Fujifilm
X100S
Second-generation X100 with 16MP X-Trans sensor and fixed 35mm-equivalent lens.
$1,299
Released Jan 2013
Sony
Alpha 1 II
50MP stacked flagship with 30fps RAW, 8K video, and Sony's fastest hybrid performance.
$6,499
Released Nov 2024
Alpha 1 II is 11.8 years newer.
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Wins
X100S
Wins
Alpha 1 II
TL;DR — Key differences
- BAlpha 1 II has higher IBIS effectiveness (8.5 stops vs 0 stops)
- BAlpha 1 II has higher RAW buffer depth (200 frames vs 8 frames)
- BAlpha 1 II has higher ISO max (native) (32,000 vs 6,400)
- BAlpha 1 II has higher Burst (electronic) (30 fps vs 6 fps)
- BAlpha 1 II has higher Max video bit rate (150 Mbps vs 36 Mbps)
Key specs at a glance
Size and weight, to scale
X100S
127 × 74 × 54 mm
445 g (0.98 lb / 15.70 oz)
Alpha 1 II
136 × 97 × 83 mm
743 g (1.64 lb / 26.21 oz)
X100S is 10mm narrower, 23mm shorter, and 29mm thinner than Alpha 1 II.
X100S is 298 g lighter than Alpha 1 II.
Depth (front-to-back): 54mm X100S · 83mm Alpha 1 II
Sensor size, to scale
X100S
23.6 × 15.6 mm · APS-C
368 mm² area
Alpha 1 II
35.9 × 24 mm · Full Frame
862 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
X100S: 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
X100S
Dimensions (W×H×D mm)
Adds 126.5, 74.4, 53.9
Card types
Adds SD UHS-I
Weight
445 g vs 743 g — lower is better
AF frame coverage
100 % vs 94 % — higher is better
Reasons to choose
Alpha 1 II
IBIS effectiveness
8.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 136.1, 96.9, 82.9
Card types
Adds CFexpress Type A, SD UHS-II
RAW buffer depth
200 frames vs 8 frames — higher is better
Subject recognition
Adds Animal, Bird, Insect…
ISO max (native)
32,000 vs 6,400 — higher is better
Burst (electronic)
30 fps vs 6 fps — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Touchscreen — Both support touchscreen
Pros & cons at a glance
Editorially curated highlights and trade-offs.
X100S
Pros
- ✓Classic fixed-lens design
- ✓X-Trans sensor
- ✓Hybrid viewfinder
Cons
- –Very old AF
- –No 4K
- –Fixed screen
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 X100S and Alpha 1 II at major authorized retailers.
Fujifilm X100S
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, X100S or Alpha 1 II?
Alpha 1 II scores 9.5/10 versus 0.0/10 for X100S — 30fps burst captures fleeting moments.
What's the resolution difference between the X100S and Alpha 1 II?
X100S is 16.3 MP and Alpha 1 II is 50.1 MP, so the Alpha 1 II captures more detail for cropping and large prints.
Do the X100S and Alpha 1 II have in-body image stabilization?
X100S does not have IBIS, while alpha 1 II has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the X100S or the Alpha 1 II?
X100S reaches 6 fps electronic. Alpha 1 II reaches 30 fps electronic.
What's the weight difference between the X100S and Alpha 1 II?
X100S weighs 445 g and Alpha 1 II weighs 743 g, so the X100S is 298 g lighter.
Do the X100S and Alpha 1 II record 4K video?
X100S: Full HD. Alpha 1 II: 8K (max), 4K up to 120p.
Are the X100S and Alpha 1 II weather sealed?
X100S: No. Alpha 1 II: Yes.
Which has better battery life?
Rated battery life is 330 shots (CIPA) for the X100S and 520 shots for the Alpha 1 II, giving the Alpha 1 II the edge.
How much does each cost?
X100S launched at $1,299 and Alpha 1 II at $6,499. The X100S is $5,200 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Fujifilm and Sony press materials.