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Quick take: The OM-D E-M1 Mark II is the most affordable; only the OM-D E-M1 Mark II is weather sealed.
Where the OM-D E-M1 Mark II wins
Where the OM-D E-M1X wins
16 specs side by side·15 genres scored·UK prices from Wex Photo Video, Clifton Cameras, MPB, eBay and Amazon UK
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The OM-D E-M1 Mark II is 10 mm narrower, 56 mm shorter, 6 mm slimmer and 423 g lighter than the OM-D E-M1X.
Drawn to scale from the makers' dimensions (W × H × D). Front shown, depth on the slanted edge.
| Specification | OM-D E-M1 Mark IIOlympus · 2016 | OM-D E-M1XOlympus · 2019 |
|---|---|---|
| Price | £200 usedBest | £479 used |
| Sensor | 20.4MP Micro Four Thirds CMOS | 20.4MP Four Thirds Live MOS |
| Resolution | 20.4MP | 20.4MP |
| Video | C4K/24p, 4K/30p, Full HD 1080p/60 | 4K/30p, C4K/24p, Full HD 120p |
| Autofocus | 121-point all cross-type on-sensor phase detect + contrast AF, face and eye detection | 121-point cross-type on-sensor phase detect + contrast, Intelligent Subject Detection |
| Stabilisation | 5-axis in-body stabilisation, 5.5 stops (CIPA) | Sensor-shift in-body stabilisation |
| Burst Rate | 60fps (18fps with continuous AF) | 60fps (18fps with continuous AF) |
| Battery Life | ~440 shots (CIPA) | ~870 shots (CIPA)Best |
| Weight | 574g (with battery)Best | 997g (with battery) |
| Dimensions | 134.1 × 90.9 × 68.9mm | 144.4 × 146.8 × 75.4mm |
| Weather Sealed | YesBest | Not weather sealed |
| Viewfinder | OLED EVF, 2.36M dots, 1.48x | EVF, 100% coverage, 1.48-1.65x (50 mm lens) |
| Screen | 3.0" vari-angle touchscreen, 1.04M dots | 3.0" vari-angle touchscreen, 1.04M dots |
| Mount | Micro Four Thirds | Micro Four Thirds |
| Memory Cards | Dual SD slots | Dual SD slots |
| Connectivity | USB-C (3.0), micro HDMI, Wi-Fi, 3.5mm mic & headphone jacks, RM-CB2 remote | USB-C, micro HDMI, 3.5mm mic + headphone, PC sync, Wi-Fi, Bluetooth, GPS |
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 →