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Sony Alpha 6600 vs Sony Alpha 7R VI

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

Better figure, where one is clearly better

SonyAlpha 6600SonyAlpha 7R VI
Overview
ReleasedOctober 2019June 2026
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatAPS-CFull frame
Sensor typeExmor CMOSBack-illuminated fully stacked Exmor RS CMOS
Sensor dimensions23.5 × 15.6 mm35.9 × 24 mm
Effective resolution24.2 MP66.8 MP
Largest image6000 × 40009984 × 6656
RAW recordingYesYes
Standard ISO range100–32000100–32000
Sensor detailApproximately 25.0 million total pixels; 3:2 aspect ratioApproximately 72.6 million total pixels; effective resolution is up to 66.8 MP for stills and 55.8 MP for movies. Four- or 16-frame Pixel Shift Multi Shooting requires computer compositing; extended RAW processing modes are separate from the 9984 × 6656 normal still output.
Image formatsJPEG, compressed RAW and RAW+JPEG; ARW 2.3; 14-bit RAW support under Sony's stated conditionsJPEG, HEIF, RAW, RAW+JPEG and RAW+HEIF; Sony ARW 6.0. Compressed HQ RAW available.
ISO detailISO 50 and 102400 are expanded; Auto ISO limits configurableStandard still-image ISO 100–32000; expanded ISO 50–102400. Dynamic Active movie stabilisation limits movie ISO to 100–25600 in the exact Japanese specification.
Image processorBIONZ X with front-end LSIBIONZ XR2 with integrated AI processing unit.
Lens and shooting
Lens mountSony E-mountSony E-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst11 fps30 fps
Autofocus425 phase-detection and 425 contrast-detection points; Real-time Tracking; human/animal Eye AF for stills, human Eye AF for moviesFast Hybrid AF with up to 759 phase-detection points for stills or movies and approximately 94% still-image area coverage. Recognition covers people, animals, birds, insects, cars, trains and aircraft; Auto subject recognition supported. AF-S sensitivity is EV −6 to 20 with F1.2 at ISO 100, or EV −11 to 20 in the specified Bright Monitoring mode.
Shutter30 seconds to 1/4000 second plus Bulb; electronic first curtain and silent shooting; external flash sync 1/160 secondMechanical and electronic shutters; exact Sony specifications list 30 seconds to 1/8000 second for stills, with Bulb for mechanical shooting. Flash sync 1/250 second full-frame or 1/320 second APS-C with compatible Sony flash; electronic first curtain supported.
Burst detailMechanical Hi+ up to 11 fps with AF/AE tracking, or silent shooting up to 8 fps; 116 Standard JPEG, 115 Fine JPEG, 99 Extra Fine JPEG, 46 RAW or 44 RAW+JPEG imagesUp to approximately 30 fps blackout-free electronic Hi+ with AF/AE tracking and up to 60 AF/AE calculations per second; mechanical Hi+ up to 10 fps. Maker buffer figures include 215 fine JPEG, 150 RAW or 65 compressed HQ RAW frames; card and recording conditions affect results. Pre-Capture and continuous-speed boost supported; lens compatibility affects maximum speed.
Stabilisation detailFive-axis sensor shift; five-stop CIPA pitch/yaw claim with Sonnar T* FE 55mm F1.8 ZA and long-exposure noise reduction off; correction depends on lensFive-axis sensor shift; Sony claims 8.5 stops at the centre and 7.0 at the periphery under CIPA 2024 pitch/yaw/roll conditions with FE 50mm F1.2 GM and long-exposure noise reduction off. Dynamic Active video stabilisation narrows the field of view more than Active mode.
FlashNo built-in flash; external flash supported through Multi Interface Shoe–
Exposure controlsPASM, auto and scene modes, DRO, Auto HDR and interval shooting–
Video
Highest video resolution3840 × 2160 at 30 fps7680 × 4320 at 30 fps
