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Compare · 3 of 4 products

Canon EOS R6 Mark IIIvsCanon EOS R100vsRicoh GR IV

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Biggest differences

  • Weight

    Ricoh GR IV leads

    2.67×

    lower is better

    • Canon EOS R6 Mark III699 g
    • Canon EOS R100356 g
    • Ricoh GR IV262 g

  • Native ISO maximum

    Ricoh GR IV leads

    16×

    higher is better

    • Canon EOS R6 Mark III64,000 ISO
    • Canon EOS R10012,800 ISO
    • Ricoh GR IV204,800 ISO

  • Battery life

    Canon EOS R6 Mark III leads

    2.48×

    higher is better

    • Canon EOS R6 Mark III620 shots
    • Canon EOS R100430 shots
    • Ricoh GR IV250 shots

  • 4K max frame rate

    Canon EOS R6 Mark III leads

    4.8×

    higher is better

    • Canon EOS R6 Mark III119.9 fps
    • Canon EOS R10025 fps
    • Ricoh GR IVNot published

Features not all of them have

Log profile supportonly Canon EOS R6 Mark III

  • ✓
  • ✕
  • ?

USB charging & power delivery

  • ✓
  • ✕
  • ✓

Headphone portonly Canon EOS R6 Mark III

  • ✓
  • ✕
  • ✕

Where each one wins

  • Canon EOS R6 Mark III

    • Effective pixels
    • 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
    • Video bit depth
    • Log profile support
    • Viewfinder resolution
    • Viewfinder magnification
    • Screen articulation
    • Rear screen resolution
    • Battery life
    • Memory card slots
    • Weather sealing
    • USB charging & power delivery
    • Headphone port
    • HDMI port type

  • Canon EOS R100

    No outright wins on the specs we can rank.

  • Ricoh GR IV

    • Launch price
    • Native ISO maximum
    • Weight
    • Width
    • Height
    • Depth
    • USB charging & power delivery

What all 3 have

  • Sensor typeCMOS
  • Screen size3 in

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
  • Not published
  • Not published

Launch price

  • 2,799 USD
  • Not published
  • 1,499 USD1

Lens mount

  • Canon RF
  • Canon RF
  • Fixed lens

High resolution pixel-shift mode

  • No
  • Not published
  • Not published

Sensor & Image

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Sensor & Image specs

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Effective pixels

  • 32.5 MP
  • 24.1 MP
  • 25.74 MP

Sensor format

  • Full-frame
  • APS-C
  • APS-C

Native ISO maximum

  • 64,000 ISO
  • 12,800 ISO2
  • 204,800 ISO

In-body image stabilization

  • 8.5 stops3
  • 0 stops4
  • 6 stops5

Sensor readout speed

  • 13.2 ms
  • Not published
  • Not published

Sensor type

  • CMOS
  • CMOS
  • CMOS6

Aspect ratios

  • 3:2
  • 3:2, 4:3, 1:1, 16:9
  • 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
  • 6.5 fps
  • 4 fps8

Continuous shooting (electronic)

  • 40 fps
  • 0 fps9
  • Not published

Max mechanical shutter speed

  • 8,000 1/s
  • 4,000 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
  • 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
  • 25 fps
  • Not published

Video codecs

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

4K max frame rate (full width)

  • 120 fps15
  • 0 fps16
  • Not published

Raw video recording

  • Internal
  • None
  • None

Video bit depth

  • 10 bit
  • 8 bit
  • Not published

Log profile support

  • Yes
  • No
  • Not published

Video dynamic range (log)

  • 15 stops17
  • Not published
  • Not published

Viewfinder & Screen

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Viewfinder & Screen specs

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

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

Viewfinder magnification

  • 0.76 x
  • 0.59 x18
  • Not published

Screen size

  • 3 in
  • 3 in
  • 3 in

Screen articulation

  • Fully articulated
  • Fixed
  • Fixed

Rear screen resolution

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

Handling & Power

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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 shots19
  • 430 shots
  • 250 shots20

Memory card slots

  • 2 slots
  • 1 slots
  • 1 slots21

Weather sealing

  • Dust and drip resistant
  • None
  • Not published

Weight

  • 699 g
  • 356 g22
  • 262 g

Width

  • 138.4 mm
  • 116.3 mm
  • 109.4 mm

Height

  • 98.4 mm
  • 85.5 mm
  • 61.1 mm

Depth

  • 88.4 mm
  • 68.8 mm
  • 32.7 mm

USB charging & power delivery

Minimum operating temperature

  • 0 °C
  • 0 °C
  • Not published

Headphone port

  • Yes
  • No
  • No

HDMI port type

  • Full-size
  • Micro
  • None26
Notes on 26 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. 2Canon EOS R100, Native ISO maximum: ISO 25600 (H) is an expanded setting, not a native sensitivity.
  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. 4Canon EOS R100, In-body image stabilization: No in-body stabilization; shake correction relies on IS lenses or Movie Digital IS.
  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. 8Ricoh GR IV, Continuous shooting (mechanical): The review cites 4 fps continuous without specifying shutter type.
  9. 9Canon EOS R100, Continuous shooting (electronic): The electronic (silent) shutter does not support continuous shooting on this camera.
  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. 15Canon 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.
  16. 16Canon EOS R100, 4K max frame rate (full width): All 4K recording uses a ~1.6x centre crop, so no full-width 4K mode exists.
  17. 17Canon EOS R6 Mark III, Video dynamic range (log): Canon's claim of 15+ stops in its Canon Log profiles, not a lab measurement.
  18. 18Canon EOS R100, Viewfinder magnification: Canon's 0.95x is quoted with a 50mm lens on APS-C; in 35mm-equivalent terms it is 0.59x.
  19. 19Canon 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.
  20. 20Ricoh GR IV, Battery life: CIPA-rated at 23°C with a fully charged DB-120 battery.
  21. 21Ricoh GR IV, Memory card slots: Single microSD slot, plus 53 GB internal memory that cannot record to both at once.
  22. 22Canon EOS R100, Weight: CIPA weight: body with battery and memory card, without lens.
  23. 23Canon 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.
  24. 24Canon EOS R100, USB charging & power delivery: The battery must be charged in the external LC-E17E charger; no USB power delivery.
  25. 25Ricoh GR IV, USB charging & power delivery: Battery charges and camera draws power in-body over USB-C; fast charging needs a USB-PD adapter.
  26. 26Ricoh GR IV, HDMI port type: Video output is DisplayPort over USB-C; there is no HDMI connector.

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