Canon
EOS R1
Flagship 24.2MP full-frame BSI stacked RF body with 40fps burst, Dual Pixel Intelligent AF, 6K RAW, and 9.44M-dot EVF.
$6,299
Released Jul 2024
EOS R1 is 3.5 years newer.
Wins
EOS R1
Wins
GFX100S
3 categories tied
TL;DR — Key differences
- AEOS R1 has higher Burst (electronic) (40 fps vs 2.9 fps)
- AEOS R1 has higher ISO max (native) (102,400 vs 12,800)
- BGFX100S has higher Resolution (102 MP vs 24.2 MP)
- AEOS R1 has higher 4K max frame rate (120 fps vs 30 fps)
- AEOS R1 has higher EVF resolution (9,440,000 vs 3,690,000)
Key specs at a glance
Size and weight, to scale
EOS R1
158 × 150 × 87 mm
1115 g (2.46 lb / 39.33 oz)
GFX100S
150 × 104 × 87 mm
900 g (1.98 lb / 31.75 oz)
EOS R1 is 8mm wider and 45mm taller than GFX100S.
EOS R1 is 215 g heavier than GFX100S.
Depth (front-to-back): 87mm EOS R1 · 87mm GFX100S
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R1
158 × 150 mm
GFX100S
150 × 104 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R1
158 × 87 mm
GFX100S
150 × 87 mm
Sensor size, to scale
EOS R1
36 × 24 mm · Full Frame
864 mm² area
GFX100S
43.8 × 32.9 mm · Medium Format
1441 mm² area
1.7× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS R1
✓ more lensesCanon RF
105+
native lenses available
GFX100S: mount data unavailable
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
EOS R1
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 157.6, 149.5, 87.3
Card types
Adds CFexpress Type B, CFexpress Type B
Burst (electronic)
40 fps vs 2.9 fps — higher is better
ISO max (native)
102,400 vs 12,800 — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
EVF resolution
9,440,000 vs 3,690,000 — higher is better
Codecs
Adds RAW, XF-HEVC S, XF-AVC S
Reasons to choose
GFX100S
Dimensions (W×H×D mm)
Adds 150, 104.2, 87.2
Card types
Adds SD UHS-II, SDXC V90
Resolution
102 MP vs 24.2 MP — higher is better
Weight
900 g vs 1115 g — lower is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓In-body stabilization — Both support in-body stabilization
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 2
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R1
Pros
- ✓40fps electronic burst
- ✓24.2MP BSI stacked full-frame sensor
- ✓Dual Pixel Intelligent AF
- ✓6K RAW and 4K 120p video
- ✓Dual CFexpress Type B slots
Cons
- –24MP resolution
- –Very expensive
- –Large integrated-grip body
GFX100S
Pros
- ✓102MP
- ✓IBIS
- ✓Medium format quality
Cons
- –Price
- –Slow AF
- –Huge files
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R1 or GFX100S?
EOS R1 scores 8.5/10 versus 3.0/10 for GFX100S — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R1 and GFX100S?
EOS R1 is 24.2 MP and GFX100S is 102 MP, so the GFX100S captures more detail for cropping and large prints.
Do the EOS R1 and GFX100S have in-body image stabilization?
EOS R1 has 8.5-stop in-body image stabilization, while gFX100S has 6-stop in-body image stabilization.
Which shoots faster bursts — the EOS R1 or the GFX100S?
EOS R1 reaches 40 fps electronic. GFX100S reaches 5 fps mechanical.
What's the weight difference between the EOS R1 and GFX100S?
EOS R1 weighs 1115 g and GFX100S weighs 900 g, so the GFX100S is 215 g lighter.
Do the EOS R1 and GFX100S record 4K video?
EOS R1: 6K RAW (max), 4K up to 120p. GFX100S: 4K up to 30p.
Are the EOS R1 and GFX100S weather sealed?
EOS R1: Yes. GFX100S: Yes.
How much does each cost?
EOS R1 launched at $6,299 and GFX100S at $5,999. The GFX100S is $300 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Fujifilm press materials.