Sony
Alpha 1 II
50MP stacked flagship with 30fps RAW, 8K video, and Sony's fastest hybrid performance.
$6,499
Released Nov 2024
Sony
Alpha 7S III
12MP low-light video specialist with 4K 120p, 16-bit RAW HDMI, and excellent autofocus.
$3,499
Released Sep 2020
Alpha 1 II is 4.3 years newer.
Wins
Alpha 1 II
Wins
Alpha 7S III
7 categories tied
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TL;DR — Key differences
- AAlpha 1 II has higher Resolution (50.1 MP vs 12.1 MP)
- BAlpha 7S III has higher Max video bit rate (600 Mbps vs 150 Mbps)
- BAlpha 7S III has higher ISO max (native) (102,400 vs 32,000)
- AAlpha 1 II has higher Burst (electronic) (30 fps vs 10 fps)
- AAlpha 1 II has higher EVF refresh rate (240 Hz vs 120 Hz)
Key specs at a glance
Size and weight, to scale
Alpha 1 II
136 × 97 × 83 mm
743 g (1.64 lb / 26.21 oz)
Alpha 7S III
129 × 97 × 81 mm
699 g (1.54 lb / 24.66 oz)
Alpha 1 II is 7mm wider and 2mm thicker than Alpha 7S III.
Alpha 1 II is 44 g heavier than Alpha 7S III.
Depth (front-to-back): 83mm Alpha 1 II · 81mm Alpha 7S III
Sensor size, to scale
Alpha 1 II
35.9 × 24 mm · Full Frame
862 mm² area
Alpha 7S III
35.6 × 23.8 mm · Full Frame
847 mm² area
Lens ecosystem
Native lens selection
Alpha 1 II
✓ 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 1 II
Resolution
50.1 MP vs 12.1 MP — higher is better
Subject recognition
Adds Bird, Insect, Car/Train…
Burst (electronic)
30 fps vs 10 fps — higher is better
Dimensions (W×H×D mm)
Adds 136.1, 82.9
Pre-Capture / Pre-Release
Only Alpha 1 II supports it
EVF refresh rate
240 Hz vs 120 Hz — higher is better
RAW buffer depth
200 frames vs 120 frames — higher is better
IBIS effectiveness
8.5 stops vs 5.5 stops — higher is better
Reasons to choose
Alpha 7S III
AF low-light limit
-6 EV vs -4 EV — lower is better
Max video bit rate
600 Mbps vs 150 Mbps — higher is better
ISO max (native)
102,400 vs 32,000 — higher is better
Dimensions (W×H×D mm)
Adds 128.9, 80.8
ISO min (native)
80 vs 100 — lower is better
Battery life (CIPA)
600 shots vs 520 shots — higher is better
Weight
699 g vs 743 g — lower 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
- ✓Burst (mechanical) — Both 10 fps
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Alpha 1 II
Pros
- ✓50MP stacked sensor
- ✓30fps blackout-free burst
- ✓8K 30p video
- ✓Best Sony AF
Cons
- –Very expensive
- –Complex menus
- –Large files
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
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, Alpha 1 II or Alpha 7S III?
Alpha 1 II scores 9.0/10 versus 4.0/10 for Alpha 7S III — 30fps burst — pro-level action capture.
What's the resolution difference between the Alpha 1 II and Alpha 7S III?
Alpha 1 II is 50.1 MP and Alpha 7S III is 12.1 MP, so the Alpha 1 II captures more detail for cropping and large prints.
Do the Alpha 1 II and Alpha 7S III have in-body image stabilization?
Alpha 1 II has 8.5-stop in-body image stabilization, while alpha 7S III has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the Alpha 1 II or the Alpha 7S III?
Alpha 1 II reaches 30 fps electronic. Alpha 7S III reaches 10 fps electronic.
What's the weight difference between the Alpha 1 II and Alpha 7S III?
Alpha 1 II weighs 743 g and Alpha 7S III weighs 699 g, so the Alpha 7S III is 44 g lighter.
Do the Alpha 1 II and Alpha 7S III record 4K video?
Alpha 1 II: 8K (max), 4K up to 120p. Alpha 7S III: 4K up to 120p.
Are the Alpha 1 II and Alpha 7S III weather sealed?
Alpha 1 II: Yes. Alpha 7S III: Yes.
Which has better battery life?
Rated battery life is 520 shots (CIPA) for the Alpha 1 II and 600 shots for the Alpha 7S III, giving the Alpha 7S III the edge.
How much does each cost?
Alpha 1 II launched at $6,499 and Alpha 7S III at $3,499. The Alpha 7S III is $3,000 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Sony press materials.