Sony
Alpha 6700
26MP APS-C flagship with AI subject tracking, 4K 120p, and 5-stop IBIS.
$1,399
Launch priceReleased Jul 2023
Sony
Alpha 7S III
12MP low-light video specialist with 4K 120p, 16-bit RAW HDMI, and excellent autofocus.
$3,499
Launch priceReleased Sep 2020
Alpha 6700 is 2.8 years newer.
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Wins
Alpha 6700
Wins
Alpha 7S III
2 categories tied
Which would you choose?
TL;DR — Key differences
- BAlpha 7S III has higher EVF resolution (9,437,184 vs 2,359,296)
- BAlpha 7S III has higher ISO max (native) (102,400 vs 32,000)
- AAlpha 6700 has higher Resolution (26 MP vs 12.1 MP)
- BAlpha 7S III has higher Max video bit rate (600 Mbps vs 280 Mbps)
- BAlpha 7S III has higher RAW buffer depth (120 frames vs 59 frames)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
Alpha 6700
122 × 69 × 75 mm
493 g (1.09 lb / 17.39 oz)
Credit card
85.6 × 54 mm
for scale
Alpha 7S III
129 × 97 × 81 mm
699 g (1.54 lb / 24.66 oz)
Alpha 6700 is 7mm narrower, 28mm shorter, and 6mm thinner than Alpha 7S III.
Alpha 6700 is 206 g lighter than Alpha 7S III.
Depth (front-to-back): 75mm Alpha 6700 · 81mm Alpha 7S III
Back view, to scale
Width × Height — same proportions as the front of the body.
Alpha 6700
122 × 69 mm
Credit card
85.6 × 54 mm
Alpha 7S III
129 × 97 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Alpha 6700
122 × 75 mm
Credit card
85.6 × 54 mm
Alpha 7S III
129 × 81 mm
Sensor size, to scale
Alpha 6700
23.3 × 15.5 mm · APS-C
361 mm² area
Alpha 7S III
35.6 × 23.8 mm · Full Frame
847 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Alpha 6700
✓ more lensesSony E
350+
native lenses available
Alpha 7S III
✓ more lensesSony E
350+
native lenses available
Counts include current first-party and major third-party native autofocus lenses.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose
Alpha 6700
Dimensions (W×H×D mm)
Adds 122, 69, 75.1
Card types
Adds SD, SDHC, SDXC
Subject recognition
Adds Bird, Insect, Car/Train…
Resolution
26 MP vs 12.1 MP — higher is better
Weight
493 g vs 699 g — lower is better
EVF magnification
1.07 × vs 0.9 × — higher is better
Burst (mechanical)
11 fps vs 10 fps — higher is better
Burst (electronic)
11 fps vs 10 fps — higher is better
Reasons to choose
Alpha 7S III
AF low-light limit
-6 EV vs -3 EV — lower is better
Dimensions (W×H×D mm)
Adds 128.9, 96.9, 80.8
Card types
Adds CFexpress Type A, SD UHS-II
EVF resolution
9,437,184 vs 2,359,296 — higher is better
ISO max (native)
102,400 vs 32,000 — higher is better
Max video bit rate
600 Mbps vs 280 Mbps — higher is better
RAW buffer depth
120 frames vs 59 frames — higher is better
AA filter
Only Alpha 7S III supports it
Both cameras share
- ✓AF points / zones — Both 759
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓4K max frame rate — Both 120 fps
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
- ✓Weather sealing — Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Alpha 6700
Pros
- ✓AI-based subject recognition from A7R V
- ✓4K 120p Super35 — outstanding slow-motion
- ✓5-stop IBIS in a compact APS-C body
- ✓10-bit 4:2:2 internal recording
Cons
- –Single card slot
- –APS-C sensor — narrower DR vs. full-frame
- –LCD resolution 1.03M dots — below competitors
- –No headphone jack
Alpha 7S III
Pros
- ✓Best-in-class low light
- ✓4K 120p
- ✓Full-size HDMI
- ✓Strong IBIS
Cons
- –12MP stills limit
- –Older generation now
- –No 8K
Decided which one is right for you?
Compare live prices for the Alpha 6700 and Alpha 7S III at major authorized retailers.
Sony Alpha 6700
Sony Alpha 7S III
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, Alpha 6700 or Alpha 7S III?
Alpha 7S III scores 8.0/10 versus 5.0/10 for Alpha 6700 — 4K recording.
What's the resolution difference between the Alpha 6700 and Alpha 7S III?
Alpha 6700 is 26 MP and Alpha 7S III is 12.1 MP, so the Alpha 6700 captures more detail for cropping and large prints.
Do the Alpha 6700 and Alpha 7S III have in-body image stabilization?
Alpha 6700 has 5-stop in-body image stabilization, while Alpha 7S III has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the Alpha 6700 or the Alpha 7S III?
Alpha 6700 reaches 11 fps electronic. Alpha 7S III reaches 10 fps electronic.
What's the weight difference between the Alpha 6700 and Alpha 7S III?
Alpha 6700 weighs 493 g and Alpha 7S III weighs 699 g, so the Alpha 6700 is 206 g lighter.
Do the Alpha 6700 and Alpha 7S III record 4K video?
Alpha 6700: 4K up to 120p. Alpha 7S III: 4K up to 120p.
Are the Alpha 6700 and Alpha 7S III weather sealed?
Alpha 6700: Yes. Alpha 7S III: Yes.
Which has better battery life?
Rated battery life is 550 shots (CIPA) for the Alpha 6700 and 600 shots for the Alpha 7S III, giving the Alpha 7S III the edge.
How much does each cost?
Alpha 6700 launched at $1,399 and Alpha 7S III at $3,499. The Alpha 6700 is $2,100 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Alpha 6700 vs Alpha 7S III vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Sony press materials.