📷 Cameras 🔭 Lenses 🎒 Accessories 🏷 Brands

OM-3vs GR IIIx HDF

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 GR IIIx HDF Ricoh GR IIIx HDF (2024) Starting from £999 new Best for Street & documentary photography with a distinctive aesthetic View GR IIIx HDF

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 & Documentary Photography With A Distinctive Aesthetic — GR IIIx HDF (2024): The GR IIIx with a built-in dream filter — for photographers who want the GR's legendary APS-C quality with an added layer of analogue magic.

↓ 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

GR IIIx HDF (2024)

  • GR IIIx fans who want the HDF bloom effect without using post-processing
  • Street photographers who want a distinctive, instantly recognisable aesthetic
  • Film photography enthusiasts who want to replicate analogue optical character digitally
  • GR III owners ready to upgrade to the 40mm equivalent perspective

Quick take: The gr iiix hdf 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)GR IIIx HDF (2024)
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 1920 × 1080 / 60fps
Autofocus Phase-detect AF — subject recognition (human, animal, bird, vehicle) Phase/contrast hybrid CDAF with Snap Focus
Stabilisation IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses) 3-axis Shake Reduction (SR) — 4 stops
Burst Rate 10fps mechanical, 30fps electronic with AF 4fps continuous
Battery Life ~400 shots (CIPA) ~200 shots (CIPA)
Weight 414g (with battery) 262g body only
Dimensions 122.3 × 84.6 × 49.4mm 122.5 × 69.5 × 35.2mm
Weather Sealed Yes No
Viewfinder EVF, 2.36M dots, 0.74× magnification None — rear LCD only
Screen 3.0" fully articulating touchscreen 3.0" fixed LCD touchscreen, 1.037M dots
Mount Micro Four Thirds Fixed GR Lens 26.1mm f/2.8 (40mm equivalent)
Memory Cards Single SD UHS-II slot Single SD/SDHC/SDXC slot
Connectivity USB-C, Wi-Fi, Bluetooth USB-C, Wi-Fi, Bluetooth
Genre OM-3GR IIIx HDF
Travel
9.0
9.0
Wildlife
9.0
4.0
Landscape
9.0
7.0
Street
9.0
9.0
Portrait
7.0
7.0
Vlogging & Video
7.0
Sports
4.0

GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →

⚡ Compare specs side by side OM-3 prices → GR IIIx HDF prices →

More comparisons with OM-3

Camera family history