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Sony Cyber-shot DSC-RX100 III vs Sony Cyber-shot DSC-RX100 IV

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

SonyCyber-shot DSC-RX100 IIISonyCyber-shot DSC-RX100 IV
Overview
ReleasedMay 2014July 2015
Image and sensor
Camera typeCompactCompact
Sensor format1.0-type1.0-type
Sensor typeExmor R back-illuminated CMOSExmor RS stacked CMOS with DRAM
Sensor dimensions13.2 × 8.8 mm13.2 × 8.8 mm
Effective resolution20.1 MP20.1 MP
Largest image5472 × 36485472 × 3648
RAW recordingYesYes
Standard ISO range125–12800125–12800
Sensor detail1.0-type optical format; physical dimensions 13.2 × 8.8 mm1.0-type optical format; physical dimensions 13.2 × 8.8 mm; stacked circuitry and attached DRAM memory
Image formatsJPEG and RAW (Sony ARW 2.3); XAVC S, AVCHD 2.0 and MP4 moviesJPEG and RAW (Sony ARW 2.3); XAVC S, AVCHD 2.0 and MP4 movies
ISO detailStandard single-frame ISO 125–12800; extended ISO 80/100; multi-frame noise reduction reaches ISO 25600Standard single-frame ISO 125–12800; extended ISO 80/100; multi-frame noise reduction reaches ISO 25600
Image processorBIONZ XBIONZ X
Lens and shooting
Built-in lens24–70 mm equivalent24–70 mm equivalent
Maximum aperturef/1.8–2.8f/1.8–2.8
Optical zoom2.9×2.9×
StabilisationOptical lens stabilisationOptical lens stabilisation
Maximum continuous burst10 fps16 fps
Lens detailZEISS Vario-Sonnar T*; actual 8.8–25.7 mm; equivalent range applies to 3:2 stills; built-in three-stop ND filterZEISS Vario-Sonnar T*; actual 8.8–25.7 mm; equivalent range applies to 3:2 stills; built-in three-stop ND filter
AutofocusContrast-detection AF; single-shot AF, continuous AF, direct manual focus and manual focus; Lock-on AF and Eye AFContrast-detection AF; single-shot AF, continuous AF, direct manual focus and manual focus; Lock-on AF and Eye AF
ShutterManual mode permits Bulb and 30 seconds to 1/2000 second; other modes have different limitsMechanical shutter permits Bulb and 30 seconds to 1/2000 second in manual mode; electronic shutter reaches 1/32000 second
Burst detailSpeed Priority Continuous reaches approximately 10 fps with focus and exposure fixed at the first frame (Photography Blog). Sony specifies approximately 2.9 fps normal continuous shooting with AF-S.Speed Priority Continuous reaches approximately 16 fps with focus and exposure fixed at the first frame. Normal continuous shooting reaches approximately 5.5 fps.
Stabilisation detailOptical still-image stabilisation; movie Intelligent Active mode adds electronic correctionOptical still-image stabilisation; movie Intelligent Active mode adds electronic correction
FlashManually raised built-in flash; no accessory shoeManually raised built-in flash; no accessory shoe
Video
Highest video resolution1920 × 1080 at 50 fps3840 × 2160 at 25 fps
Video detailPAL Full HD up to 1920 × 1080 at 50p; NTSC up to 60p. XAVC S at up to 50 Mbps; high-speed 100p PAL or 120p NTSC uses 1280 × 720. No 4K movie recording.PAL 4K up to 3840 × 2160 at 25p; NTSC up to 30p or 24p, at 60 or 100 Mbps; 4K clips limited to approximately five minutes. Full HD supports 100p PAL or 120p NTSC. Separate HFR captures at 250/500/1000 fps PAL or 240/480/960 fps NTSC for approximately two or four seconds, then encodes Full HD slow motion; these are lower-resolution sensor readouts, not native Full HD at 1000 fps.
AudioBuilt-in stereo microphone; LPCM, Dolby Digital or AAC audio depending on movie formatBuilt-in stereo microphone; LPCM, Dolby Digital or AAC audio depending on movie format; HFR recording has no audio
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3″3″
Screen dots1,228,8001,228,800
TouchscreenNoNo
Tilting screenYesYes
Display detailLCD tilts approximately 180° upwards and 45° downwards; dots are subpixels, not image pixelsLCD tilts approximately 180° upwards and 45° downwards; no touchscreen (Photography Blog and Expert Reviews)
Viewfinder detailRetractable 0.39-type OLED with 1,440,000 dots, 100% coverage and approximately 0.59× equivalent magnificationRetractable 0.39-type OLED with approximately 2.35 million dots, 100% coverage and approximately 0.59× equivalent magnification
Connections and design
Wi-FiYesYes
Battery life (maker's claim)320 photographs280 photographs
Body weight263 g271 g
Release detailSony Japan specifies 30 May 2014 retail availability; Sony's US announcement specifies June 2014. Sony describes RX100 and RX100 II as continuing models alongside III.Sony specifies July 2015 US retail availability and 31 July 2015 in Japan. The month is retained because the US notice supplies no day. Sony's Japanese announcement expands the RX range rather than retiring earlier models.
Recording mediaSD, SDHC, SDXC and Memory Stick variants; XAVC S requires Class 10 SDXCSD, SDHC, SDXC and Memory Stick variants; 100 Mbps XAVC S requires UHS-I U3 SDXC
PortsMulti/Micro USB with USB 2.0; Micro HDMIMulti/Micro USB with USB 2.0; Micro HDMI
Wireless connectionsWi-Fi 802.11b/g/n at 2.4 GHz; NFC One-touch connectionWi-Fi 802.11b/g/n at 2.4 GHz; NFC One-touch connection
Battery life detailNP-BX1; CIPA maker claim approximately 320 photographs using LCD or 230 using viewfinderNP-BX1; CIPA maker claim approximately 280 photographs using LCD or 230 using viewfinder
ChargingUSB charging; USB power supply during shooting and playbackUSB charging; USB power supply during shooting and playback
DimensionsApproximately 101.6 × 58.1 × 41 mm (width × height × depth)Approximately 101.6 × 58.1 × 41 mm (width × height × depth)
Weight detailApproximately 263 g body only; 290 g with battery and media. Photography Blog's narrative incorrectly describes the body-only figure as loaded weight; Sony's specification is used.Approximately 271 g body only; 298 g with battery and media
ColoursBlackBlack

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