Ricoh GR IIIxvs Sigma fp

GearFrame · Updated March 2026

Ricoh Ricoh GR IIIx Ricoh Ricoh GR IIIx (2021) From £999 Best for Street portraits & reportage View Ricoh GR IIIx
VS
Sigma Sigma fp Sigma Sigma fp (2019) From £1499 Best for Creative filmmakers & experimental photographers View Sigma fp

Which should you buy?

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.

Creative Filmmakers & Experimental Photographers — Sigma fp (2019): The smallest full-frame camera in the world — Cinema DNG RAW and L-mount flexibility in a pocket-sized body that rewards creative shooters.

↓ Full specifications below

Ricoh GR IIIx (2021)

  • You want the GR experience with a slightly tighter, more versatile field of view
  • You shoot portraits, food, or street scenes where 40mm suits better than 28mm wide
  • You want a premium compact that fits in a shirt pocket with better tonal rendering than a phone

Sigma fp (2019)

  • You're a filmmaker building a cinema rig where the smallest full-frame body is essential
  • You want L-mount compatibility to pair with Sigma Art or Leica SL lenses
  • You prioritise video and cinema colour over stills ergonomics and functionality

Quick take: The sigma fp has the highest resolution at 25mp; the ricoh gr iiix is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification Ricoh GR IIIx (2021)Sigma fp (2019)
Price £999 £1,499
Sensor 24.2MP APS-C CMOS 24.6MP full-frame Bayer CMOS
Resolution 24.2MP 24.6MP
Video 1080p/60p 12-bit Cinema DNG RAW, 4K/24p, 1080p/120p
Autofocus Hybrid contrast/phase-detect AF with subject detection Contrast-detect AF with face/eye detection
Stabilisation 4-stop IBIS (Shake Reduction) None (lens-based only)
Burst Rate 4fps 18fps electronic
Battery Life 200 shots (CIPA) 200 shots (CIPA)
Weight 262g 422g body only
Dimensions 111.2 × 61.4 × 33.2mm 112.6 × 69.9 × 45.3mm
Weather Sealed No No
Viewfinder None None
Screen 3.0" fixed touchscreen 3.15" fixed touchscreen
Mount Fixed 40mm-equiv f/2.8 lens Leica L-mount
Memory Cards Single SD UHS-I Single SD UHS-II + CFexpress Type B (via adapter)
Connectivity USB-C, Wi-Fi, Bluetooth USB-C 3.1, Wi-Fi, Bluetooth
⚡ Compare specs side by side Ricoh GR IIIx prices → Sigma fp prices →

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