 399 g (0.88 lb / 14.07 oz) (including batteries). Sony A9 has external dimensions of 127 x 96 x 63 mm (5 x 3.78 x 2.48″) and weighs 673 g (1.48 lb / 23.74 oz) (including batteries).
Below you can see the front view size comparison of Canon G1 X III and Sony A9. Canon G1 X III is clearly the smaller of the two cameras. Its body is 12mm narrower, 18mm shorter and 12mm thinner than Sony A9. As you can tell, actually this is not a fair size comparison since Canon G1 X III has a built-in lens but Sony A9 doesn't. Once you put a lens on A9, its thickness will increase significantly.
![Canon G1 X III vs Sony A9 Camera Size Comparison - Front View]()
Comparison image of Canon G1 X III and Sony A9 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Canon G1 X III and Sony A9.
![Canon G1 X III vs Sony A9 Camera Size Comparison - Back View]()
Comparison image of Canon G1 X III and Sony A9 Size and Weight - Back View
Now lets look at the top view comparison of Canon G1 X III and Sony A9.
![Canon G1 X III vs Sony A9 Camera Size Comparison - Top View]()
Top View Comparison image of Canon G1 X III and Sony A9 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon G1 X III is significantly lighter (274g ) than the Sony A9 which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on A9, the total kit will weigh much higher.
Weather Sealing
Both G1 X III and A9 have weather sealings in their body, making them resistant to water and dust.
LCD Screen Size and Features
Canon G1 X III and Sony A9's LCD screens has the same diagonal size of 3.
Sony A9 features a
Tilting only screen which is mostly only good for shooting from waist or over the head levels. On the other hand, Canon G1 X III sports a
Fully Articulated screen which is more flexible and useful especially for taking Selfie shots and video.
Both Canon G1 X III and Sony A9 have 24.0 MP resolution sensors but Canon G1 X III's sensor is APS-C (22.3 x 14.9 mm ) and Sony A9's sensor is Full frame (35.6 x 23.8 mm ).
Since Sony A9's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Canon G1 X III.
Below you can see the G1 X III and A9 sensor size comparison.
![Canon G1 X III vs Sony A9 Sensor Size Comparison]()
Sensor Size and Resolution Comparison image of Canon G1 X III and Sony A9 Cameras
As seen above, Sony A9 has a 2.5x Larger sensor area than Canon G1 X III. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
In this section, we rank and compare Canon G1 X III and Sony A9 for five different photography types in order to make your decision process easier in case you are specifically interested in one or more of these areas.
Canon G1 X III for Portrait Photography
Sony A9 for Portrait Photography
Large APS-C (22.3 x 14.9 mm) sensor
Very High Resolution Sensor: 24.0MP
Image Stabilization
External Flash Shoe
Electronic Built-in Viewfinder
Not so good Ergonomics&Handling
Read the details
Large Full frame (35.6 x 23.8 mm) sensor
Very High Resolution Sensor: 24.0MP
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Read the details
Canon G1 X III for Street Photography
Sony A9 for Street Photography
Large APS-C (22.3 x 14.9 mm) sensor
Image Stabilization
Electronic Built-in Viewfinder
Small Body
Live-view
Face-Detection Focusing
Fully Articulated LCD Screen
Fast Lens at Wide: f2.80
24 mm - Good Wide Angle Coverage
Read the details
Large Full frame (35.6 x 23.8 mm) sensor
Image Stabilization
Electronic Built-in Viewfinder
Live-view
Face-Detection Focusing
Tilting LCD Screen
Medium sized Body
Read the details
Canon G1 X III for Sports Photography
Sony A9 for Sports Photography
Image Stabilization
External Flash Shoe
Electronic Built-in Viewfinder
Fast Continuous Shooting: 9.0fps
Environmental Sealings
49 Focus Points
Wireless Connection
Average Max shutter speed: 1/2000s
Not so good Ergonomics&Handling
Poor Battery Life: 200 shots
72 mm Tele Lens
Read the details
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Fast Continuous Shooting: 20.0fps
Environmental Sealings
Fast Max shutter speed: 1/8000s
693 Focus Points
Good Battery Life: 650 shots
Good Low Light ISO
Wireless Connection
Anti Flicker feature
Read the details
Canon G1 X III for Daily Photography
Sony A9 for Daily Photography
Large APS-C (22.3 x 14.9 mm) sensor
Compact Body
Environmental Sealings
399g
Body Thickness 51mm
3.0X Optical Zoom
Read the details
Large Full frame (35.6 x 23.8 mm) sensor
Environmental Sealings
Anti Flicker feature
Medium size Body
673g
Body Thickness 63mm
Read the details
Canon G1 X III for Landscape Photography
Sony A9 for Landscape Photography
Large APS-C (22.3 x 14.9 mm) sensor
Very High Resolution Sensor: 24.0MP
24 mm - Good Wide Angle Coverage
Environmental Sealings
Read the details
Large Full frame (35.6 x 23.8 mm) sensor
Very High Resolution Sensor: 24.0MP
Environmental Sealings
Live-view
Read the details
You may have already made your decision about which camera suits better for your needs and your budget so far but in case you wonder how we rated Canon G1 X III and Sony A9, below you can find their scores in five different aspects.
