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OM-D E-M1 Mark III vs OM-D E-M1X

Quick take: The OM-D E-M1 Mark III is the most affordable; only the OM-D E-M1 Mark III is weather sealed.

Where the OM-D E-M1 Mark III wins

  • Cheaper new: £425 vs £479
  • Weight: 580g (with battery)
  • Weather Sealed: Yes
  • Street: 6.2 vs 5.4
  • Travel: 6.0 vs 4.8

Where the OM-D E-M1X wins

  • Battery Life: ~870 shots (CIPA)

16 specs side by side·15 genres scored·UK prices from Wex Photo Video, Clifton Cameras, MPB, eBay and Amazon UK

How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.

Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more

Size comparedbody only, no lens · drawn to one scale
0 25 50 75 100 125 150 OM-D E-M1X 144 mm 147 mm OM-D E-M1 Mark III 134 mm 91 mm
  • OM-D E-M1 Mark III 134 × 91 × 69 mm · 580 g
  • OM-D E-M1X 144 × 147 × 75 mm · 997 g

The OM-D E-M1 Mark III is 10 mm narrower, 56 mm shorter, 6 mm slimmer and 417 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.

Full specificationsthe better value in each row is highlighted
Specification OM-D E-M1 Mark IIIOlympus · 2020OM-D E-M1XOlympus · 2019
Price £425 usedBest£479 used
Sensor 20.4MP Micro Four Thirds CMOS20.4MP Four Thirds Live MOS
Resolution 20.4MP20.4MP
Video C4K/24p, 4K/30p, Full HD 1080p/1204K/30p, C4K/24p, Full HD 120p
Autofocus 121-point all cross-type on-sensor phase detect + contrast AF, face / eye detection, Starry Sky AF121-point cross-type on-sensor phase detect + contrast, Intelligent Subject Detection
Stabilisation 5-axis in-body stabilisation, 7 stops (7.5 with Sync IS)Sensor-shift in-body stabilisation
Burst Rate 60fps (18fps with continuous AF)60fps (18fps with continuous AF)
Battery Life ~420 shots (CIPA)~870 shots (CIPA)Best
Weight 580g (with battery)Best997g (with battery)
Dimensions 134.1 × 90.9 × 68.9mm144.4 × 146.8 × 75.4mm
Weather Sealed YesBestNot weather sealed
Viewfinder OLED EVF, 2.36M dots, 1.48xEVF, 100% coverage, 1.48-1.65x (50 mm lens)
Screen 3.0" vari-angle touchscreen, 1.04M dots3.0" vari-angle touchscreen, 1.04M dots
Mount Micro Four ThirdsMicro Four Thirds
Memory Cards Dual SD slotsDual SD slots
Connectivity USB-C (USB PD), micro HDMI, Wi-Fi, Bluetooth, 3.5mm mic & headphone jacks, RM-CB2 remoteUSB-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.

How they score by genreengine base scores out of 10
Genre
OM-D E-M1 Mark III
OM-D E-M1X
Portrait
6.7/10
6.9/10
Street
6.2/10
5.4/10
Travel
6.0/10
4.8/10
Wedding & Events
6.8/10
7.0/10
Vlogging & Video
5.2/10
4.6/10
Filmmaking
5.6/10
5.7/10
Documentary
6.5/10
5.8/10
Sports & Action
7.7/10
7.7/10
Landscape
5.9/10
5.2/10
Wildlife
7.9/10
7.7/10
Casual
4.8/10
4.3/10
Food
6.8/10
6.6/10
Macro
7.9/10
6.0/10
Architecture
6.0/10
6.0/10
Astrophotography
5.7/10
4.8/10

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 →

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