OM System OM-1 Mark IIvs Ricoh GR III

GearFrame · Updated March 2026

OM System OM System OM-1 Mark II OM System OM System OM-1 Mark II (2024) From £1999 Best for Wildlife, birds & outdoor sports View OM System OM-1 Mark II
VS
Ricoh Ricoh GR III Ricoh Ricoh GR III (2019) From £899 Best for Street photography & urban reportage View Ricoh GR III

Which should you buy?

Wildlife, Birds & Outdoor Sports — OM System OM-1 Mark II (2024): OM System's most capable camera — 120fps AF burst, AI subject detection, and IP53 weather sealing make it the best-value pro wildlife camera.

Street Photography & Urban Reportage — Ricoh GR III (2019): The purest street photography compact — APS-C sensor, 28mm perspective, IBIS, and cult-favourite JPEG rendering in a shirt pocket.

↓ Full specifications below

OM System OM-1 Mark II (2024)

  • You shoot wildlife, birds in flight, or fast-moving action where tracking accuracy is critical
  • You need extreme weather sealing for shooting in rain, dust, mud, or freezing cold
  • You're invested in the MFT ecosystem and want the absolute best body available

Ricoh GR III (2019)

  • You shoot street, travel, or documentary and want APS-C quality in a coat or shirt pocket
  • You want a camera you'll genuinely always carry without thinking about it
  • You appreciate sharp, characterful images from a fixed 28mm equivalent focal length

Quick take: The ricoh gr iii has the highest resolution at 24mp; the ricoh gr iii is the most affordable; only the om system om-1 mark ii is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification OM System OM-1 Mark II (2024)Ricoh GR III (2019)
Price £1,999 £899
Sensor 20MP Micro Four Thirds Live MOS 24.2MP APS-C CMOS
Resolution 20.0MP 24.2MP
Video 4K/60p, 1080p/240p, 4K HLG 1080p/60p
Autofocus AI subject detection AF (birds, animals, motorsport) Hybrid contrast/phase-detect AF with subject detection
Stabilisation 8.5-stop IBIS 4-stop IBIS (Shake Reduction)
Burst Rate 120fps with AF tracking 4fps
Battery Life 520 shots (CIPA) 200 shots (CIPA)
Weight 599g body only 257g
Dimensions 134.8 × 91.6 × 72.7mm 109.4 × 61.9 × 33.2mm
Weather Sealed Yes No
Viewfinder 0.83" OLED EVF, 5.76M dots, 120fps None
Screen 3.0" fully articulating touchscreen 3.0" fixed touchscreen
Mount Micro Four Thirds Fixed 28mm-equiv f/2.8 lens
Memory Cards Dual SD UHS-II Single SD UHS-I
Connectivity USB-C, Wi-Fi, Bluetooth USB-C, Wi-Fi, Bluetooth
⚡ Compare specs side by side OM System OM-1 Mark II prices → Ricoh GR III prices →

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