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Quick take: The OM-D E-M5 III has the highest resolution at 20MP; the OM-D E-M5 is the most affordable.
16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
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OM-D E-M5 III — Travel & Lightweight Outdoor Photography: The lightest weather-sealed MFT camera — compact, travel-friendly, and capable with 7.5-stop IBIS in a body that fits in a jacket pocket.
| Specification | OM-D E-M5Olympus · 2012 | OM-D E-M5 IIIOlympus · 2019 |
|---|---|---|
| Price | £40 usedBest | £659 |
| Sensor | 16.1MP Micro Four Thirds Live MOS | 20.4MP Micro Four Thirds Live MOS |
| Resolution | 16.1MP | 20.4MPBest |
| Video | Full HD 1080/60i | 4K/30p, 1080p/120p |
| Autofocus | Contrast-detect AF, 35 areas, face and eye detection | Hybrid phase/contrast AF with face/eye detection |
| Stabilisation | 5-axis in-body stabilisation | 7.5-stop 5-axis IBIS |
| Burst Rate | 9fps | 30fps electronic / 10fps mechanicalBest |
| Battery Life | ~360 shots (CIPA) | 390 shots (CIPA)Best |
| Weight | 425g (with battery) | 414g (body only)Best |
| Dimensions | 121.9 × 88.9 × 43.2mm | 125.3 × 85.2 × 49.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 1.44M dots | 0.35" OLED EVF, 2.36M dots |
| Screen | 3.0" tilting OLED touch screen, 610k dots | 3.0" fully articulating touchscreen |
| Mount | Micro Four Thirds | Micro Four Thirds |
| Memory Cards | Single SD slot | Single SD UHS-I |
| Connectivity | USB 2.0 multi-connector, micro HDMI, hot shoe, Accessory Port 2 | Micro USB, Wi-Fi, Bluetooth |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →