Canon EOS R3 · with battery grip
full-frame · 2021
Canon EOS R5 Mark II
45 MP stacked · 8K60 RAW · AI detection
Canon EOS R5 Mark II takes it — here’s why.
In our weighted Specdex score, Canon EOS R3 · with battery grip lands at 93 and Canon EOS R5 Mark II at 95. That puts Canon EOS R5 Mark II ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Canon EOS R3 · with battery grip if…
- ✓Current-gen AF system
- ✓Proven lens ecosystem
- ✓Strong video + stills balance
Pick Canon EOS R5 Mark II if…
- ✓8K 60p RAW internal recording
- ✓Next-gen AI subject detection (5,850 AF points, 100% coverage)
- ✓Up to 30 fps electronic burst
Winner by scenario
Derived from the sub-score breakdown · not a separate testPhoto
Canon EOS R5 Mark IICompared on the photo sub-score
Canon EOS R5 Mark II leads on photo (96 vs 93).
Autofocus
Canon EOS R5 Mark IICompared on the autofocus sub-score
Canon EOS R5 Mark II leads on autofocus (98 vs 91).
Video
Canon EOS R5 Mark IICompared on the video sub-score
Canon EOS R5 Mark II leads on video (96 vs 89).
Value for money
Canon EOS R5 Mark IISpecdex score per dollar at MSRP
Canon EOS R5 Mark II more score per dollar ($4,299 vs $6,299).
Score breakdown
Specs side-by-side
| Spec | Canon EOS R3 · with battery grip | Canon EOS R5 Mark II |
|---|---|---|
| Format | full-frame | — |
| Release year | 2021 | — |
| Sensor | — | 45 MP BSI stacked CMOS |
| Mount | — | Canon RF |
| Burst | — | 12 fps mechanical / 30 fps electronic |
| Video | — | 8K 60p RAW · 4K 120p |
| AF | — | 5,850 user-selectable points, 100% coverage |
| ISO | — | 100–51200 (exp. 50–102400) |
| Stabilization | — | 5-axis IBIS |
Canon EOS R3 · with battery grip
- +Current-gen AF system
- +Proven lens ecosystem
- +Strong video + stills balance
- −Body price excludes lens
- −Heavy for travel (flagship)
- −Learning curve on menus
Canon EOS R5 Mark II
- +8K 60p RAW internal recording
- +Next-gen AI subject detection (5,850 AF points, 100% coverage)
- +Up to 30 fps electronic burst
- −Price jumped from R5
- −Body heats in extended 8K recording
- −Battery life modest
FAQ: Canon EOS R3 · with battery grip vs Canon EOS R5 Mark II
Which is better, Canon EOS R3 · with battery grip or Canon EOS R5 Mark II? +
Canon EOS R5 Mark II scores 95 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.
Is Canon EOS R3 · with battery grip worth the price? +
At $6,299, Canon EOS R3 · with battery grip delivers a Specdex score of 93 — strongest in photo.
Is Canon EOS R5 Mark II worth the price? +
At $4,299, Canon EOS R5 Mark II delivers a Specdex score of 95 — strongest in autofocus.
Does Canon EOS R3 · with battery grip or Canon EOS R5 Mark II last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is better for photo, Canon EOS R3 · with battery grip or Canon EOS R5 Mark II? +
Canon EOS R5 Mark II — leads on photo (96 vs 93). Compared on the photo sub-score.
Which is better for autofocus, Canon EOS R3 · with battery grip or Canon EOS R5 Mark II? +
Canon EOS R5 Mark II — leads on autofocus (98 vs 91). Compared on the autofocus sub-score.