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Compare · 3 of 4 products

Canon EOS R6 Mark IIIvsSony a7 IVvsRicoh GR IV

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Biggest differences

  • Continuous shooting (electronic)

    Canon EOS R6 Mark III leads

    4×

    higher is better

    • Canon EOS R6 Mark III40 fps
    • Sony a7 IV10 fps
    • Ricoh GR IVNot published

  • Weight

    Ricoh GR IV leads

    2.67×

    lower is better

    • Canon EOS R6 Mark III699 g
    • Sony a7 IV658 g
    • Ricoh GR IV262 g

  • Battery life

    Canon EOS R6 Mark III leads

    2.48×

    higher is better

    • Canon EOS R6 Mark III620 shots
    • Sony a7 IV580 shots
    • Ricoh GR IV250 shots

  • Native ISO maximum

    Ricoh GR IV leads

    4×

    higher is better

    • Canon EOS R6 Mark III64,000 ISO
    • Sony a7 IV51,200 ISO
    • Ricoh GR IV204,800 ISO

Features not all of them have

Headphone port

  • ✓
  • ✓
  • ✕

Where each one wins

  • Canon EOS R6 Mark III

    • Sensor format
    • In-body image stabilization
    • Continuous shooting (mechanical)
    • Continuous shooting (electronic)
    • Max mechanical shutter speed
    • Max video resolution
    • 4K max frame rate
    • 4K max frame rate (full width)
    • Raw video recording
    • Viewfinder resolution
    • Screen size
    • Screen articulation
    • Rear screen resolution
    • Battery life
    • Memory card slots
    • Headphone port
    • HDMI port type

  • Sony a7 IV

    • Effective pixels
    • Sensor format
    • Max mechanical shutter speed
    • Viewfinder resolution
    • Viewfinder magnification
    • Screen articulation
    • Memory card slots
    • Headphone port
    • HDMI port type

  • Ricoh GR IV

    • Launch price
    • Native ISO maximum
    • Screen size
    • Weight
    • Width
    • Height
    • Depth

What all 3 have

  • Sensor typeCMOS
  • USB charging & power delivery✓

Every spec

Red marks the better value in each row.

Overview

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Overview specs

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Release date

  • 2025-11
  • 2021-10
  • Not published

Launch price

  • 2,799 USD
  • 2,499.99 USD
  • 1,499 USD1

Lens mount

  • Canon RF
  • Sony E
  • Fixed lens

High resolution pixel-shift mode

  • No
  • No
  • Not published

Sensor & Image

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Sensor & Image specs

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Effective pixels

  • 32.5 MP
  • 33 MP
  • 25.74 MP

Sensor format

  • Full-frame
  • Full-frame
  • APS-C

Native ISO maximum

  • 64,000 ISO
  • 51,200 ISO2
  • 204,800 ISO

In-body image stabilization

  • 8.5 stops3
  • 5.5 stops4
  • 6 stops5

Sensor readout speed

  • 13.2 ms
  • Not published
  • Not published

Sensor type

  • CMOS
  • CMOS
  • CMOS6

Aspect ratios

  • 3:2
  • 3:2
  • 3:2, 4:3, 1:1, 16:97

Lens & Autofocus

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Lens & Autofocus specs

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Continuous shooting (mechanical)

  • 12 fps
  • 10 fps8
  • 4 fps9

Continuous shooting (electronic)

  • 40 fps
  • 10 fps
  • Not published

Max mechanical shutter speed

  • 8,000 1/s
  • 8,000 1/s
  • 4,000 1/s10

Pre-burst capture duration

  • 0.5 s11
  • Not published
  • Not published

AF subject detection

  • Human, animal, bird, car, train, airplane, motorcycle12
  • Human, animal, bird
  • Human13

Video

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Video specs

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Max video resolution

  • 7K14
  • 4K
  • 1080p

4K max frame rate

  • 119.9 fps
  • 60 fps15
  • Not published

Video codecs

  • H.264, HEVC, XF-AVC, XF-HEVC
  • H.264, HEVC
  • H.264

4K max frame rate (full width)

  • 120 fps16
  • 30 fps17
  • Not published

Raw video recording

  • Internal
  • None18
  • None

Video bit depth

  • 10 bit
  • 10 bit
  • Not published

Log profile support

  • Yes
  • Yes
  • Not published

Video dynamic range (log)

