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Sony Alpha 7R IV vs Sony Alpha 7R IVA

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

Better figure, where one is clearly better

SonyAlpha 7R IVSonyAlpha 7R IVA
Overview
ReleasedSeptember 2019June 2021
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatFull frameFull frame
Sensor typeBack-illuminated Exmor R CMOSBack-illuminated Exmor R CMOS
Sensor dimensions35.7 × 23.8 mm35.7 × 23.8 mm
Effective resolution61 MP61 MP
Largest image9504 × 63369504 × 6336
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 62.5 million total pixels; 3:2 sensor. Four- or 16-frame Pixel Shift Multi Shooting requires computer compositing and a stationary camera and subject.
Image formatsJPEG, RAW and RAW+JPEG; Sony ARW 2.3 compressed or uncompressed RAW.JPEG, RAW and RAW+JPEG; Sony ARW 2.3 compressed or uncompressed RAW.
ISO detailStandard still-image ISO 100–32000; expanded ISO 50–102400.Standard still-image ISO 100–32000; expanded ISO 50–102400.
Image processorBIONZ X and front-end LSI.BIONZ X and front-end LSI.
Lens and shooting
Lens mountSony E-mountSony E-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst10 fps10 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 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.
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 10 fps mechanical Hi+ with AF/AE tracking; approximately 8 fps in Hi with live view. Sony's exact IVA feature page lists approximately 7 fps silent electronic Hi+. Maker buffer claim is 68 compressed RAW or 30 uncompressed RAW frames; conditions and memory cards affect results.
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 5.5 stops under CIPA pitch/yaw conditions with Planar T* FE 50mm F1.4 ZA and long-exposure noise reduction off.
Video
Highest video resolution3840 × 2160 at 30 fps3840 × 2160 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.Japanese 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.
AudioStereo microphone; 3.5 mm microphone and headphone sockets. Multi Interface Shoe supports digital audio with compatible accessories.Stereo microphone; 3.5 mm microphone and headphone sockets. Multi Interface Shoe supports digital audio with compatible accessories.
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3″3″
Screen dots1,440,0002,359,296
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.TFT LCD tilts approximately 107° up and 41° down; touch focus and touchpad operation. ILCE-7RM4A uses 2,359,296 dots, compared with 1,440,000 on the original ILCE-7RM4. Sony confirms the display change affects battery ratings without changing body dimensions or weight.
Viewfinder detail0.5-inch electronic viewfinder with 5,760,000 dots, 100% coverage and approximately 0.78× magnification; selectable 60/120 fps display.0.5-inch electronic viewfinder with 5,760,000 dots, 100% coverage and approximately 0.78× magnification; selectable 60/120 fps display.
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)670 photographs660 photographs
Body weight580 g580 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 Japan's product-registration list specifies June 2021 for ILCE-7RM4A; this is the Japanese on-sale month, not a UK release claim. No manufacturer day was found.
Recording mediaTwo SD/SDHC/SDXC slots, both supporting UHS-II; simultaneous, relay and separate-media recording.Two SD/SDHC/SDXC slots, both supporting UHS-II; simultaneous, relay and separate-media recording.
PortsUSB Type-C, Multi/Micro USB, Micro HDMI, microphone and headphone sockets, sync terminal and Multi Interface Shoe.USB Type-C, Multi/Micro USB, Micro HDMI, microphone and headphone sockets, sync terminal and Multi Interface Shoe.
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 at 2.4/5 GHz, NFC and Bluetooth 4.1 smartphone connection.
Battery life detailNP-FZ100; CIPA approximately 670 photographs with LCD or 530 with viewfinder; USB charging and power supported.NP-FZ100; CIPA approximately 660 photographs with LCD or 530 with viewfinder; USB charging and power supported.
DimensionsApproximately 128.9 × 96.4 × 77.5 mm (width × height × maximum depth); grip-to-monitor depth 67.3 mm.Approximately 128.9 × 96.4 × 77.5 mm (width × height × maximum depth); grip-to-monitor depth 67.3 mm.
Weight detailApproximately 580 g body only; 665 g with battery and memory card; lens excluded.Approximately 580 g body only; 665 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.Power 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.

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