KurabeDojoThe comparison dojo

Compare · 4 of 4 products

Canon EOS R6 Mark IIIvsSony a1 IIvsSony a7 IVvsRicoh GR IV

eBay prices refresh hourly — check the listing before you buy. We may earn a commission.

Biggest differences

  • Launch price

    Ricoh GR IV leads

    4.34×

    lower is better

    • Canon EOS R6 Mark III2,799 USD
    • Sony a1 II6,499.99 USD
    • Sony a7 IV2,499.99 USD
    • Ricoh GR IV1,499 USD

  • Continuous shooting (electronic)

    Canon EOS R6 Mark III leads

    4×

    higher is better

    • Canon EOS R6 Mark III40 fps
    • Sony a1 II30 fps
    • Sony a7 IV10 fps
    • Ricoh GR IVNot published

  • Weight

    Ricoh GR IV leads

    2.84×

    lower is better

    • Canon EOS R6 Mark III699 g
    • Sony a1 II743 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 a1 II520 shots
    • Sony a7 IV580 shots
    • Ricoh GR IV250 shots

Features not all of them have

High resolution pixel-shift modeonly Sony a1 II

  • ✕
  • ✓
  • ✕
  • ?

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
    • 4K max frame rate
    • 4K max frame rate (full width)
    • Raw video recording
    • Battery life
    • Memory card slots
    • Headphone port
    • HDMI port type

  • Sony a1 II

    • High resolution pixel-shift mode
    • Effective pixels
    • Sensor format
    • In-body image stabilization
    • Max mechanical shutter speed
    • Pre-burst capture duration
    • Max video resolution
    • Viewfinder resolution
    • Viewfinder magnification
    • Screen size
    • Screen articulation
    • Rear screen resolution
    • Memory card slots
    • Headphone port
    • HDMI port type

  • Sony a7 IV

    • Sensor format
    • Max mechanical shutter speed
    • Memory card slots
    • Headphone port
    • HDMI port type

  • Ricoh GR IV

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

What all 4 have

  • USB charging & power delivery✓

Every spec

Red marks the better value in each row.

Overview

Report a problem

Overview specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.

Release date

  • 2025-11
  • 2024-121
  • 2021-10
  • Not published

Launch price

  • 2,799 USD
  • 6,499.99 USD
  • 2,499.99 USD
  • 1,499 USD2

Lens mount

  • Canon RF
  • Sony E
  • Sony E
  • Fixed lens

High resolution pixel-shift mode

  • No
  • Yes3
  • No
  • Not published

Sensor & Image

Report a problem

Sensor & Image specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.

Effective pixels

  • 32.5 MP
  • 50.1 MP
  • 33 MP
  • 25.74 MP

Sensor format

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

Native ISO maximum

  • 64,000 ISO
  • 32,000 ISO
  • 51,200 ISO4
  • 204,800 ISO

In-body image stabilization

  • 8.5 stops5
  • 8.5 stops6
  • 5.5 stops7
  • 6 stops8

Sensor readout speed

  • 13.2 ms
  • Not published
  • Not published
  • Not published

Sensor type

  • CMOS
  • —
  • CMOS
  • CMOS9

Aspect ratios

  • 3:2
  • 3:2
  • 3:2
  • 3:2, 4:3, 1:1, 16:910

Lens & Autofocus

Report a problem

Lens & Autofocus specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.

Continuous shooting (mechanical)

  • 12 fps
  • 10 fps
  • 10 fps11
  • 4 fps12

Continuous shooting (electronic)

  • 40 fps
  • 30 fps
  • 10 fps
  • Not published

Max mechanical shutter speed

  • 8,000 1/s
  • 8,000 1/s
  • 8,000 1/s
  • 4,000 1/s13

Pre-burst capture duration

  • 0.5 s14
  • 1 s15
  • Not published
  • Not published

AF subject detection

  • Human, animal, bird, car, train, airplane, motorcycle16
  • Human, animal, bird, insect, car, train, airplane
  • Human, animal, bird
  • Human17

Video

Report a problem

Video specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.

Max video resolution

  • 7K18
  • 8K
  • 4K
  • 1080p

4K max frame rate

  • 119.9 fps
  • 119.88 fps19
  • 60 fps20
  • Not published

Video codecs

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

4K max frame rate (full width)

  • 120 fps21
  • 59.94 fps22
  • 30 fps23
  • Not published

Raw video recording

  • Internal
  • External24
  • None25
  • None

Video bit depth

  • 10 bit
  • 10 bit
  • 10 bit
  • Not published

Log profile support

  • Yes
  • Yes
  • Yes
  • Not published

Video dynamic range (log)

  • 15 stops26
  • Not published
  • 15 stops27
  • Not published

Viewfinder & Screen

Report a problem

Viewfinder & Screen specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.

Viewfinder resolution

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

Viewfinder magnification

  • 0.76 x
  • 0.9 x
  • 0.78 x
  • Not published

Screen size

  • 3 in
  • 3.2 in
  • 2.95 in28
  • 3 in

Screen articulation

  • Fully articulated
  • Multi-angle
  • Fully articulated
  • Fixed

Rear screen resolution

  • 1.6 M dots
  • 2.1 M dots
  • 1.04 M dots29
  • 1.037 M dots

Handling & Power

Report a problem

Handling & Power specs

What is the problem?
Which specs? Tick all that apply, or none if you are not sure.
Which products? Tick all that apply, or none if you are not sure.

