Fujifilm
GFX100 II
102MP medium format flagship for studio, fashion, and landscape.
$7,499
Released Sep 2023
Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Released Oct 2021
GFX100 II is 1.9 years newer.
Wins
GFX100 II
Wins
Alpha 7 IV
3 categories tied
TL;DR — Key differences
- BAlpha 7 IV has higher ISO max (native) (51,200 vs 12,800)
- AGFX100 II has higher Resolution (102 MP vs 33 MP)
- AGFX100 II has higher EVF resolution (9,440,000 vs 3,686,400)
- BAlpha 7 IV has higher RAW buffer depth (828 frames vs 325 frames)
- BAlpha 7 IV has higher Burst (electronic) (10 fps vs 5.3 fps)
Key specs at a glance
Size and weight, to scale
GFX100 II
152 × 117 × 99 mm
1030 g (2.27 lb / 36.33 oz)
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
GFX100 II is 21mm wider, 21mm taller, and 19mm thicker than Alpha 7 IV.
GFX100 II is 372 g heavier than Alpha 7 IV.
Depth (front-to-back): 99mm GFX100 II · 80mm Alpha 7 IV
Sensor size, to scale
GFX100 II
43.8 × 32.9 mm · Medium Format
1441 mm² area
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
1.7× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
GFX100 II: mount data unavailable
Alpha 7 IV
✓ 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 II
AF low-light limit
-5.5 EV vs -4 EV — lower is better
Dimensions (W×H×D mm)
Adds 152.4, 117.4, 98.6
Resolution
102 MP vs 33 MP — higher is better
Card types
Adds CFexpress Type B, SSD via USB
EVF resolution
9,440,000 vs 3,686,400 — higher is better
Codecs
Adds Apple ProRes 422 HQ, Apple ProRes 422, Apple ProRes 422 LT
Subject recognition
Adds Automobile, Motorcycle/Bike, Train
IBIS effectiveness
8 stops vs 5.5 stops — higher is better
Reasons to choose
Alpha 7 IV
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
ISO max (native)
51,200 vs 12,800 — higher is better
RAW buffer depth
828 frames vs 325 frames — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
AA filter
Only Alpha 7 IV supports it
Subject recognition
Adds Human, Insect, Car/Train
Card types
Adds CFexpress Type A
Burst (electronic)
10 fps vs 5.3 fps — higher is better
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓4K max frame rate — Both 60 fps
- ✓Internal RAW video — Both support internal raw video
- ✓In-body stabilization — Both support in-body stabilization
- ✓Weather sealing — Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
GFX100 II
Pros
- ✓102MP medium format
- ✓Stunning detail
- ✓Pro video
Cons
- –Very expensive
- –Large files
- –Slow operation feel
Alpha 7 IV
Pros
- ✓33MP — more detail for cropping and print
- ✓10-bit 4K 60p (Super35 crop) / 4K 30p full-frame
- ✓Full-size HDMI port
- ✓759 phase-detect AF points
Cons
- –4K 60p requires Super35 crop
- –10fps burst lags behind R6 II at 40fps
- –Complex menu system
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, GFX100 II or Alpha 7 IV?
Alpha 7 IV scores 9.0/10 versus 6.0/10 for GFX100 II — 33MP — ample resolution for portraits.
What's the resolution difference between the GFX100 II and Alpha 7 IV?
GFX100 II is 102 MP and Alpha 7 IV is 33 MP, so the GFX100 II captures more detail for cropping and large prints.
Do the GFX100 II and Alpha 7 IV have in-body image stabilization?
GFX100 II has 8-stop in-body image stabilization, while alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the GFX100 II or the Alpha 7 IV?
GFX100 II reaches 8 fps mechanical. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the GFX100 II and Alpha 7 IV?
GFX100 II weighs 1030 g and Alpha 7 IV weighs 658 g, so the Alpha 7 IV is 372 g lighter.
Do the GFX100 II and Alpha 7 IV record 4K video?
GFX100 II: 8K (max), 4K up to 60p. Alpha 7 IV: 4K up to 60p.
Are the GFX100 II and Alpha 7 IV weather sealed?
GFX100 II: Yes. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 540 shots (CIPA) for the GFX100 II and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.
How much does each cost?
GFX100 II launched at $7,499 and Alpha 7 IV at $2,499. The Alpha 7 IV is $5,000 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Fujifilm and Sony press materials.