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 9 III
Global shutter sports flagship with 120fps and zero rolling shutter for pro action.
$5,999
Released Jan 2024
Alpha 1 II is 10 months newer.
Wins
Alpha 1 II
Wins
Alpha 9 III
8 categories tied
TL;DR — Key differences
- AAlpha 1 II has higher Burst (mechanical) (10 fps vs 0 fps)
- BAlpha 9 III has higher Burst (electronic) (120 fps vs 30 fps)
- BAlpha 9 III has higher Max video bit rate (600 Mbps vs 150 Mbps)
- AAlpha 1 II has lower ISO min (native) (100 vs 250)
- AAlpha 1 II has higher Resolution (50.1 MP vs 24.6 MP)
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 9 III
136 × 97 × 83 mm
703 g (1.55 lb / 24.80 oz)
Alpha 1 II and Alpha 9 III share virtually identical body dimensions.
Alpha 1 II is 40 g heavier than Alpha 9 III.
Depth (front-to-back): 83mm Alpha 1 II · 83mm Alpha 9 III
Sensor size, to scale
Alpha 1 II
35.9 × 24 mm · Full Frame
862 mm² area
Alpha 9 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 9 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
Burst (mechanical)
10 fps vs 0 fps — higher is better
ISO min (native)
100 vs 250 — lower is better
Resolution
50.1 MP vs 24.6 MP — higher is better
Battery life (CIPA)
520 shots vs 400 shots — higher is better
ISO max (native)
32,000 vs 25,600 — higher is better
IBIS effectiveness
8.5 stops vs 8 stops — higher is better
Reasons to choose
Alpha 9 III
AF low-light limit
-5 EV vs -4 EV — lower is better
Burst (electronic)
120 fps vs 30 fps — higher is better
Max video bit rate
600 Mbps vs 150 Mbps — higher is better
Weight
703 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
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
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 9 III
Pros
- ✓Global shutter 120fps
- ✓Zero rolling shutter
- ✓Pro sports AF
- ✓Pre-capture buffer
Cons
- –24.6MP only
- –Premium price
- –Battery drain at max speed
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, Alpha 1 II or Alpha 9 III?
Alpha 1 II scores 9.0/10 versus 7.0/10 for Alpha 9 III — 50.1MP — massive detail for large prints.
What's the resolution difference between the Alpha 1 II and Alpha 9 III?
Alpha 1 II is 50.1 MP and Alpha 9 III is 24.6 MP, so the Alpha 1 II captures more detail for cropping and large prints.
Do the Alpha 1 II and Alpha 9 III have in-body image stabilization?
Alpha 1 II has 8.5-stop in-body image stabilization, while alpha 9 III has 8-stop in-body image stabilization.
Which shoots faster bursts — the Alpha 1 II or the Alpha 9 III?
Alpha 1 II reaches 30 fps electronic. Alpha 9 III reaches 120 fps electronic.
What's the weight difference between the Alpha 1 II and Alpha 9 III?
Alpha 1 II weighs 743 g and Alpha 9 III weighs 703 g, so the Alpha 9 III is 40 g lighter.
Do the Alpha 1 II and Alpha 9 III record 4K video?
Alpha 1 II: 8K (max), 4K up to 120p. Alpha 9 III: 4K up to 120p.
Are the Alpha 1 II and Alpha 9 III weather sealed?
Alpha 1 II: Yes. Alpha 9 III: Yes.
Which has better battery life?
Rated battery life is 520 shots (CIPA) for the Alpha 1 II and 400 shots for the Alpha 9 III, giving the Alpha 1 II the edge.
How much does each cost?
Alpha 1 II launched at $6,499 and Alpha 9 III at $5,999. The Alpha 9 III is $500 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Sony press materials.