Sony A7 II vs A7 III

The A7 III is one of the most popular full frame mirrorless cameras to date.

The A7 II, despite its age, remains on the market at an attractive price. How do the two compare?



They both have 24MP but the A7 III features a BSI sensor that gives more dynamic range. It also has a 1.8x faster sensor readout thanks to the front-end LSI chip.


ISO range

The A7 III can go up to 51200 ISO, or 204800 with the extended range. The A7 II has a range of 100 to 25600 ISO.

51200 ISO!



The A7 III has more phase detection points (693 vs 117), twice the focusing speed in low light and twice the tracking speed. Eye AF works in AF-C and with animals.


Continuous shooting

The A7 III has an electronic/silent shutter option and the shooting speed has increased from 5fps to 10fps.


Image stabilisation

Both cameras have 5-axis IBIS. The A7 III can compensate up to 5Ev while the A7 II tops out at 4.5Ev. In our experience however, this difference is rarely relevant.



The A7 II can record in Full HD up to 60p. The A7 III can record 4K video up to 30p, 1080p up to 120p, and has additional settings including S-Log3 and HLG (Hybrid Log Gamma).


Battery life

The A7 III has a bigger battery that doubles the battery life in comparison to the A7 II. 


Viewfinder and LCD

The A7 II LCD has no touch sensitivity, unlike the A7 III. The EVF is the same OLED panel with 2.3M dots but the A7 III has a higher magnification (0.78x vs 0.71x).


Design tidbits

The A7 III has an AF joystick, an improved menu system, bluetooth, USB C and two SD card slots, unlike the A7 II.



The A7 II can be found for $1400, £1000 or €1000. The A7 III starts at $2000, or £1750 / €1950. (Prices as of early January 2021)

The A7 III is everything we could have hoped for from the A7 II’s successor:  an improved design, new sensor, 4K video and better AF.