Compare OM System OM-3 vs Sony RX1R III

In this technical comparison between the OM System OM-3 and the Sony RX1R III, we analyze the key features to help you choose.

Choosing between these two Cameras models often comes down to your budget, with prices around $1,999.99 USD and 5000 USD.

Specifications OM System
OM-3
Sony
RX1R III
OM System OM-3 Sony RX1R III
Launch
Version February 2025 July, 2025
Body
Dimensions 139.3× 88.9× 45.8 mm 113.3×67.9×87.5 mm (4.5×2.7×3.4")
Weight Weight: 496g (including battery and SD card) 498 g (with battery and media)
Mount Micro Four Thirds (MFT) Fixed Lens (ZEISS Sonnar T* 35mm f/2)
Weather sealing IP53-rated (Dustproof, Splashproof, and Freezeproof to -10°C) No (Magnesium alloy chassis, but not rated)
Sensor
Type Stacked BSI Live MOS Exmor R BSI-CMOS
Size 17.3× 13.0 mm (Four Thirds) Full-Frame (35.9×24.0 mm)
Resolution 20.4 Megapixels (Effective) 61.0 Megapixels
ISO range 200 – 25,600 (Expandable to 80–102,400) 100 – 32,000 (Expands to 50 – 102,400)
Stabilization 5-Axis In-Body Image Stabilization (IBIS); 6.5 stops (Body) / 7.5 stops (Sync IS with compatible lenses) Electronic/Digital only (Active Mode for video)
Display & Viewfinder
Rear screen 3.0-inch Vari-angle Touchscreen LCD (1.62M dots) 3.0" Fixed Touchscreen LCD (2.36M dots)
Viewfinder OLED Electronic Viewfinder (2.36M dots), 1.37x magnification (equivalent to 0.69x in 35mm) Fixed 0.39" OLED EVF (2.36M dots, 0.7x mag)
Autofocus
AF Points 1,053 points (All Cross-type) 693 Phase-detection points (78% coverage)
AF System Phase Detection (Cross Quad Pixel AF) and Contrast Detection Fast Hybrid AF with AI Processing Unit
Eye AF AI Detection AF (Humans, Animals, Birds, Vehicles) Real-time Eye AF (Human, Animal, Bird, Insect)
Photo
Continuous shooting Up to 120 fps (S-AF), 50 fps (C-AF with Tracking), and 6 fps (Mechanical Shutter) 5 fps
Formats RAW (12-bit), JPEG, and High-Res Shot (50MP Handheld / 80MP Tripod) JPEG, HEIF, RAW (Compressed/Lossless/Uncompressed)
Video
Max Resolution & FPS C4K / 4K UHD at up to 60p; Full HD at up to 240p (High-Speed) 4K at 30p / 1080p at 120p
Bit-depth 8-bit (H.264) or 10-bit (H.265 / HEVC); supports OM-Log and HLG 10-bit 4:2:2 (Internal & HDMI)
Mic / Headphone ports 3.5 mm Stereo Mini Jacks for both 3.5mm Mic jack (No dedicated headphone jack)
HDMI output Micro-HDMI (Type-D); 4:2:2 10-bit output supported Micro-HDMI (Type-D)
Storage
Card slots 1 slot Single Slot
Type SD / SDHC / SDXC (UHS-II supported) SD / SDHC / SDXC (UHS-II compatible)
Connectivity
Wi-Fi Built-in (2.4 / 5 GHz) Wi-Fi 5 (802.11ac)
Bluetooth Built-in (v4.2 Low Energy) Bluetooth 4.2
USB / HDMI USB-C (USB 3.0) / Micro-HDMI (Type-D) USB-C (3.2 Gen 2) / Micro-HDMI
Battery
Model BLX-1 Lithium-ion NP-FW50 Lithium-Ion
CIPA shots Approx. 590 shots (Standard Mode) Approx. 270 – 300 shots
USB charging Supported (USB-PD Power Delivery supported) Yes (USB Power Delivery supported)
Misc
Inside the box OM-3 Body, BLX-1 Battery, CB-USB13 Cable, Shoulder Strap, Instruction Manual Camera, Battery, Lens Cap, Strap, USB-C Cable
Price $1,999.99 USD 5000 USD
Full Details OM-3 - Full Specifications RX1R III - Full Specifications