  • 15 stops19
  • 15 stops20
  • Not published

Viewfinder & Screen

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Viewfinder & Screen specs

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Viewfinder resolution

  • 3.69 M dots
  • 3.69 M dots
  • 0 M dots

Viewfinder magnification

  • 0.76 x
  • 0.78 x
  • Not published

Screen size

  • 3 in
  • 2.95 in21
  • 3 in

Screen articulation

  • Fully articulated
  • Fully articulated
  • Fixed

Rear screen resolution

  • 1.6 M dots
  • 1.04 M dots22
  • 1.037 M dots

Handling & Power

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Handling & Power specs

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Battery life

  • 620 shots23
  • 580 shots24
  • 250 shots25

Memory card slots

  • 2 slots
  • 2 slots
  • 1 slots26

Weather sealing

  • Dust and drip resistant
  • Dust and drip resistant27
  • Not published

Weight

  • 699 g
  • 658 g
  • 262 g

Width

  • 138.4 mm
  • 131.3 mm
  • 109.4 mm

Height

  • 98.4 mm
  • 96.4 mm
  • 61.1 mm

Depth

  • 88.4 mm
  • 69.7 mm28
  • 32.7 mm

USB charging & power delivery

Minimum operating temperature

  • 0 °C
  • 0 °C
  • Not published

Headphone port

  • Yes
  • Yes
  • No

HDMI port type

  • Full-size
  • Full-size
  • None32
Notes on 32 values — test conditions and caveats
  1. 1Ricoh GR IV, Launch price: Launch MSRP per the review; Ricoh's US store currently lists $1,599.95.
  2. 2Sony a7 IV, Native ISO maximum: Native range tops out at ISO 51200; 50-204800 requires expanded ISO settings.
  3. 3Canon EOS R6 Mark III, In-body image stabilization: 8.5 stops is Canon's best-case center rating with certain RF lenses; peripheral and other lenses see less, down to 7.5 stops.
  4. 4Sony a7 IV, In-body image stabilization: CIPA rating measured with the 50mm F1.4 ZA test lens attached.
  5. 5Ricoh GR IV, In-body image stabilization: Ricoh's 6.0-stop rating applies at frame centre; periphery is rated 4.0 stops (CIPA 2024).
  6. 6Ricoh GR IV, Sensor type: The sensor is a back-illuminated (BSI) CMOS type; mapped to 'cmos' as no BSI option is listed.
  7. 7Ricoh GR IV, Aspect ratios: 3:2 is native to the 23.3 x 15.5 mm sensor; 4:3, 1:1 and 16:9 are in-camera crop modes.
  8. 8Sony a7 IV, Continuous shooting (mechanical): 10 fps applies to compressed RAW/JPEG/HEIF; drops to 6 fps for lossless or uncompressed RAW.
  9. 9Ricoh GR IV, Continuous shooting (mechanical): The review cites 4 fps continuous without specifying shutter type.
  10. 10Ricoh GR IV, Max mechanical shutter speed: 1/4000 s requires F5.6 or a smaller aperture; at F2.8 the limit is 1/2500 s.
  11. 11Canon EOS R6 Mark III, Pre-burst capture duration: Works only in the 40 fps electronic-shutter mode; Canon states it as up to 20 frames.
  12. 12Canon EOS R6 Mark III, AF subject detection: Car detection is tuned for racing cars, per Canon.
  13. 13Ricoh GR IV, AF subject detection: Only face/eye detection is offered; no animal or vehicle subject recognition is listed.
  14. 14Canon EOS R6 Mark III, Max video resolution: 7K is available only in RAW Video mode; standard MP4 recording tops out at 4K.
  15. 15Sony a7 IV, 4K max frame rate: 4K 60p is only available in Super35mm crop; full-frame 4K tops out at 30p.
  16. 16Canon EOS R6 Mark III, 4K max frame rate (full width): 4K 120p uses the full width but is not oversampled; oversampled 4K tops out at 60p.
  17. 17Sony a7 IV, 4K max frame rate (full width): 4K 60p requires the Super35mm crop; full-width 4K is limited to 30p.
  18. 18Sony a7 IV, Raw video recording: No internal or external raw recording; HDMI output tops out at 10-bit 4:2:2.
  19. 19Canon EOS R6 Mark III, Video dynamic range (log): Canon's claim of 15+ stops in its Canon Log profiles, not a lab measurement.
  20. 20Sony a7 IV, Video dynamic range (log): Sony's claim for S-Log3 per internal tests; stated as 15+ stops.
  21. 21Sony a7 IV, Screen size: Sony rates the panel at 2.95in (3.0-type); most sources round to 3in.
  22. 22Sony a7 IV, Rear screen resolution: 1,036,800 dots; Sony's retail pages round this to 1.03 megadots.
  23. 23Canon EOS R6 Mark III, Battery life: 620 shots is CIPA's rating using the rear LCD (not the viewfinder) at 23°C; real-world results vary.
  24. 24Sony a7 IV, Battery life: 580 shots per charge with the rear LCD; 520 with the EVF.
  25. 25Ricoh GR IV, Battery life: CIPA-rated at 23°C with a fully charged DB-120 battery.
  26. 26Ricoh GR IV, Memory card slots: Single microSD slot, plus 53 GB internal memory that cannot record to both at once.
  27. 27Sony a7 IV, Weather sealing: Dust and moisture resistant but not IP-rated; Sony does not guarantee 100% sealing.
  28. 28Sony a7 IV, Depth: Sony lists 79.8mm total depth; 69.7mm is measured from front grip to rear monitor.
  29. 29Canon EOS R6 Mark III, USB charging & power delivery: USB-C charging and power need a capable USB-PD source such as Canon's PD-E2; not every power bank works.
  30. 30Sony a7 IV, USB charging & power delivery: Charging and USB power delivery work only through the USB Type-C port.
  31. 31Ricoh GR IV, USB charging & power delivery: Battery charges and camera draws power in-body over USB-C; fast charging needs a USB-PD adapter.
  32. 32Ricoh GR IV, HDMI port type: Video output is DisplayPort over USB-C; there is no HDMI connector.

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