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Nikon Z 6II vs Sony Alpha 7S III

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

Better figure, where one is clearly better

NikonZ 6IISonyAlpha 7S III
Overview
ReleasedNovember 2020September 2020
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatFull frameFull frame
Sensor typeCMOSBack-illuminated Exmor R CMOS
Sensor dimensions35.9 × 23.9 mm35.6 × 23.8 mm
Effective resolution24.5 MP12.1 MP
Largest image6048 × 40244240 × 2832
RAW recordingYesYes
Standard ISO range100–5120080–102400
Sensor detail25.28 million total pixels; image-sensor cleaning and Image Dust Off reference data. Photography Blog and TechRadar identify the sensor as backside-illuminated.Approximately 12.9 million total pixels; 3:2 sensor; anti-static coating and ultrasonic dust reduction
Image formatsNEF RAW 12/14-bit with lossless, compressed or uncompressed options; medium/small RAW restricted to 12-bit lossless; JPEG and simultaneous RAW plus JPEG. DX, square and 16:9 still crops supported.JPEG, 10-bit HEIF and compressed or uncompressed 14-bit RAW (Sony ARW 4.0); XAVC S, XAVC S-I and XAVC HS movies
ISO detailExpandable to equivalent ISO 50–204800; auto ISO availableStandard still-image and movie ISO 80–102400; still-image extension ISO 40–409600; movie extension reaches ISO 409600
Image processorDual EXPEED 6 (Photography Blog and TechRadar)BIONZ XR
Lens and shooting
Lens mountNikon Z mountSony E-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst14 fps10 fps
Lens detailNIKKOR Z lenses; compatible F-mount NIKKOR lenses require an adapter and retain model-dependent restrictionsInterchangeable E-mount; full-frame FE lenses use the whole sensor; APS-C still-image crop available. ILCE-7SM3 is supplied without a lens.
AutofocusHybrid phase/contrast detection, 273 single-point FX positions and human/animal eye detection. Maker sensitivity −4.5 EV or −6 EV with low-light AF, in AF-S at ISO 100, 20°C and f/2.0.Fast Hybrid AF with 759 phase-detection and 425 contrast-detection points in full-frame stills; detection range EV -6 to 20 at ISO 100 with an f/2 lens; Real-time Tracking and human Eye AF in stills and video; animal Eye AF for stills
ShutterMechanical focal-plane, electronic front-curtain and electronic shutters; 1/8000 to 30 seconds, Bulb/Time and manual extension to 900 seconds. Flash sync 1/200 second; Auto FP supported.Mechanical or silent electronic focal-plane shutter; 30 seconds to 1/8000 second plus Bulb; flash sync 1/250 second with Sony flash; selectable electronic first curtain
Burst detailContinuous H extended up to 14 fps; maker 14-bit NEF limit approximately 10 fps. Continuous H 5.5 fps and Continuous L 1–5 fps. TechRadar qualifies maximum 14 fps to 12-bit RAW and single-point AF; buffer/card/settings affect sustained speed.Up to 10 fps Hi+ with AF/AE tracking, 8 fps Hi with live view, 6 fps Mid or 3 fps Lo; Sony claims over 1,000 uncompressed RAW images at 10 fps with a CFexpress Type A card
Stabilisation detailFive-axis image-sensor shift plus supported lens VR; TechRadar describes up to 5 stops of body stabilisationFive-axis sensor-shift correction; maker claim 5.5 stops under CIPA pitch/yaw testing with the FE 50 mm f/1.4 ZA lens and long-exposure noise reduction off; Active movie mode adds electronic correction and narrows the view
FlashNo built-in flash; ISO 518 hot shoe with compatible i-TTL Speedlights and wireless-flash accessoriesNo built-in flash; Multi Interface Shoe supports compatible external flash; flash unavailable with electronic shutter
Exposure controlsAuto/P/S/A/M and three user-setting banks; compensation ±5 EV; matrix, centre-weighted, spot and highlight-weighted metering1200-zone evaluative metering; program, aperture priority, shutter priority and manual modes; exposure compensation ±5 EV, or ±3 EV using the dedicated dial
Video
Highest video resolution3840 × 2160 at 59.94 fps3840 × 2160 at 120 fps
