Canon EOS R3 vs Canon EOS R6 Mark III
The bottom line
Same line, different generation: the Canon EOS R6 Mark III (2025) moves ahead on burst speed (40fps vs 30fps) and resolution (32.5MP vs 24.1MP). If those newer features aren't ones you'll actually use, the Canon EOS R3 gives you most of the experience for less.
Choose the Canon EOS R6 Mark III if…
- ✓You shoot action, sports or wildlife — 40fps burst keeps up with fast, erratic movement where 30fps would drop frames.
- ✓You want maximum detail for landscapes, studio or large prints — 32.5MP resolves noticeably more than 24.1MP and gives more cropping latitude.
- ✓You're budget-conscious — it launched at $2,799, about $3,200 less, freeing money for lenses.
- ✓You value portability — at 670g (1.48 lb) it's noticeably lighter than the 1015g (2.24 lb) alternative for travel and all-day carry.
Where they differ
- ›Price: the Canon EOS R6 Mark III launched at $2,799, $3,200 under the Canon EOS R3 — money that could go toward glass.
- ›Card slots: the Canon EOS R6 Mark III has dual slots for instant backup — the reliability paid work depends on.
- ›Weight: the Canon EOS R6 Mark III is 670g (1.48 lb) vs 1015g (2.24 lb) — 345g you'll feel on a long day out.
- ›Resolution: 32.5MP on the Canon EOS R6 Mark III vs 24.1MP — more detail and crop room, at the cost of larger files.
- ›Burst: the Canon EOS R6 Mark III shoots 40fps to the Canon EOS R3's 30fps — the gap that decides whether you nail the peak moment in sports and wildlife.
Frequently asked
Is the Canon EOS R3 or the Canon EOS R6 Mark III better?
Same line, different generation: the Canon EOS R6 Mark III (2025) moves ahead on burst speed (40fps vs 30fps) and resolution (32.5MP vs 24.1MP). If those newer features aren't ones you'll actually use, the Canon EOS R3 gives you most of the experience for less.
Who should choose the Canon EOS R6 Mark III?
Choose the Canon EOS R6 Mark III if you shoot action, sports or wildlife — 40fps burst keeps up with fast, erratic movement where 30fps would drop frames. Choose it if you want maximum detail for landscapes, studio or large prints — 32.5MP resolves noticeably more than 24.1MP and gives more cropping latitude. Choose it if you're budget-conscious — it launched at $2,799, about $3,200 less, freeing money for lenses. Choose it if you value portability — at 670g (1.48 lb) it's noticeably lighter than the 1015g (2.24 lb) alternative for travel and all-day carry.
What is the main difference between the Canon EOS R3 and the Canon EOS R6 Mark III?
Price: the Canon EOS R6 Mark III launched at $2,799, $3,200 under the Canon EOS R3 — money that could go toward glass.
| Product | ||
|---|---|---|
| Imaging | ||
| Sensor Type | BSI Stacked CMOS | BSI Stacked CMOS |
| Sensor Size | Full-Frame | Full-Frame |
| Image Processor | DIGIC X | DIGIC X |
| Effective Resolution | 24.1 MP | 32.5 MP |
| Lens Mount | Canon RF | Canon RF |
| Exposure Control | ||
| ISO Range (Native) | 100 – 102400 | 100 – 102400 |
| ISO Range (Extended) | 50 – 204800 | 50 – 204800 |
| Mechanical Shutter | 1/8000 | 1/8000 |
| Electronic Shutter | 1/64000 | 1/32000 |
| Flash Sync Speed | 1/180 | 1/250 |
| Built-in Flash | No | No |
| Still Image Capture | ||
| Continuous Shooting | 30 fps | 40 fps |
| Video Capture | ||
| Max Resolution | 6K | 7K |
| 8K Recording | − | − |
| 4K Recording | Up to 120p | Up to 120p |
| 1080p Recording | Up to 120p | Up to 180p |
| 10-bit Internal | Yes | Yes |
| Recording Limit | No limit | No limit |
| Log Profiles | C-Log 3 / HDR-PQ | C-Log 2 / C-Log 3 / HLG / HDR-PQ |
| Built-in Mic | Stereo | Stereo |
| Headphone Jack | Yes | Yes |
| Mic Input | Yes | Yes |
| HDMI Output | Full-size (Type A) | Full-size (Type A) |
| Focus | ||
| Phase Detect Points | 1,053 | 1,053 |
| Contrast Detect Points | − | − |
| Low Light AF | -7.5 EV | -7 EV |
| Eye AF | Yes | Yes |
| Animal AF | Yes | Yes |
| Vehicle AF | Yes | Yes |
| Viewfinder | ||
| EVF Type | OLED | OLED |
| EVF Resolution | 5.76M dots | 5.76M dots |
| EVF Magnification | 0.76x | 0.76x |
| Monitor | ||
| LCD Size | 3.2" | 3.2" |
| LCD Resolution | 4.15M dots | 2.10M dots |
| LCD Type | Vari-Angle | Vari-Angle |
| Touch Screen | Yes | Yes |
| Interface | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6E |
| Bluetooth | v5 | v5.3 |
| USB | USB-C 3.1 Gen 2 | USB-C 3.2 |
| Memory Card Slots | 1x CFexpress Type B + 1x SD UHS-II | 2x SD UHS-II |
| GPS | No | No |
| General | ||
| Price (MSRP) | $5,999 | $2,799 |
| Body Material | Magnesium Alloy | Magnesium Alloy |
| Dimensions | 150×142.6×87.2 mm | 138.4×98.4×88.4 mm |
| Weight | 1015g (2.24 lb) | 670g (1.48 lb) |
| Weather Sealed | Yes | Yes |
| In-Body Stabilization | Yes | Yes |
| Battery Life (EVF) | 620 shots | 520 shots |
| Battery Life (LCD) | 860 shots | 760 shots |
| Battery Type | LP-E19 | LP-E6P |
