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
Sony
NEX-7
Historic 24MP APS-C NEX flagship with tri-dial controls and built-in EVF.
$1,349
Launch priceReleased Oct 2011
Alpha 7S III is 8.8 years newer.
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Wins
Alpha 7S III
Wins
NEX-7
4 categories tied
Which would you choose?
TL;DR — Key differences
- AAlpha 7S III has higher ISO max (native) (102,400 vs 25,600)
- AAlpha 7S III has higher Max video bit rate (600 Mbps vs 150 Mbps)
- AAlpha 7S III has higher EVF resolution (9,437,184 vs 2,360,000)
- BNEX-7 has higher Resolution (24.3 MP vs 12.1 MP)
- AAlpha 7S III has higher RAW buffer depth (120 frames vs 60 frames)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareAlpha 7S III
129 × 97 × 81 mm
699 g (1.54 lb / 24.66 oz)
Credit card
85.6 × 54 mm
for scale
NEX-7
120 × 67 × 43 mm
400 g (0.88 lb / 14.11 oz)
Alpha 7S III is 9mm wider, 30mm taller, and 38mm thicker than NEX-7.
Alpha 7S III is 299 g heavier than NEX-7.
Depth (front-to-back): 81mm Alpha 7S III · 43mm NEX-7
Sensor size, to scale
Alpha 7S III
35.6 × 23.8 mm · Full Frame
847 mm² area
NEX-7
23.5 × 15.6 mm · APS-C
367 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Alpha 7S III
✓ more lensesSony E
350+
native lenses available
NEX-7
✓ 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 7S III
AF low-light limit
-6 EV vs -4 EV — lower is better
Dimensions (W×H×D mm)
Adds 128.9, 96.9, 80.8
ISO max (native)
102,400 vs 25,600 — higher is better
Max video bit rate
600 Mbps vs 150 Mbps — higher is better
EVF resolution
9,437,184 vs 2,360,000 — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
RAW buffer depth
120 frames vs 60 frames — higher is better
4K max frame rate
120 fps vs 60 fps — higher is better
Reasons to choose
NEX-7
Dimensions (W×H×D mm)
Adds 119.9, 66.9, 42.6
Resolution
24.3 MP vs 12.1 MP — higher is better
Subject recognition
Adds Bird, Vehicle
Pre-Capture / Pre-Release
Only NEX-7 supports it
Weight
400 g vs 699 g — lower is better
Burst (electronic)
15 fps vs 10 fps — higher is better
IBIS effectiveness
6 stops vs 5.5 stops — higher is better
Battery life (CIPA)
640 shots vs 600 shots — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓AF points / zones — Both 759
- ✓AF frame coverage — Both 94 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
Pros & cons at a glance
Editorially curated highlights and trade-offs.
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
NEX-7
Pros
- ✓Historic NEX flagship
- ✓Tri-dial controls
- ✓Built-in EVF
- ✓24MP for era
Cons
- –Very old AF
- –No 4K
- –Superseded long ago
Decided which one is right for you?
Compare live prices for the Alpha 7S III and NEX-7 at major authorized retailers.
Sony Alpha 7S III
Sony NEX-7
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, Alpha 7S III or NEX-7?
Alpha 7S III scores 8.0/10 versus 6.0/10 for NEX-7 — 4K recording.
What's the resolution difference between the Alpha 7S III and NEX-7?
Alpha 7S III is 12.1 MP and NEX-7 is 24.3 MP, so the NEX-7 captures more detail for cropping and large prints.
Do the Alpha 7S III and NEX-7 have in-body image stabilization?
Alpha 7S III has 5.5-stop in-body image stabilization, while NEX-7 has 6-stop in-body image stabilization.
Which shoots faster bursts — the Alpha 7S III or the NEX-7?
Alpha 7S III reaches 10 fps electronic. NEX-7 reaches 15 fps electronic.
What's the weight difference between the Alpha 7S III and NEX-7?
Alpha 7S III weighs 699 g and NEX-7 weighs 400 g, so the NEX-7 is 299 g lighter.
Do the Alpha 7S III and NEX-7 record 4K video?
Alpha 7S III: 4K up to 120p. NEX-7: 4K up to 60p.
Are the Alpha 7S III and NEX-7 weather sealed?
Alpha 7S III: Yes. NEX-7: No.
Which has better battery life?
Rated battery life is 600 shots (CIPA) for the Alpha 7S III and 640 shots for the NEX-7, giving the NEX-7 the edge.
How much does each cost?
Alpha 7S III launched at $3,499 and NEX-7 at $1,349. The NEX-7 is $2,150 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Alpha 7S III vs NEX-7 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.