Canon EOS M3 vs Sony Alpha A7R III Compare

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Here you can find digital cameras comparison. Pick up with the best rating.

Cameras which are being compared are Mirrorless cameras.

Learn more about compared cameras specifications below.

Canon EOS M3 vs Sony Alpha A7R III Specs

EOS M3

  • Introduced in April 2015
  • Mirrorless
  • Sensor: APS-C
  • 24 megapixel
  • 4 frames/second
  • 100 – 12800 ISO
  • 1920 x 1080 Video
  • No viewfinder
  • 75.00mm (3.0″) Monitor, articulated
  • Lens mount EF-M
  • WiFi built-in
  • 110.9 x 68 x 44.4mm³ (4.4″ x 2.7″ x 1.7″)
  • 366g (11.8 oz.)

All specs: Main page for EOS M3

Alpha A7R III

  • Introduced in October 2017
  • Mirrorless
  • Sensor: Full frame
  • 42 megapixel
  • 10 frames/second
  • 100 – 32000 ISO
  • 3840 x 2160 Video
  • Viewfinder: Elektronic
  • 76.00mm (3.0″) Monitor, articulated
  • Lens mount E Mount
  • WiFi built-in
  • 126.9 x 95.6 x 73.7mm³ (5.0″ x 3.8″ x 2.9″)
  • 657g (21.2 oz.)

All specs: Main page for Alpha A7R III

EOS M3 vs Alpha A7R III Sensors

On the pictures below the sensor areas of cameras are highlighted.

This infographic highlights the sensor areas of both models compared to other common sensor formats:

Advantage: Sony Alpha A7R III

Canon EOS M3 VS Sony Alpha A7R III Other Specs Comparison

Why is Canon EOS M3 a better choice

EOS M3

Alpha A7R III
Built-in flash (2)
Weighs less (2)

366g
(11.8 oz.)		 657g
(21.2 oz.)
More portable (2)

335cm³
(21 cu.in.)		 894cm³
(56 cu.in.)

Conclusion: Advantages of the EOS M3 are the built-in flash, the lower weight than the Alpha A7R III and the more compact size.

The EOS M3 scores 6 points.

Otherwise why to choose Sony Alpha A7R III

EOS M3

Alpha A7R III
Larger sensor (5)

APS-C Full frame
Wider resolution (5, megapixel)

24.40 42.40
Higher speed (4, frames/second)

4 10
Auto Focus points (4)

49 399
Better sensibility (4)

100 – 12800 ISO 100 – 32000 ISO
Larger lens selection (3)

7 50
Image stabilizer (3)
Better monitor (2, Megapixel)

1.04 1.44
Better Video (2)

1920 x 1080 3840 x 2160
Longer battery life (3, photos)

250 650
USB 3.0 (2)
Environmental sealing (2)

Conclusion: Advantages of the Alpha A7R III are the larger sensor, the higher resolution and that the camera is faster. Additional pros for the Sony are the faster and more accurate auto focus, the larger sensitivity and the larger selection of lenses. We also like the optical image stabilizer, that the display has a higher resolution and the superior video recording. A recommendation of the Alpha A7R III is made easy by that the battery has more stamina, the support for USB 3.0. HArdly a luxury, given today’s image size and the requirements of 4K video.

Yields 37 points for the Alpha A7R III.

Common Specs for both cameras compared

EOS M3

Alpha A7R III
Sensor cleaning
Articulated screen
Touch screen
External microphone
WiFi
Canon EOS M3 VS Sony Alpha A7R III Dimensions

Look at front view of the EOS M3 and Alpha A7R III

Top view of cameras

Total scores

Here’s the total score according to comparison above:

Canon EOS M3

Sony Alpha A7R III

6
37

We recommend Sony Alpha A7R III as better choice.