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Sony Alpha 7R IV vs Sony Alpha 7R VI

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

Better figure, where one is clearly better

SonyAlpha 7R IVSonyAlpha 7R VI
Overview
ReleasedSeptember 2019June 2026
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatFull frameFull frame
Sensor typeBack-illuminated Exmor R CMOSBack-illuminated fully stacked Exmor RS CMOS
Sensor dimensions35.7 × 23.8 mm35.9 × 24 mm
Effective resolution61 MP66.8 MP
Largest image9504 × 63369984 × 6656
RAW recordingYesYes
Standard ISO range100–32000100–32000
Sensor detailApproximately 62.5 million total pixels; 3:2 sensor. Pixel Shift Multi Shooting combines 16 exposures into a 19008 × 12672 image using Imaging Edge on a computer; requires a stationary camera and subject. This is separate from the normal single-shot resolution.Approximately 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, RAW and RAW+JPEG; Sony ARW 2.3 compressed or uncompressed RAW.JPEG, HEIF, RAW, RAW+JPEG and RAW+HEIF; Sony ARW 6.0. Compressed HQ RAW available.
ISO detailStandard still-image ISO 100–32000; expanded ISO 50–102400.Standard 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 and front-end LSI.BIONZ XR2 with integrated AI processing unit.
Lens and shooting
Lens mountSony E-mountSony E-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst10 fps30 fps
AutofocusFast Hybrid AF with 567 full-frame phase-detection points and 425 contrast points; phase points cover approximately 74% of the image. Real-time tracking and human/animal Eye AF for stills; human Eye AF in movies. APS-C point counts differ.Fast 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.
Shutter–Mechanical 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 detailUp to approximately 10 fps in Hi+ with AF/AE tracking; approximately 8 fps in Hi. Sony lists 68 compressed RAW or 30 uncompressed RAW frames under its test conditions. Speed and buffer depend on settings and lens; some lenses need firmware updates.Up 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; Sony claims 5.5 stops under CIPA pitch/yaw conditions with Planar T* FE 50mm F1.4 ZA and long-exposure noise reduction off.Five-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.
Video
Highest video resolution3840 × 2160 at 30 fps7680 × 4320 at 30 fps
Video detailJapanese specification lists XAVC S 4K at 30p or 24p and up to 100 Mbps; headline maximum reflects Japanese/NTSC mode. Super 35mm uses full-pixel readout without binning with a narrower field of view; full-frame 4K is a separate mode. HLG, S-Log2 and S-Log3; 8-bit 4:2:2 HDMI output. Full HD 120p is a lower-resolution mode.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 and headphone sockets. Multi Interface Shoe supports digital audio with compatible accessories.Built-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 dots1,440,0002,095,104
TouchscreenYesYes
Tilting screenYesYes
Display detailTFT LCD tilts approximately 107° up and 41° down; touch focus and touchpad operation. Original ILCE-7RM4 has 1,440,000 dots; the later ILCE-7RM4A has a different display.Four-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 detail0.5-inch electronic viewfinder with 5,760,000 dots, 100% coverage and approximately 0.78× magnification; selectable 60/120 fps display.0.64-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)670 photographs710 photographs
Body weight580 g622 g
Release detailSony Japan specifies 6 September 2019 for ILCE-7RM4; this is the Japanese on-sale date, not a UK release claim. July reservations preceded sale.Sony 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 mediaTwo SD/SDHC/SDXC slots, both supporting UHS-II; simultaneous, relay and separate-media recording.Two multi-format slots, each accepting CFexpress 2 Type A or UHS-I/UHS-II SD media.
PortsUSB Type-C, Multi/Micro USB, Micro HDMI, microphone and headphone sockets, sync terminal and Multi Interface Shoe.Two 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 connectionsWi-Fi IEEE 802.11a/b/g/n/ac at 2.4/5 GHz, NFC and Bluetooth smartphone connection.Wi-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 670 photographs with LCD or 530 with viewfinder; USB charging and power supported.NP-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.
DimensionsApproximately 128.9 × 96.4 × 77.5 mm (width × height × maximum depth); grip-to-monitor depth 67.3 mm.Approximately 132.7 × 96.9 × 82.9 mm (width × height × maximum depth); grip-to-monitor depth 72.8 mm.
Weight detailApproximately 580 g body only; 665 g with battery and memory card; lens excluded.Approximately 622 g body only; 713 g with battery and memory card; lens excluded.
In the boxPower cord, NP-FZ100 battery, cable protector, BC-QZ1 charger, shoulder strap, body cap, accessory shoe cap, eyepiece cup and USB Type-C cable, according to Sony Japan.NP-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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