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Sony A7 III vs Sony A7 IV

3 · 0 TIE · 3

The A7 III wins 3 of 6 scored specs (battery (cipa), weight); the A7 IV wins 3 (resolution, stabilization). The A7 III is $600 cheaper.

3 WINSBuy it if you want: battery (cipa), weight.Sony's long-running full-frame all-rounder: 24MP, dual card slots and strong battery life suit weddings, travel and hybrid photo-video shooters.
3 WINSBuy it if you want: resolution, stabilization.The best all-rounder for people who shoot both photos and video. It isn't the fastest camera in its class, but it does everything well and has the largest lens catalogue to grow into.
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Size, to scale

OPEN IN SIZE COMPARE →
FRONT (WIDTH × HEIGHT)
TOP (WIDTH × DEPTH), LENS FACING DOWN

Outer sizes are exact, from the makers' dimensions. Shapes are drawn by us to show each body style; the dashed circle is the lens mount at its real diameter.

  • Sony A7 III126.9 × 95.6 × 62.7 mm · 650 g
  • Sony A7 IV131.3 × 96.4 × 79.8 mm · 658 g

Where they differ

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A7 IIIA7 IV
PRICE & SCORE
Price$1,398BEST$1,998
CameraFits score6.87.5BEST
PHOTO
Resolution24.2 MP33 MPBEST
StabilizationIn-body stabilisation. Each stop lets you shoot at half the shutter speed without blur, so 8 stops means very steady handheld shots.5 stops5.5 stopsBEST
AutofocusWhat the camera recognises and tracks automatically, and how dark it can get before focus struggles (lower EV is better in low light).—People, animals, birds · down to −4 EV
VIDEO
Best 4K frame rateThe fastest 4K frame rate. 60p and above lets you slow footage down smoothly, and 120p gives 5× slow motion.4K 30p4K 60p
Crop at 4K 60pWhether 4K 60p uses the full sensor width. A crop makes your lens act longer, so wide shots get harder.No 4K 60p1.5x crop
Rolling shutterHow fast the sensor reads out, measured in lab tests. Slower readout bends fast-moving subjects and quick pans in video and electronic-shutter photos; under 10 ms is very good.—26.8 ms · 4K full width, CineD
Colour depth10-bit records far more colour detail than 8-bit, so footage holds up when you grade it. Worth it if you edit video.8-bit 4:2:010-bit 4:2:2
HDMIFor an external monitor or recorder. Full-size HDMI is sturdier than micro HDMI.MicroFull-size
BODY & HANDLING
Battery (CIPA)Shots per charge on the CIPA standard test, using the rear screen. Real-world numbers are often higher.710 shotsBEST580 shots
WeightBody with battery and card, without a lens.650 gBEST658 g
ViewfinderElectronic viewfinder resolution and magnification. More dots and a bigger magnification give a sharper, larger view.2.36M-dot, 0.78×3.69M-dot, 0.78×
Rear screenFully articulating screens flip to the front for vlogging; tilting screens are quicker for photos at waist or overhead height.TiltingFully articulating
Card slotsTwo slots let you record a backup copy at the same time, which matters for paid work like weddings.2x SD (1 UHS-II)CFexpress A/SD UHS-II + SD UHS-II

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