Fujifilm
GFX100S II
Compact 102MP GFX medium format body with X-Processor 5, 8-stop IBIS, and updated subject detection.
$4,999
Released May 2024
Sony
Alpha 7R VI
66.8MP fully-stacked full-frame high-resolution body with 30fps bursts, 8K 30p, 4K 120p, and Sony's new BIONZ XR2 engine.
$4,499
Released Jun 2026
Alpha 7R VI is 2.1 years newer.
Wins
GFX100S II
Wins
Alpha 7R VI
1 categories tied
TL;DR — Key differences
- BAlpha 7R VI has higher Burst (electronic) (30 fps vs 4.1 fps)
- BAlpha 7R VI has higher 4K max frame rate (120 fps vs 30 fps)
- BAlpha 7R VI has higher ISO max (native) (32,000 vs 12,800)
- BAlpha 7R VI has higher AF points / zones (759 vs 425)
- BAlpha 7R VI has higher EVF resolution (9,437,184 vs 5,760,000)
Key specs at a glance
Size and weight, to scale
GFX100S II
150 × 104 × 87 mm
883 g (1.95 lb / 31.15 oz)
Alpha 7R VI
133 × 97 × 83 mm
713 g (1.57 lb / 25.15 oz)
GFX100S II is 17mm wider, 7mm taller, and 4mm thicker than Alpha 7R VI.
GFX100S II is 170 g heavier than Alpha 7R VI.
Depth (front-to-back): 87mm GFX100S II · 83mm Alpha 7R VI
Back view, to scale
Width × Height — same proportions as the front of the body.
GFX100S II
150 × 104 mm
Alpha 7R VI
133 × 97 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
GFX100S II
150 × 87 mm
Alpha 7R VI
133 × 83 mm
Sensor size, to scale
GFX100S II
43.8 × 32.9 mm · Medium Format
1441 mm² area
Alpha 7R VI
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 II: mount data unavailable
Alpha 7R VI
✓ 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 II
Dimensions (W×H×D mm)
Adds 150, 104.2, 87.2
Card types
Adds SD UHS-II, SDXC V90, SSD via USB
Subject recognition
Adds Automobile, Motorcycle/Bike, Airplane…
Codecs
Adds Apple ProRes 422 HQ, Apple ProRes 422, Apple ProRes 422 LT
Internal RAW video
Only GFX100S II supports it
Weather sealing
Only GFX100S II supports it
Resolution
102 MP vs 66.8 MP — higher is better
ISO min (native)
80 vs 100 — lower is better
Reasons to choose
Alpha 7R VI
Dimensions (W×H×D mm)
Adds 132.7, 96.9, 82.9
Card types
Adds CFexpress Type A, SDXC UHS-II
Burst (electronic)
30 fps vs 4.1 fps — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
Subject recognition
Adds Human, Eye, Insect…
ISO max (native)
32,000 vs 12,800 — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
AF points / zones
759 vs 425 — higher is better
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓In-body stabilization — Both support in-body stabilization
- ✓Card slots — Both 2
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
Pros & cons at a glance
Editorially curated highlights and trade-offs.
GFX100S II
Pros
- ✓102MP medium format sensor
- ✓8-stop IBIS
- ✓X-Processor 5
- ✓Compact for GFX
Cons
- –Large files
- –Premium price
- –Medium format AF not for sports
Alpha 7R VI
Pros
- ✓66.8MP fully-stacked Exmor RS sensor
- ✓30fps blackout-free electronic burst
- ✓8K 30p and 4K 120p video
- ✓8.5-stop in-body stabilization
- ✓9.44M-dot HDR OLED EVF
Cons
- –Very expensive
- –Large files demand fast cards and storage
- –8K workflow can be heavy
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, GFX100S II or Alpha 7R VI?
Alpha 7R VI scores 8.5/10 versus 6.0/10 for GFX100S II — 66.8MP — excellent for large prints and crops.
What's the resolution difference between the GFX100S II and Alpha 7R VI?
GFX100S II is 102 MP and Alpha 7R VI is 66.8 MP, so the GFX100S II captures more detail for cropping and large prints.
Do the GFX100S II and Alpha 7R VI have in-body image stabilization?
GFX100S II has 8-stop in-body image stabilization, while alpha 7R VI has in-body image stabilization.
Which shoots faster bursts — the GFX100S II or the Alpha 7R VI?
GFX100S II reaches 7 fps mechanical. Alpha 7R VI reaches 30 fps electronic.
What's the weight difference between the GFX100S II and Alpha 7R VI?
GFX100S II weighs 883 g and Alpha 7R VI weighs 713 g, so the Alpha 7R VI is 170 g lighter.
Do the GFX100S II and Alpha 7R VI record 4K video?
GFX100S II: 4K up to 30p. Alpha 7R VI: 8K (max), 4K up to 120p.
Are the GFX100S II and Alpha 7R VI weather sealed?
GFX100S II: Yes. Alpha 7R VI: No.
Which has better battery life?
Rated battery life is 530 shots (CIPA) for the GFX100S II and 600 shots for the Alpha 7R VI, giving the Alpha 7R VI the edge.
How much does each cost?
GFX100S II launched at $4,999 and Alpha 7R VI at $4,499. The Alpha 7R VI is $500 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Fujifilm and Sony press materials.