Battery life

  • 620 shots30
  • 520 shots31
  • 580 shots32
  • 250 shots33

Memory card slots

  • 2 slots
  • 2 slots
  • 2 slots
  • 1 slots34

Weather sealing

  • Dust and drip resistant
  • Dust and drip resistant35
  • Dust and drip resistant36
  • Not published

Weight

  • 699 g
  • 743 g
  • 658 g
  • 262 g

Width

  • 138.4 mm
  • 136.1 mm
  • 131.3 mm
  • 109.4 mm

Height

  • 98.4 mm
  • 96.9 mm
  • 96.4 mm
  • 61.1 mm

Depth

  • 88.4 mm
  • 82.9 mm37
  • 69.7 mm38
  • 32.7 mm

USB charging & power delivery

Minimum operating temperature

  • 0 °C
  • 0 °C
  • 0 °C
  • Not published

Headphone port

  • Yes
  • Yes
  • Yes
  • No

HDMI port type

  • Full-size
  • Full-size
  • Full-size
  • None42
Notes on 42 values — test conditions and caveats
  1. 1Sony a1 II, Release date: Announced 19 November 2024; first retail availability was December 2024.
  2. 2Ricoh GR IV, Launch price: Launch MSRP per the review; Ricoh's US store currently lists $1,599.95.
  3. 3Sony a1 II, High resolution pixel-shift mode: 4- or 16-shot pixel shift composites are merged with Sony's Imaging Edge Desktop PC software.
  4. 4Sony a7 IV, Native ISO maximum: Native range tops out at ISO 51200; 50-204800 requires expanded ISO settings.
  5. 5Canon 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.
  6. 6Sony a1 II, In-body image stabilization: 8.5 stops is the CIPA centre rating; 7.0 stops at the periphery.
  7. 7Sony a7 IV, In-body image stabilization: CIPA rating measured with the 50mm F1.4 ZA test lens attached.
  8. 8Ricoh GR IV, In-body image stabilization: Ricoh's 6.0-stop rating applies at frame centre; periphery is rated 4.0 stops (CIPA 2024).
  9. 9Ricoh GR IV, Sensor type: The sensor is a back-illuminated (BSI) CMOS type; mapped to 'cmos' as no BSI option is listed.
  10. 10Ricoh 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.
  11. 11Sony a7 IV, Continuous shooting (mechanical): 10 fps applies to compressed RAW/JPEG/HEIF; drops to 6 fps for lossless or uncompressed RAW.
  12. 12Ricoh GR IV, Continuous shooting (mechanical): The review cites 4 fps continuous without specifying shutter type.
  13. 13Ricoh 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.
  14. 14Canon 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.
  15. 15Sony a1 II, Pre-burst capture duration: Pre-capture buffers between 0.03 s and 1 s of frames before full shutter press.
  16. 16Canon EOS R6 Mark III, AF subject detection: Car detection is tuned for racing cars, per Canon.
  17. 17Ricoh GR IV, AF subject detection: Only face/eye detection is offered; no animal or vehicle subject recognition is listed.
  18. 18Canon EOS R6 Mark III, Max video resolution: 7K is available only in RAW Video mode; standard MP4 recording tops out at 4K.
  19. 19Sony a1 II, 4K max frame rate: 4K 100p/120p recording uses a 1.1x crop.
  20. 20Sony a7 IV, 4K max frame rate: 4K 60p is only available in Super35mm crop; full-frame 4K tops out at 30p.
  21. 21Canon 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.
  22. 22Sony a1 II, 4K max frame rate (full width): Full-width 4K tops out at 59.94p; 4K 100/120p requires a 1.1x crop.
  23. 23Sony a7 IV, 4K max frame rate (full width): 4K 60p requires the Super35mm crop; full-width 4K is limited to 30p.
  24. 24Sony a1 II, Raw video recording: 16-bit RAW video can only be output over HDMI to an external recorder; no internal RAW recording.
  25. 25Sony a7 IV, Raw video recording: No internal or external raw recording; HDMI output tops out at 10-bit 4:2:2.
  26. 26Canon EOS R6 Mark III, Video dynamic range (log): Canon's claim of 15+ stops in its Canon Log profiles, not a lab measurement.
  27. 27Sony a7 IV, Video dynamic range (log): Sony's claim for S-Log3 per internal tests; stated as 15+ stops.
  28. 28Sony a7 IV, Screen size: Sony rates the panel at 2.95in (3.0-type); most sources round to 3in.
  29. 29Sony a7 IV, Rear screen resolution: 1,036,800 dots; Sony's retail pages round this to 1.03 megadots.
  30. 30Canon 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.
  31. 31Sony a1 II, Battery life: CIPA rating is 520 shots per charge on the rear LCD; 420 shots with the viewfinder.
  32. 32Sony a7 IV, Battery life: 580 shots per charge with the rear LCD; 520 with the EVF.
  33. 33Ricoh GR IV, Battery life: CIPA-rated at 23°C with a fully charged DB-120 battery.
  34. 34Ricoh GR IV, Memory card slots: Single microSD slot, plus 53 GB internal memory that cannot record to both at once.
  35. 35Sony a1 II, Weather sealing: Sony specifies dust- and moisture-resistant sealing; no formal IP rating is published.
  36. 36Sony a7 IV, Weather sealing: Dust and moisture resistant but not IP-rated; Sony does not guarantee 100% sealing.
  37. 37Sony a1 II, Depth: Sony also lists 72.8 mm depth measured from grip to monitor, excluding the grip protrusion.
  38. 38Sony a7 IV, Depth: Sony lists 79.8mm total depth; 69.7mm is measured from front grip to rear monitor.
  39. 39Canon 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.
  40. 40Sony a7 IV, USB charging & power delivery: Charging and USB power delivery work only through the USB Type-C port.
  41. 41Ricoh GR IV, USB charging & power delivery: Battery charges and camera draws power in-body over USB-C; fast charging needs a USB-PD adapter.
  42. 42Ricoh GR IV, HDMI port type: Video output is DisplayPort over USB-C; there is no HDMI connector.

Where to buy