Fujifilm
GFX100
Original 102MP GFX flagship with integrated vertical grip, IBIS, phase-detect AF, and 4K video.
$9,999
Released May 2019
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 7 years newer.
Wins
GFX100
Wins
Alpha 7R VI
2 categories tied
TL;DR — Key differences
- BAlpha 7R VI has higher RAW buffer depth (150 frames vs 14 frames)
- BAlpha 7R VI has higher Burst (electronic) (30 fps vs 5 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 lower Weight (713 g vs 1400 g)
Key specs at a glance
Size and weight, to scale
GFX100
156 × 164 × 103 mm
1400 g (3.09 lb / 49.38 oz)
Alpha 7R VI
133 × 97 × 83 mm
713 g (1.57 lb / 25.15 oz)
GFX100 is 24mm wider, 67mm taller, and 20mm thicker than Alpha 7R VI.
GFX100 is 687 g heavier than Alpha 7R VI.
Depth (front-to-back): 103mm GFX100 · 83mm Alpha 7R VI
Back view, to scale
Width × Height — same proportions as the front of the body.
GFX100
156 × 164 mm
Alpha 7R VI
133 × 97 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
GFX100
156 × 103 mm
Alpha 7R VI
133 × 83 mm
Sensor size, to scale
GFX100
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
GFX100: 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
GFX100
Dimensions (W×H×D mm)
Adds 156.2, 163.6, 102.9
Card types
Adds SD UHS-II
Weather sealing
Only GFX100 supports it
Resolution
102 MP vs 66.8 MP — higher is better
Subject recognition
Adds Face
Battery life (CIPA)
800 shots vs 600 shots — higher is better
Reasons to choose
Alpha 7R VI
AF low-light limit
-6 EV vs -3 EV — lower is better
Dimensions (W×H×D mm)
Adds 132.7, 96.9, 82.9
Card types
Adds CFexpress Type A, SDXC UHS-II
RAW buffer depth
150 frames vs 14 frames — higher is better
Burst (electronic)
30 fps vs 5 fps — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
Subject recognition
Adds Animal, Bird, Insect…
ISO max (native)
32,000 vs 12,800 — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye 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.
GFX100
Pros
- ✓102MP medium format sensor
- ✓Built-in vertical grip
- ✓IBIS
- ✓4K video
Cons
- –Very large body
- –Expensive
- –Older AF generation
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 wildlife, GFX100 or Alpha 7R VI?
Alpha 7R VI scores 6.5/10 versus 1.5/10 for GFX100 — 30fps burst captures fleeting moments.
What's the resolution difference between the GFX100 and Alpha 7R VI?
GFX100 is 102 MP and Alpha 7R VI is 66.8 MP, so the GFX100 captures more detail for cropping and large prints.
Do the GFX100 and Alpha 7R VI have in-body image stabilization?
GFX100 has 5.5-stop in-body image stabilization, while alpha 7R VI has in-body image stabilization.
Which shoots faster bursts — the GFX100 or the Alpha 7R VI?
GFX100 reaches 5 fps electronic. Alpha 7R VI reaches 30 fps electronic.
What's the weight difference between the GFX100 and Alpha 7R VI?
GFX100 weighs 1400 g and Alpha 7R VI weighs 713 g, so the Alpha 7R VI is 687 g lighter.
Do the GFX100 and Alpha 7R VI record 4K video?
GFX100: 4K up to 30p. Alpha 7R VI: 8K (max), 4K up to 120p.
Are the GFX100 and Alpha 7R VI weather sealed?
GFX100: Yes. Alpha 7R VI: No.
Which has better battery life?
Rated battery life is 800 shots (CIPA) for the GFX100 and 600 shots for the Alpha 7R VI, giving the GFX100 the edge.
How much does each cost?
GFX100 launched at $9,999 and Alpha 7R VI at $4,499. The Alpha 7R VI is $5,500 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Fujifilm and Sony press materials.