Video detailXAVC S 4K up to 30p/24p at 100 Mbps in Japanese NTSC specification; Full HD up to 120p. Full-pixel readout without binning; S-Log2, S-Log3 and HLG profiles; human Eye AF in movies.XAVC HS 8K at approximately 30p/25p/24p supports 10-bit 4:2:2 or 4:2:0. 8K oversamples from 8.2K and narrows the field of view. Full-frame 4K 60p is uncropped; uncropped 4K 120p requires 4K angle-of-view priority On. Dual Gain Shooting works only at 4K 30p or lower. Sony's 120-minute 8K claim uses 30p 200 Mbps 4:2:0 10-bit, temperature setting High, monitor open and 25°C ambient; it is not an unconditional recording limit.
AudioStereo microphone; 3.5 mm microphone input and headphone outputBuilt-in stereo microphone and 3.5 mm microphone/headphone sockets. Optional XLR-A4 enables up to 96 kHz 32-bit float four-channel in-camera recording through the digital-audio Multi Interface Shoe; this is not an internal-microphone specification.
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3″3.2″
Screen dots921,6002,095,104
TouchscreenYesYes
Tilting screenYesYes
Display detailScreen tilts approximately 180° up or 74° down; touch focus, shutter, tracking and touchpadFour-axis TFT LCD tilts approximately 98° up and 40° down, opens 180° sideways and rotates 270° in the open position; automatic vertical information display supported.
Viewfinder detail0.39-type OLED, 2,359,296 dots; approximately 0.70× 35 mm-equivalent magnification; 60/120 fps display modes0.64-inch Quad-XGA OLED with 9,437,184 dots and approximately 0.90× magnification; 60/120 fps display. Sony specifies DCI-P3-equivalent gamut and 10-bit HDR display.
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)810 photographs710 photographs
Body weight418 g622 g
Release detailSony Hong Kong states availability from the end of October 2019; month precision is retainedSony UK specifies availability from June 2026; month precision is retained. Sony Japan separately specifies 5 June 2026 for ILCE-7RM6, which is not treated as the UK sale day.
Recording mediaOne shared SD/Memory Stick slot; SDHC/SDXC UHS-ITwo multi-format slots, each accepting CFexpress 2 Type A or UHS-I/UHS-II SD media.
PortsMulti/Micro USB, Micro HDMI Type D, microphone/headphone sockets and Multi Interface ShoeTwo USB Type-C ports; port 1 supports 10 Gbps USB 3.2, port 2 supports 480 Mbps USB 2.0. Full-size HDMI, microphone and headphone sockets, sync terminal and digital-audio Multi Interface Shoe; no Micro USB terminal.
Wireless connections2.4 GHz Wi-Fi, NFC and Bluetooth smartphone location linkingWi-Fi IEEE 802.11a/b/g/n/ac/ax at 2.4/5/6 GHz and Bluetooth 5.3; no NFC in maker specifications.
Battery life detailNP-FZ100; CIPA approximately 810 photographs with LCD or 720 with viewfinderNP-SA100, 2670 mAh; CIPA approximately 710 photographs with LCD or 600 with viewfinder. USB Type-C Power Delivery charging and power supported; Sony Japan requires a 27 W or higher compatible supply/cable for the specified in-camera charging setup.
ChargingIn-camera USB charging and USB power supply–
Dimensions120.0 × 66.9 × 69.3 mm; depth from grip to monitor 59.0 mmApproximately 132.7 × 96.9 × 82.9 mm (width × height × maximum depth); grip-to-monitor depth 72.8 mm.
Weight detailApproximately 418 g body only; 503 g with battery and memory cardApproximately 622 g body only; 713 g with battery and memory card; lens excluded.
MaterialsMagnesium alloy design with dust and moisture resistance; not guaranteed in all conditions–
In the boxNP-FZ100 battery, AC-UUD12 adapter, shoulder strap, body cap, accessory shoe cap, eyepiece cup and Micro USB cable (Japanese specification); kit lens where selectedNP-SA100 battery, BC-SAD1 charger, cable clamper, shoulder strap, body cap, accessory shoe cap and eyepiece cup, according to Sony UK.

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