Head to head · specs cited · drawn to scale

Canon EOS R3 vs Canon EOS R5

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

Canon EOS R3 R3 Canon RF
Canon EOS R5 R5 Canon RF
Overview
Type MirrorlessMirrorless
Format Full-frame (approx. 36.0 x 24.0 mm)Full-frame (35mm)
Lens mount Canon RFCanon RF
Released —, not published2020
Sensor & Image
Sensor type Full-frame back-illuminated stacked CMOS sensor36 x 24 mm CMOS (full-frame)
Sensor size Full-frame (approx. 36.0 x 24.0 mm)Full-frame (35mm)
Resolution (MP) 24.145
In-body stabilisation 8 (combined with compatible RF lens IS, per usa.canon.com/shop/p/eos-r3)8 stops
ISO range 100100 (range 100-51200, expandable to L:50, H1:102400)
Autofocus & Speed
AF system Dual Pixel CMOS AF IIDual 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 specificationsHumans, Animals (Dogs, Cats, Birds), Vehicles (Racing cars/Motor bikes)
Burst — mechanical 1212 fps (mechanical shutter)
Burst — electronic 3020 fps (electronic shutter)
Video
Max video 6K RAW / 4K UHD up to 60p (oversampled)8K DCI up to 29.97p (RAW/intra/inter frame); 4K up to 119.9p
Codecs / sampling MP4 (ALL-I, IPB Standard, IPB Light); H.264/H.265H.264/MPEG-4 AVC, H.265/HEVC, 12-bit RAW (CRM)
Recording limit not published (no fixed clip-length limit stated on spec page beyond card/thermal limits)Max duration 29 min 59 sec (excluding High Frame Rate movies); no 4GB file limit with exFAT
Viewfinder & Screen
EVF resolution 5,760,000 dots5.76 million dots (1600x1200)
EVF magnification Approx. 0.76x0.76x
Rear screen 3.2-inch TFT color LCD, Approx. 4,150,000 dots, vari-angle touchscreen3.15-inch (8.01cm) Clear View LCD II, approx. 2.1 million dots, touchscreen, vari-angle (vari-angle confirmed via official USA press release: '3.2-inch 2.1 million dots vari-angle LCD touch screen')
Body & Handling
Dimensions (W×H×D) 150 × 142.6 × 87.2 mm138.5 × 97.5 × 88 mm
Weight (body) 1015 g738 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; official press release describes it as "weather, drip and dust sealing on par with the EOS 5D series"
Shutter durability —, not published—, not published
Power & Storage
Battery life (CIPA) 620 (viewfinder, power saving, +23°C, LP-E19)490 shots (LCD) / 320 shots (EVF), CIPA standard, at 23°C
Battery LP-E19LP-E6NH (supplied) / LP-E6N
Card slots 1x CFexpress (Type B), 1x SD (UHS-II)1x CFexpress Type B (max 2TB) + 1x SD/SDHC/SDXC UHS-II
Connectivity
USB USB Type-C, SuperSpeed Plus USB (USB 3.2 Gen 2) equivalentSuperSpeed USB 3.1 Gen 2, USB-C connector
Wireless IEEE 802.11a/ac/b/g/n Wi-Fi; Bluetooth Specification Version 5.0 (BLE)Wi-Fi IEEE802.11a/b/g/n/ac (5GHz/2.4GHz), Bluetooth 4.2
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)$3,899.00 (body only)
Size, to scale
R3150×142.6×87.2R5138.5×97.5×88

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”
official · R5 specifications: Canon (official specifications page) · accessed 2026-07-10
“36 x 24 mm CMOS, Effective Pixels Approx. 45 megapixels, Sensor Shift-IS Yes, up to 8-Stops. Continuous Shooting Max. Approx. 12fps with Mechanical shutter or 20fps with electronic shutter. Battery Life With LCD Approx. 490 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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