Head to head · specs cited · drawn to scale
Canon EOS R3 vs Canon EOS R6
Every spec below is quoted from the makers' official pages — where a figure isn't published we say so rather than guess. Sizes are drawn at true relative scale from published dimensions, and the bag-fit row is computed against our measured bag catalog.
The 3 biggest published differences
- EVF resolution: the R3 leads at 5,760,000 dots vs the R6's 3.69 Million dots.
- Burst — electronic: the R3 leads at 30 vs the R6's Max. Approx. 20fps. with Electronic shutter.
- Weight (body): the R6 leads at 680 g vs the R3's 1015 g.
 R3 Canon RF |  R6 Canon RF | |
|---|---|---|
| Overview | ||
| Type | Mirrorless | Mirrorless |
| Format | Full-frame (approx. 36.0 x 24.0 mm) | Full-frame (35mm) |
| Lens mount | Canon RF | Canon RF |
| Released | —, not published | —, not published |
| Sensor & Image | ||
| Sensor type | Full-frame back-illuminated stacked CMOS sensor | 35.9 x 23.9 mm CMOS |
| Sensor size | Full-frame (approx. 36.0 x 24.0 mm) | Full-frame (35mm) |
| Resolution (MP) | 24.1 | Approx. 20.1 megapixels |
| In-body stabilisation | 8 (combined with compatible RF lens IS, per usa.canon.com/shop/p/eos-r3) | Yes, up to 8-Stops advantage depending on the lens used |
| ISO range | 100 | Auto 100-102400 (in 1/3-stop or 1 stop increments); ISO can be expanded to L:50, H:204,800 |
| Autofocus & Speed | ||
| AF system | Dual Pixel CMOS AF II | Dual Pixel CMOS AF II |
| Subject detection | Vehicle Detection as well as Eye, Face, Head, and Animal Detection (usa.canon.com/shop/p/eos-r3); 1053 AF zones (39x27) per KB specifications | Humans, Animals (Dogs, Cats and Birds) or Vehicles (Racing cars or Motor bikes) |
| Burst — mechanical | 12 | Max. Approx. 12fps. with Mechanical shutter |
| Burst — electronic | 30 | Max. Approx. 20fps. with Electronic shutter |
| Video | ||
| Max video | 6K RAW / 4K UHD up to 60p (oversampled) | 4K UHD (16:9) 3840 x 2160 up to 59.94 fps |
| Codecs / sampling | MP4 (ALL-I, IPB Standard, IPB Light); H.264/H.265 | MP4 (H.264 / H.265); YCbCr4:2:0 8-bit or YCbCr4:2:2 10-bit; Canon Log 1 & Canon Log 3; Audio Linear PCM / AAC |
| Recording limit | not published (no fixed clip-length limit stated on spec page beyond card/thermal limits) | Max duration 29min 59sec. (excluding High Frame Rate movies). No 4GB file limit with exFAT formatted SD card. |
| Viewfinder & Screen | ||
| EVF resolution | 5,760,000 dots | 3.69 Million dots |
| EVF magnification | Approx. 0.76x | Approx. 0.76x |
| Rear screen | 3.2-inch TFT color LCD, Approx. 4,150,000 dots, vari-angle touchscreen | 7.5cm (3.0") Clear View LCD II, approx. 1.62 million dots, Vari-angle touchscreen (capacitive touch) |
| Body & Handling | ||
| Dimensions (W×H×D) | 150 × 142.6 × 87.2 mm | 138.4 × 97.5 × 88.4 mm |
| Weight (body) | 1015 g | 680 g |
| Weather sealing | Dust and drip resistance equal to the EOS-1D X Series (usa.canon.com/shop/p/eos-r3) | Water/Dust Resistance: Yes. Although the camera features dust- and water-resistant construction, this cannot completely prevent dust or water droplets from entering the camera. |
| Shutter durability | —, not published | —, not published |
| Power & Storage | ||
| Battery life (CIPA) | 620 (viewfinder, power saving, +23°C, LP-E19) | With LCD Approx. 510 shots (at 23°C); With Viewfinder Approx. 380 shots (at 23°C) |
| Battery | LP-E19 | Rechargeable Li-ion Battery LP-E6NH (supplied)/LP-E6N |
| Card slots | 1x CFexpress (Type B), 1x SD (UHS-II) | 2x SD/SDHC/SDXC and UHS-II |
| Connectivity | ||
| USB | USB Type-C, SuperSpeed Plus USB (USB 3.2 Gen 2) equivalent | SuperSpeed USB 3.1 Gen 2 USB C connector |
| Wireless | IEEE 802.11a/ac/b/g/n Wi-Fi; Bluetooth Specification Version 5.0 (BLE) | Wireless LAN (IEEE802.11b/g/n) (2.4 GHz only), with Bluetooth support |
| HDMI | HDMI micro OUT terminal (Type D) | HDMI micro out (Type D) |
| Price | ||
| Launch price | not published (current usa.canon.com/shop/p/eos-r3 Regular Price shown as $5,399.00, not confirmed as original launch MSRP) | —, not published |
| Size, to scale | ||
Front view, drawn at the same scale from each maker's published W×H (mm). | ||
| Smallest bag that fits | ||
| Body + standard zoom | WANDRD Essential Camera Cube (for PRVKE 21) Fits with 24-105 f/4 · View at WANDRD | Tenba BYOB 10 Camera Insert Fits with 24-105 f/4 · View at B&H Photo Video |
Sources
official · R3 specifications: Canon USA (official Knowledge Base: EOS R3 Specifications) · accessed 2026-07-10
“Type: Full-frame back-illuminated stacked CMOS sensor | Effective pixels: Max. approx. 24.1 megapixels ... Number of AF zones | Still photos | Max. 1053 zones (39 x 27) ... High-speed continuous shooting+ | One-Shot AF | Max. approx. 12 shots/sec. ... Max. approx. 30 shots/sec. (electronic) ... Dot count: Approx. 5,760,000 dots ... Compatible battery packs | LP-E19”
“35.9 x 23.9 mm CMOS; Effective Pixels Approx. 20.1 megapixels; Sensor Shift-IS Yes, up to 8-Stops advantage; Continuous Shooting Max. Approx. 12fps with Mechanical shutter, Max. Approx. 20fps with Electronic shutter; Viewfinder Dot Count 3.69 Million dots, Magnification Approx. 0.76x”
Spec values are the manufacturers' published figures, compared factually — we don't rank cameras. Fit verdicts are planning estimates from published interior dimensions, not guarantees. See methodology.
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