Upgrade Guide
Canon EOS M3→Canon Canon EOS R3
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Worthwhile
Clear improvements over the EOS M3. Whether it justifies the cost depends on which upgrades matter most to your shooting.
What's new in the Canon EOS R3
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Weather sealingAdded — fully sealed body
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StabilisationIBIS added — significant for handheld and video
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Burst rate30fps electronic / 12fps mechanical vs 4.2fps
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Battery life620 shots (CIPA) vs ~250 shots (CIPA)
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Generation6 years newer (2021 vs 2015)
Unchanged or similar
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ResolutionSimilar (24MP)
Suitability by genre
| Genre | EOS M3 | Canon EOS R3 | |
|---|---|---|---|
| Casual | — | ||
| Travel | -3.5 | ||
| Portrait | — | ||
| Street | — | ||
| Vlogging & Video | +2.5 | ||
| Sports & Action | +5.0 | ||
| Wildlife | — | ||
| Photojournalism | — | ||
| Wedding & Events | — |
Full spec comparison
| Spec | EOS M3 | Canon EOS R3 | |
|---|---|---|---|
| Price | £150 | £5,999 | |
| Released | 2015 | 2021 | ↑ |
| Sensor | 24.2MP APS-C CMOS | 24.1MP full-frame BSI stacked CMOS | |
| Resolution | 24MP | 24MP | ↓ |
| Video | 1080p/30p | 6K RAW, 4K/120p, 1080p/180p | |
| Autofocus | Hybrid CMOS AF III (phase-detect + contrast-detect) | Dual Pixel CMOS AF II with Eye Control AF | |
| Stabilisation | — | 8-stop IBIS | |
| Burst Rate | 4.2fps | 30fps electronic / 12fps mechanical | ↑ |
| Battery Life | ~250 shots (CIPA) | 620 shots (CIPA) | ↑ |
| Weight | 366g (body only) | 1015g body only | ↓ |
| Weather Sealed | No | Yes | ↑ |
| Viewfinder | None (optional EVF-DC1 accessory) | 0.76" OLED EVF, 5.76M dots, 120fps | |
| Screen | 3.0" tilting touchscreen, 1.04M dots | 3.2" fully articulating touchscreen | |
| Mount | Canon EF-M mount | Canon RF | |
| Memory Cards | Single SD UHS-I slot | Dual CFexpress Type B |
Compare side-by-side
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