Head to head · specs cited · drawn to scale
Canon EOS R3 vs Canon EOS R6 Mark II
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 II's 3.69 million dots.
- Weight (body): the R6 II leads at 670 g vs the R3's 1015 g.
- Burst — electronic: the R6 II leads at 40 fps (electronic shutter); RAW Burst 30 fps vs the R3's 30.
 R3 Canon RF |  R6 II 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 | 2022 |
| Sensor & Image | ||
| Sensor type | Full-frame back-illuminated stacked CMOS sensor | 35.9 x 23.9 mm CMOS (full-frame, compatible with Dual Pixel CMOS AF) |
| Sensor size | Full-frame (approx. 36.0 x 24.0 mm) | Full-frame (35mm) |
| Resolution (MP) | 24.1 | 24.2 |
| In-body stabilisation | 8 (combined with compatible RF lens IS, per usa.canon.com/shop/p/eos-r3) | 8 stops |
| ISO range | 100 | 100 (range 100-102400, expandable to L:50, H:204800) |
| 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, Birds, Horses), Vehicles (Racing cars/Motor bikes, Aircraft, Trains) |
| Burst — mechanical | 12 | 12 fps (mechanical shutter) |
| Burst — electronic | 30 | 40 fps (electronic shutter); RAW Burst 30 fps |
| Video | ||
| Max video | 6K RAW / 4K UHD up to 60p (oversampled) | 4K UHD up to 59.94p (6K oversampled, uncropped) |
| Codecs / sampling | MP4 (ALL-I, IPB Standard, IPB Light); H.264/H.265 | H.264/MPEG-4 AVC, H.265/HEVC |
| Recording limit | not published (no fixed clip-length limit stated on spec page beyond card/thermal limits) | Max duration 6 hours (excluding High Frame Rate movies) |
| Viewfinder & Screen | ||
| EVF resolution | 5,760,000 dots | 3.69 million dots |
| EVF magnification | Approx. 0.76x | 0.76x |
| Rear screen | 3.2-inch TFT color LCD, Approx. 4,150,000 dots, vari-angle touchscreen | 3.0-inch Clear View LCD II, approx. 1.62 million dots, touchscreen, vari-angle (vari-angle confirmed via official USA press release: '3-inch 1.62 million dots vari-angle LCD touch screen') |
| Body & Handling | ||
| Dimensions (W×H×D) | 150 × 142.6 × 87.2 mm | 138.4 × 98.4 × 88.4 mm |
| Weight (body) | 1015 g | 670 g |
| Weather sealing | Dust and drip resistance equal to the EOS-1D X Series (usa.canon.com/shop/p/eos-r3) | Yes, dust- and water-resistant construction (cannot completely prevent dust/water entry); official press release describes it as "on par with the EOS 6D series" |
| Shutter durability | —, not published | —, not published |
| Power & Storage | ||
| Battery life (CIPA) | 620 (viewfinder, power saving, +23°C, LP-E19) | 760 shots (LCD) / 450 shots (EVF), CIPA standard, power saving mode, at 23°C |
| Battery | LP-E19 | LP-E6NH (supplied) / LP-E6N |
| Card slots | 1x CFexpress (Type B), 1x SD (UHS-II) | 2x SD/SDHC/SDXC, UHS-II |
| Connectivity | ||
| USB | USB Type-C, SuperSpeed Plus USB (USB 3.2 Gen 2) equivalent | SuperSpeed USB 3.2 Gen 2, USB-C connector |
| Wireless | IEEE 802.11a/ac/b/g/n Wi-Fi; Bluetooth Specification Version 5.0 (BLE) | Wi-Fi IEEE802.11ac/ab/g/n (5GHz/2.4GHz), Bluetooth v5.0 |
| 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) | $2,499.00 (body only) |
| 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. 24.2 megapixels, Sensor Shift-IS Yes, up to 8-Stops advantage. Continuous Shooting Max. Approx. 12fps with Mechanical shutter, Max. Approx. 40fps with Electronic shutter. Battery Life With LCD Approx. 760 shots”
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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