OM-3vs Ricoh GR IIIx

GearFrame · Updated March 2026

OM System OM-3 OM System OM-3 (2024) Starting from £999 new Best for Travel, outdoor & adventure photography View OM-3
VS
Ricoh Ricoh GR IIIx Ricoh Ricoh GR IIIx (2021) Starting from £999 new Best for Street portraits & reportage View Ricoh GR IIIx

GearScore™ Verdict — Which should you buy?

Travel, Outdoor & Adventure Photography — OM-3 (2024): The ideal mid-range OM System camera — weather sealed, class-leading IBIS, and superb computational features in a compact body.

Street Portraits & Reportage — Ricoh GR IIIx (2021): APS-C in a shirt pocket with a 40mm perspective — the GR IIIx is the ideal street portrait compact for photographers who want a slightly tighter frame.

↓ Full specifications below

OM-3 (2024)

  • Outdoor and adventure photographers who need weather sealing and compact size
  • Wildlife and bird photographers wanting improved AF over the OM-5
  • Travel shooters who want a rugged, lightweight MFT system
  • OM-5 or E-M5 III owners wanting better autofocus without going to the OM-1

Ricoh GR IIIx (2021)

  • Street photographers who want the most pocketable APS-C camera available
  • Ricoh GR III owners who prefer a 40mm equivalent over 28mm
  • Travel photographers who want one discreet camera that fits anywhere
  • Photographers who want a pocketable backup to a larger mirrorless system

Quick take: The ricoh gr iiix has the highest resolution at 24mp; only the om-3 is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification OM-3 (2024)Ricoh GR IIIx (2021)
Price £999 £999
Sensor 20.4MP Live MOS Micro Four Thirds 24.2MP APS-C CMOS
Resolution 20.4MP 24.2MP
Video 4K/60p (10-bit), C4K/30p, 1080p/120p 1080p/60p
Autofocus Phase-detect AF — subject recognition (human, animal, bird, vehicle) Hybrid contrast/phase-detect AF with subject detection
Stabilisation IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses) 4-stop IBIS (Shake Reduction)
Burst Rate 10fps mechanical, 30fps electronic with AF 4fps
Battery Life ~400 shots (CIPA) 200 shots (CIPA)
Weight 414g (with battery) 262g
Dimensions 122.3 × 84.6 × 49.4mm 111.2 × 61.4 × 33.2mm
Weather Sealed Yes No
Viewfinder EVF, 2.36M dots, 0.74× magnification None
Screen 3.0" fully articulating touchscreen 3.0" fixed touchscreen
Mount Micro Four Thirds Fixed 40mm-equiv f/2.8 lens
Memory Cards Single SD UHS-II slot Single SD UHS-I
Connectivity USB-C, Wi-Fi, Bluetooth USB-C, Wi-Fi, Bluetooth
Genre OM-3Ricoh GR IIIx
Travel
9.0
9.0
Wildlife
9.0
Landscape
9.0
4.0
Street
9.0
9.0
Portrait
7.0
7.0
Vlogging & Video
7.0
4.0
Documentary
9.0
⚡ Compare specs side by side OM-3 prices → Ricoh GR IIIx prices →

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