Fujifilm
GFX100S
102MP medium format in a more compact GFX body.
$5,999
Launch priceReleased Jan 2021
Sony
Alpha 1 II
50MP stacked flagship with 30fps RAW, 8K video, and Sony's fastest hybrid performance.
$6,499
Launch priceReleased Nov 2024
Alpha 1 II is 3.8 years newer.
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Wins
GFX100S
Wins
Alpha 1 II
2 categories tied
Which would you choose?
TL;DR — Key differences
- BAlpha 1 II has higher Burst (electronic) (30 fps vs 2.9 fps)
- BAlpha 1 II has higher RAW buffer depth (200 frames vs 23 frames)
- BAlpha 1 II has higher 4K max frame rate (120 fps vs 30 fps)
- AGFX100S has higher Max video bit rate (400 Mbps vs 150 Mbps)
- BAlpha 1 II has higher EVF resolution (9,437,184 vs 3,690,000)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareGFX100S
150 × 104 × 87 mm
900 g (1.98 lb / 31.75 oz)
Credit card
85.6 × 54 mm
for scale
Alpha 1 II
136 × 97 × 83 mm
743 g (1.64 lb / 26.21 oz)
GFX100S is 14mm wider, 7mm taller, and 4mm thicker than Alpha 1 II.
GFX100S is 157 g heavier than Alpha 1 II.
Depth (front-to-back): 87mm GFX100S · 83mm Alpha 1 II
Sensor size, to scale
GFX100S
43.8 × 32.9 mm · Medium Format
1441 mm² area
Alpha 1 II
35.9 × 24 mm · Full Frame
862 mm² area
1.7× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
GFX100S: mount data unavailable
Alpha 1 II
✓ 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
GFX100S
Dimensions (W×H×D mm)
Adds 150, 104.2, 87.2
Max video bit rate
400 Mbps vs 150 Mbps — higher is better
Resolution
102 MP vs 50.1 MP — higher is better
Card types
Adds SDXC V90
AF frame coverage
100 % vs 94 % — higher is better
Reasons to choose
Alpha 1 II
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 136.1, 96.9, 82.9
Burst (electronic)
30 fps vs 2.9 fps — higher is better
RAW buffer depth
200 frames vs 23 frames — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
EVF resolution
9,437,184 vs 3,690,000 — higher is better
ISO max (native)
32,000 vs 12,800 — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 2
- ✓Touchscreen — Both support touchscreen
Pros & cons at a glance
Editorially curated highlights and trade-offs.
GFX100S
Pros
- ✓102MP
- ✓IBIS
- ✓Medium format quality
Cons
- –Price
- –Slow AF
- –Huge files
Alpha 1 II
Pros
- ✓50MP stacked sensor
- ✓30fps blackout-free burst
- ✓8K 30p video
- ✓Best Sony AF
Cons
- –Very expensive
- –Complex menus
- –Large files
Decided which one is right for you?
Compare live prices for the GFX100S and Alpha 1 II at major authorized retailers.
Fujifilm GFX100S
Sony Alpha 1 II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, GFX100S or Alpha 1 II?
Alpha 1 II scores 9.5/10 versus 1.5/10 for GFX100S — 30fps burst captures fleeting moments.
What's the resolution difference between the GFX100S and Alpha 1 II?
GFX100S is 102 MP and Alpha 1 II is 50.1 MP, so the GFX100S captures more detail for cropping and large prints.
Do the GFX100S and Alpha 1 II have in-body image stabilization?
GFX100S has 6-stop in-body image stabilization, while Alpha 1 II has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the GFX100S or the Alpha 1 II?
GFX100S reaches 5 fps mechanical. Alpha 1 II reaches 30 fps electronic.
What's the weight difference between the GFX100S and Alpha 1 II?
GFX100S weighs 900 g and Alpha 1 II weighs 743 g, so the Alpha 1 II is 157 g lighter.
Do the GFX100S and Alpha 1 II record 4K video?
GFX100S: 4K up to 30p. Alpha 1 II: 8K (max), 4K up to 120p.
Are the GFX100S and Alpha 1 II weather sealed?
GFX100S: Yes. Alpha 1 II: Yes.
Which has better battery life?
Rated battery life is 460 shots (CIPA) for the GFX100S and 520 shots for the Alpha 1 II, giving the Alpha 1 II the edge.
How much does each cost?
GFX100S launched at $5,999 and Alpha 1 II at $6,499. The GFX100S is $500 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way GFX100S vs Alpha 1 II vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Fujifilm and Sony press materials.