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Sony a7 III vs Sony a7 IV

Sony Sony a7 IIISony
Sony a7 III

2018 · $1,798 today

8761
Sony Sony a7 IVSony
Sony a7 IV

2021 · $2,198 today

8873
Image qualityAutofocusVideoErgonomicsSpeedValue
Sony a7 IIISony a7 IV

Dashed outline = score at launch

Why Sony a7 III is better

  • Weight: 650 g vs 659 g(lower)

Why Sony a7 IV is better

No standout numeric advantages.

Verdict

Sony a7 IV leads outright in 6 of 6 dimensions today.

Spec by spec

SpecSony a7 IIISony a7 IV
Sensor & Image
Resolution24.2 MP
ISO Range100-51200
Sensor SizeFull Frame
Autofocus & Performance
AF Points693
Max Burst Rate10 fps
Max Shutter Speed1/8000s
Video
Max Resolution4K30
Bit Depth8-bit
Max video4K 60p
Video bit depth10-bit 4:2:2
Recording limitUnlimited
Build & Handling
Weight650 g659 g
Battery Life710 shots
Sensor
Megapixels33 MP
Sensor formatFull-frame BSI
Max native ISO51,200
Stabilisation5.5-stop IBIS
Autofocus & speed
AF points759
Burst (max)10 fps
Max shutter1/8000 s
Subject detectionHuman, animal, bird
Body & handling
Viewfinder3.68M-dot OLED
Rear screen1.03M-dot vari-angle
Battery life (CIPA)610 shots
Weight650 g659 g
Card slotsCFexpress A + SD
Weather sealingYes