Our Decision Algorithm dynamically scores cameras using 63 different specs, current price and DxO Mark scores (where possible) in order to make a more objective and consistent comparison.
Here is a summary of how Canon G1 X III and Sony A9 scores compare:
Canon G1 X III
Ranked
#6 out of 61 in Large sensor compact cameras
Ranked
#134 out of 1220 in all Cameras
Sony A9
Ranked
#13 out of 86 in SLR-style mirrorless cameras
Ranked
#14 out of 1220 in all Cameras
Sony A9 is the overall winner of this comparison. It has a higher Overall Score and beats Canon G1 X III in all criteria except one: Portability.
If small size and light body is a big priority for you, choose Canon G1 X III. Otherwise, Sony A9 is the better camera overall.
| General |
Canon PowerShot G1 X Mark III |
Sony Alpha A9 |
| Brand |
Canon |
Sony |
| Announced |
2017-10-25 |
2017-04-19 |
| Body Type |
Large sensor compact |
SLR-style mirrorless |
Sensor |
|
|
| Type |
CMOS |
BSI-CMOS |
| Size |
APS-C |
Full frame |
| Dimensions |
22.3 x 14.9 mm |
35.6 x 23.8 mm |
| Area |
332.27mm2 |
847.28mm2 |
| Megapixels |
24 megapixels |
24 megapixels |
| Max Resolution |
6000 x 4000 |
6000 x 4000 |
| Max Native Light sensitivity |
25,600 ISO |
51,200 ISO |
| Max Boosted Light Sensitivity |
- |
204800 ISO |
| Min Native Light sensitivity |
100 ISO |
100 ISO |
| Min Boosted Light Sensitivity |
- |
50 ISO |
| RAW Support |
|
|
Autofocus |
|
|
| AF Touch |
|
|
| AF Continuous |
|
|
| AF Single |
|
|
| AF Tracking |
|
|
| AF Selective |
|
|
| AF Center |
|
|
| AF Multi Area |
|
|
| AF Live View |
|
|
| AF Face Detection |
|
|
| AF Contrast Detection |
|
|
| AF Phase Detection |
|
|
| Number of Focus Points |
49 |
693 |
Lens |
|
|
| Manual Focus |
|
|
| Lens Mount |
fixed lens |
Sony E |
| Lens Focal Range |
24-72 mm (3x) |
no lens |
| Max Aperture |
F2.8-5.6 |
no lens |
| Macro Focus Range |
10cm |
no lens |
Screen |
|
|
| Type |
Fully Articulated |
Tilting |
| Size |
3 |
3" |
| Resolution |
1,040k dots |
1,440k dots |
| Touch Screen |
|
|
Viewfinder |
|
|
| Viewfinder |
Electronic |
Electronic |
| Viewfinder Resolution |
2,360k dots |
3,686k dots |
| Viewfinder Coverage |
100% |
100% |
| Viewfinder Magnification |
n/a |
0.78x |
Photography Features |
|
|
| Max Mechanical Shutter |
1/2000s |
1/8000s |
| Max Electronic Shutter |
n/a |
1/32000s |
| Shutter Priority |
|
|
| Aperture Priority |
|
|
| Manual Exposure Mode |
|
|
| Custom White Balance |
|
|
| Image Stabilization |
Optical |
Sensor-shift |
| Built-in Flash |
|
|
| Flash Range |
9.00 m (at Auto ISO) |
no built-in flash |
| External Flash |
|
|
| Continuous Shooting |
9.0 fps |
20.0 fps |
| Multi-Segment |
|
|
| Average |
|
|
| Spot |
|
|
| Partial |
|
|
| AF-Area |
|
|
| Center Weighted |
|
|
| AE Bracketing |
|
|
| WB Bracketing |
|
|
Video Features |
|
|
| Max Video Resolution |
1920 x 1080 |
3840 x 2160 |
| Video Formats |
MPEG-4, H.264 |
MPEG-4, AVCHD, H.264 |
| Microphone Port |
|
|
| Headphone Port |
|
|
Connectivity |
|
|
| Wireless Connectivity |
Built-In |
Built-In |
| HDMI |
|
|
Physical |
|
|
| Environmental Sealing |
|
|
| Weight |
399g |
673g |
| Dimensions |
115 x 78 x 51mm |
127 x 96 x 63mm |
| Battery Life |
200 shots |
650 shots |
Other Features |
|
|
| Timelapse Recording |
|
|
| GPS |
None |
None |
DxO Sensor Scores |
|
|
| DxO Overall Score |
not tested |
92 |
| DxO Color Depth |
not tested |
24.9 |
| DxO Dynamic Range |
not tested |
13.3 |
| DxO Low Light ISO |
not tested |
3517 |
|
Report a correction |
Report a correction |