Sony a6700 vs a7 III

An APS-C body from 2023 against a full-frame body from 2018. Both use the NP-FZ100 battery, a 2.36M-dot finder and 5-axis in-body stabilization rated at 5.0 stops. The a6700 adds AI subject recognition, 4K up to 120p in 10-bit, a vari-angle screen and a lighter body; the a7 III has the larger full-frame sensor, two card slots and more shots per charge.

Sony a6700 body, front three-quarter view with the α6700 badge on the EVF hump — **Sony a6700**26MP APS-C, 5-stop IBIS · launched at $1,399.99 in 2023Image: Sony Electronics

Top view of a Sony a7 III mirrorless camera with a zoom lens — **Sony a7 III**24.2MP full frame, 5-stop IBIS · launched at $2,000 in 2018Photo: HellcatSRT via Wikimedia Commons, CC0

Side-by-side specs

	Sony a6700	Sony a7 III
Sensor	26MP APS-C back-illuminated Exmor R CMOS	24.2MP full-frame back-illuminated Exmor R CMOS
Processor	BIONZ XR plus AI processing unit	BIONZ X with front-end LSI
Autofocus	AI subject recognition: human, animal, bird, insect, car/train, airplane	693 phase-detection + 425 contrast-detection points; Eye AF; EV −3 to 20
ISO	100–32000; expandable to 50–102400	100–51200; expandable to 50–204800
Stabilization	5-axis in-body, 5.0 stops (CIPA)	Same
Bursts	11 fps	Up to 10 fps (Hi+)
Shutter	Mechanical 1/4000 s; electronic 1/8000 s	Mechanical 1/8000 s
Video	4K up to 120p (1.58x crop); 4K/60 oversampled from 6K; 10-bit 4:2:2; S-Log3, S-Cinetone	4K up to 30p; Full HD up to 120p; 8-bit; S-Log2, S-Log3, HLG
Viewfinder	2.36M-dot EVF	2.36M-dot OLED EVF
Screen	3.0-inch fully articulating touchscreen, 1.04M dots	3.0-inch tilting touchscreen, 921,600 dots
Card slots	One SD (UHS-II)	Two: SD (UHS-I/II) + SD/Memory Stick (UHS-I)
Ports	Mic and headphone jacks; USB-C (10Gbps)	Mic and headphone jacks; USB-C (USB 3.1 Gen 1) and micro USB
Battery (CIPA, screen)	NP-FZ100; 570 shots	NP-FZ100; about 710 shots
Weight	About 493 g with battery and card	About 650 g with battery and card
Launch price	Jul 12, 2023; $1,399.99 body-only (US)	Feb 26, 2018; $2,000 body-only (US)

Specs from the Sony and DPReview figures cited in our a6700 review and Sony USA's ILCE-7M3 specifications as cited in our a7 III guide; viewfinder magnification left out because the sources use different bases. US launch prices from Sony. Battery figures are CIPA, rear screen. ✓ = advantage; blank = tie or not directly comparable.

Sample photos

Four photos taken with the Sony a6700 and four with the Sony a7 III, shared on Wikimedia Commons under open licenses.

Sample photo 1 of 8 taken with the Sony a6700 — Taken with the Sony a6700. Photo: Ralf Hüsges via Wikimedia Commons, CC BY 2.0 (resized)

Sample photo 2 of 8 taken with the Sony a6700 — Taken with the Sony a6700. Photo: NorbertNagel via Wikimedia Commons, CC BY-SA 4.0 (resized)

Sample photo 3 of 8 taken with the Sony a6700 — Taken with the Sony a6700. Photo: Ralf Hüsges via Wikimedia Commons, CC BY 2.0 (resized)

Sample photo 4 of 8 taken with the Sony a6700 — Taken with the Sony a6700. Photo: Ralf Hüsges via Wikimedia Commons, CC BY 2.0 (resized)

Sample photo 5 of 8 taken with the Sony a7 III — Taken with the Sony a7 III. Photo: Pierre Blaché via Wikimedia Commons, CC0 (resized)

Sample photo 6 of 8 taken with the Sony a7 III — Taken with the Sony a7 III. Photo: Rosco1011 via Wikimedia Commons, CC BY-SA 4.0 (resized)

Sample photo 7 of 8 taken with the Sony a7 III — Taken with the Sony a7 III. Photo: Bernatburriel via Wikimedia Commons, CC0 (resized)

Sample photo 8 of 8 taken with the Sony a7 III — Taken with the Sony a7 III. Photo: Neeraj Menon via Wikimedia Commons, CC BY 4.0 (resized)

Who should buy which

Buy the a6700 if…

You shoot birds, insects or vehicles: AI subject recognition from its AI processing unit.
You shoot video: 4K up to 120p, 4K/60 oversampled from 6K, 10-bit 4:2:2 and a vari-angle screen.
You want the lighter body: about 493 g vs about 650 g with battery and card.

Buy the a7 III if…

You want a full-frame sensor for shallower depth of field and wider-angle use of full-frame lenses.
You shoot events or weddings and want two card slots.
You want more shots per charge: about 710 vs 570 (CIPA, screen).

Both bodies use the NP-FZ100, a 2.36M-dot finder and 5.0-stop in-body stabilization, so the choice is mostly sensor size, two card slots and battery life versus AI autofocus, video and weight. See our full a6700 review and a7 III guide, or all comparisons.

Where to buy

Sony a6700

a6700 · body (new)

Sony a6700: Launched at $1,399.99 in 2023 (Sony's US launch price, July 12, 2023).

Check price
Read the full Sony a6700 review

Sony a7 III

a7 III · body (new)

Sony a7 III: Launched at $2,000 in 2018 (Sony's US launch price, February 26, 2018).

Check price
Read the full Sony a7 III guide

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