The Cyber-shot is a 1 inch sensor based camera on the other hand the Rioch GR is a APS-C sensor sensor based camera… however both the camera comes at the same price range… take a look at the major difference below…
Sony Cyber-shot DSC-RX100 III vs. Ricoh GR Specification Comparison Table.
Megapixel: Sony RX100 M3 comes with a 20.1MP 1″ Exmor R BSI CMOS Sensor, Having more megapixels is not bad, you get bit more room to crop your images without any problem,
Bigger Sensor Size: Ricoh GR have bit bigger sensor than Sony Cyber-shot DSC-RX100 III. Ricoh GR features bigger sensor size than Sony Cyber-shot DSC-RX100 III; hence you get better dynamic range, improved High ISO performance and better color and contrast reproduction compared to Sony Cyber-shot DSC-RX100 III.
Optical Zoom: Sony Cyber-shot DSC-RX100 III has 1.9x more optical Zoom than Ricoh GR.
Aperture Range: Sony Cyber-shot DSC-RX100 III compared with better aperture range compared to Ricoh GR. Bright lenses help you to capture more light, sensor captures less noise during low-light condition, create more DOF, better colour and contrast reproduction.
Macro: Sony Cyber-shot DSC-RX100 III features macro capture range of 5cm and Ricoh GR is limited to 10cm; hence Sony Cyber-shot DSC-RX100 III will capture bigger life size macro subjects compared to Ricoh GR.
More AF Points: Both camera features contrast detect AF system, however based image processor speed the Sony RX100 M2 will do faster AF than the Rioch GR camera.
Better low light performance – The Ricoh GR have more ISO range compared to Sony Cyber-shot DSC-RX100 III, The Standard ISO range of Ricoh GR is 100-25600, on the other hand Sony Cyber-shot DSC-RX100 III standard ISO range is 125-12800 and expandable ISO range is 80-12800.
Better Shutter Range: Ricoh GR features better shutter range compared to Sony Cyber-shot DSC-RX100 III.
Top Continuous shooting speed: Sony Cyber-shot DSC-RX100 III features fast shooting speed (10fps vs. 4fps) compared to Ricoh GR
Sony RX100 III Video Mode: Sony RX100 III features full HD video recording @ 60 and 24 fps frame rate.
Supported formats AVCHD Ver. 2.0 codec is used for highly detailed image quality that translates well to editing and sharing on HDTVs, additionally, an external microphone can be used in conjunction with the multi interface shoe.
Ricoh GR Video Mode: Ricoh GR features full HD video recording @ 30 and 25 fps frame rate. HD video recording @ 60 fps and 30 fps.
Supported formats AVI, MPEG-4 AVC/H.264.
Display: Sony Cyber-shot DSC-RX100 III comes with a large 3.0″ LCD Rear Screen Tilt (1,228,800 pixels), the screen is Tiltable to a specification direction on the other hand Ricoh GR comes with, the screen can move in multiple angles.
Viewfinder: Sony Cyber-shot DSC-RX100 III features EVF 100% viewfinder on the other hand Ricoh GR have doesn’t viewfinder available.
Battery Life (CIPA): Sony Cyber-shot DSC-RX100 III battery rating is 320 shots and other hand Ricoh GR battery rating is 290 shots. According to CIPA.
Wireless: The Sony RX100 M3 features Wi-Fi and NFC connectivity, linked mobile device can also display a live view image on its screen and, using Smart Remote Control; remotely control the camera’s shutter release.
Dimensions: Sony Cyber-shot DSC-RX100 III is smaller than Ricoh GR.
Weight: Ricoh GR lightweight than Sony Cyber-shot DSC-RX100 III.
Verdict: Its no doubt that Rioch will produce better image quality compared to Sony since it have bigger sensor… but Sony on the other hand is very pocket-able (recommended for travelographers) and also features optical zoom … final choice is yours.
Buy Sony RX100 M III Camera from Amazon | Buy Ricoh GR from Amazon