Video detailFirmware 1.10 adds UHD 3840 × 2160 up to 59.94p using DX-based image area and Normal movie quality; full-width UHD up to 29.97p. Full HD up to 119.88p, with 4×/5× slow-motion options. MOV/MP4 H.264, recordings up to 29 minutes 59 seconds with mode/card restrictions; electronic VR, timecode and time-lapse. External N-Log/HLG output; RAW video output requires a paid Nikon service upgrade and compatible recorder, with no RAW output at 4K/60p. UK technical page retains its old anticipated-February2021 wording; current Japan table and maker firmware announcement confirm the added mode.Internal 3840 × 2160 up to 120p NTSC or 100p PAL with 10-bit 4:2:2 options; 120p crops the view by approximately 10%. XAVC S/HS reaches 280 Mbps at 120p; XAVC S-I All-Intra reaches 600 Mbps at 60p. S&Q supports Full HD 240 fps capture with 1420 × 804 sensor readout. HDMI can output 4264 × 2408 16-bit RAW at up to 60p to a compatible external recorder. S-Log2/S-Log3, HLG, timecode and gamma display assist; current Sony specifications include S-Cinetone.
AudioBuilt-in stereo microphones or 3.5 mm external microphone with attenuator; PCM in MOV or AAC in MP4, headphone monitoring availableBuilt-in stereo microphone; 3.5 mm microphone and headphone sockets; digital-audio Multi Interface Shoe; compatible accessories support four-channel 24-bit LPCM
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3.2″3″
Screen dots2,100,0001,440,000
TouchscreenYesYes
Tilting screenYesYes
Display detailTilting touchscreen, approximately 100% coverage and 170° viewing angle; dots count subpixelsSide-opening vari-angle LCD; opens approximately 176° and rotates approximately 270°; touch menus and focus selection
Viewfinder detail0.5-inch Quad-VGA OLED, approximately 3.69 million dots, 100% coverage, 0.8× magnification and 21 mm eyepoint0.64-type Quad-XGA OLED; 9,437,184 dots; 100% coverage; approximately 0.90× magnification with a 50 mm lens at infinity; 60 or 120 fps refresh
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)450 photographs600 photographs
Body weight615 g614 g
Release detailNikon Japan records first sale on 6 November 2020; exact first UK retail day is not independently establishedSony USA specifies September 2020 retail availability. This is ILCE-7SM3 with current maker-supported specification features.
Recording mediaOne CFexpress Type B/XQD slot and one UHS-II SD/SDHC/SDXC slot; overflow, backup, RAW/JPEG separation and card copyingTwo combined CFexpress Type A/SD slots, each supporting UHS-I and UHS-II SDHC/SDXC; simultaneous, relay or separate-format recording
PortsUSB-C SuperSpeed USB, HDMI Type C mini connector, 3.5 mm microphone/headphone sockets and accessory terminal for compatible remote cordsFull-size HDMI Type A, USB-C (USB 3.2 at 5 Gbps), Multi/Micro USB, 3.5 mm microphone and headphone sockets, digital-audio Multi Interface Shoe and vertical-grip connector
Wireless connectionsWi-Fi 802.11a/b/g/n/ac at 2.4/5 GHz and Bluetooth 4.2; SnapBridgeWi-Fi 802.11a/b/g/n/ac at 2.4 and 5 GHz; Bluetooth 5.0; NFC; FTP transfer and smartphone remote control; 5 GHz availability varies by region
Battery life detailEN-EL15c; CIPA monitor approximately 450 shots with power saving or 410 without; EVF 400 with power saving or 340 without. Movie battery claim approximately 100 minutes. Earlier EN-EL15 variants give fewer shots; optional MB-N11/MB-N10 hold two batteries.NP-FZ100; CIPA maker claim approximately 600 photographs using LCD or 510 using viewfinder; actual movie claim approximately 95 minutes with LCD or 80 with viewfinder
ChargingUSB-C charging/power with compatible equipment; in-camera charging supports EN-EL15c/15b; MH-25a external charger, optional EH-7P or compatible AC adapter with EP-5B connectorUSB-C in-camera charging and power supply with USB Power Delivery support
DimensionsApproximately 134 × 100.5 × 69.5 mmApproximately 128.9 × 96.9 × 80.8 mm; depth from grip to monitor 69.7 mm
Weight detailApproximately 615 g body only or 705 g with battery/card, excluding body capApproximately 614 g body only; 699 g with battery and memory card; both exclude lens
MaterialsMagnesium-alloy body and weather sealing described by both reviews; maker operating range 0–40°CMagnesium-alloy body; maker describes dust and moisture resistance without guaranteeing complete protection
In the boxBF-N1 body cap, DK-29 eyecup, EN-EL15c battery, MH-25a charger, HDMI/USB clip, AN-DC19 strap, UC-E24 USB cable and BS-1 shoe cover; charger plug varies by region, current Japan also lists AN-DC26 as a strap alternativeSony Japan lists NP-FZ100 battery, BC-QZ1 charger and mains cable, cable protector, strap, body/shoe caps, eyepiece cup and USB-A to USB-C cable

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