Sony a6600 vs Sony a6700 — Which Is Better?

The Sony a6600 and Sony a6700 are mirrorless cameras built around Sony's APS-C E mount, so either body uses the same native lenses. Both offer in-body stabilisation, an electronic viewfinder and a flip-out touch screen, making them straightforward all-rounders for stills and video.

The a6600 arrived in 2019 and the a6700 in 2023, but their body measurements are close. The a6700 measures 122 x 69 x 64 mm against 120 x 67 x 69 mm, and it weighs 493 g against the a6600's 503 g, a 10 g difference in the newer body's favour.

The a6700 gives you more room to crop distant wildlife or print larger, with 26 MP against the a6600's 24.2 MP. For moving subjects it offers 759 autofocus points against 425 on the a6600, and its Bionz XR processor is the newer generation of the two.

For action stills they are evenly matched in burst capability, both shooting at up to 11 fps with a top shutter speed of 1/4000 second. The a6600 offers a wider standard ISO range, from 50 up to 102400, against 100 to 32000 on the a6700.

The a6700 is the stronger choice for slow motion, with a maximum frame rate of 120 fps against the a6600's 30 fps. Both cameras cap out at 4K resolution, so the a6700's advantage lies in slowing fast action, such as a gymnast's routine or a bird taking flight, rather than in sharper footage.

For editing flexibility, the a6700 records in formats including XAVC S-I, XAVC HS and H.265, while the a6600 offers MPEG-4, AVCHD and XAVC S. Both cameras include a built-in interval timer for timelapse work, so neither needs an external trigger for day-to-night sequences.

Shooting comfort is shared between them: both provide a 3-inch flip-out touch LCD, weather sealing, Wi-Fi and Bluetooth for wireless transfer and remote control, and both accept an external flash. Neither body includes GPS, so location tagging depends on a connected phone on either camera.

The a6700's rear screen has more display dots for reviewing focus and detail, with 1,036,800 against the a6600's 921,600. That helps when checking critical shots like portraits or product frames before you leave the scene.

For long stills days, the a6600 is the better endurance pick, rated for 810 shots per charge against 570 for the a6700. Both use the same NP-FZ100 battery, charge over USB and offer a single memory card slot, so neither provides card redundancy for paid event work.

The card support differs in useful ways. The a6700 accepts SD, SDHC and SDXC cards with UHS-II compatibility for faster offload after a shoot, while the a6600 pairs SD support with Memory Stick Pro Duo.