Upgrade Guide
Canon EOS R100→Canon EOS M
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
→
Skip it
The EOS M offers little measurable spec improvement over the EOS R100. Spend the money on glass instead.
Unchanged or similar
-
Resolution18MP (down from 24MP — optimised for low light)
-
StabilisationIBIS not present in new body
Suitability by genre
| Genre | EOS R100 | EOS M | |
|---|---|---|---|
| Portrait | -3.0 | ||
| Travel | -1.0 | ||
| Street | -1.0 | ||
| Video | — | ||
| Wildlife | — | ||
| Casual | — | ||
| Vlogging & Video | — |
Full spec comparison
| Spec | EOS R100 | EOS M | |
|---|---|---|---|
| Price | £529 | £80 | |
| Released | 2023 | 2012 | ↓ |
| Sensor | 24.1MP APS-C CMOS | 18MP APS-C CMOS | |
| Resolution | 24MP | 18MP | ↓ |
| Video | 4K/30p (slight crop), 1080p/60p | 1080p 30fps | |
| Autofocus | Dual Pixel CMOS AF, face detection, subject tracking | Contrast-detect AF only — notoriously slow | |
| Stabilisation | None (no IBIS) | — | |
| Burst Rate | 6.5fps mechanical | 4fps | ↓ |
| Battery Life | ~270 shots (CIPA) | ~230 shots (CIPA) | ↓ |
| Weight | 356g (body, battery, card) | 262g (body only) | ↑ |
| Weather Sealed | No | No | |
| Viewfinder | EVF, 2.36M dots, 0.59× magnification | None (optional EVF accessory) | |
| Screen | 3.0" fixed touchscreen, 1.04M dots | 3.0" fixed touchscreen, 1.04M dots | |
| Mount | Canon RF-mount | Canon EF-M mount | |
| Memory Cards | Single SD UHS-II | 1× SD/SDHC/SDXC |
Compare side-by-side
⚖️ Compare these cameras
See EOS R100 and EOS M next to each other with our interactive comparison tool.
Get a personalised upgrade score
Run the upgrade checker →
Tell us what you shoot and we'll score the EOS M against your specific genres — not just specs.
Other upgrades from the EOS R100
Related buying guides
Camera family history