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
Fujifilm
X-A3
Stylish entry X-mount body with 24MP APS-C output and a flip-up touchscreen.
$599
Released Aug 2016
EOS R1 is 7.9 years newer.
Wins
EOS R1
Wins
X-A3
2 categories tied
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TL;DR — Key differences
- AEOS R1 has higher IBIS effectiveness (8.5 stops vs 0 stops)
- AEOS R1 has higher ISO max (native) (102,400 vs 12,800)
- AEOS R1 has higher Burst (electronic) (40 fps vs 6 fps)
- BX-A3 has lower Weight (339 g vs 1115 g)
- AEOS R1 has higher AF points / zones (1053 vs 425)
Key specs at a glance
Size and weight, to scale
EOS R1
158 × 150 × 87 mm
1115 g (2.46 lb / 39.33 oz)
X-A3
117 × 67 × 40 mm
339 g (0.75 lb / 11.96 oz)
EOS R1 is 41mm wider, 83mm taller, and 47mm thicker than X-A3.
EOS R1 is 776 g heavier than X-A3.
Depth (front-to-back): 87mm EOS R1 · 40mm X-A3
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R1
158 × 150 mm
X-A3
117 × 67 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R1
158 × 87 mm
X-A3
117 × 40 mm
Sensor size, to scale
EOS R1
36 × 24 mm · Full Frame
864 mm² area
X-A3
23.5 × 15.7 mm · APS-C
369 mm² area
2.3× 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
X-A3
✓ more lensesFujifilm X
105+
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
EOS R1
Subject recognition
Adds People, Dogs, Cats…
IBIS effectiveness
8.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 157.6, 149.5, 87.3
Card types
Adds CFexpress Type B, CFexpress Type B
ISO max (native)
102,400 vs 12,800 — higher is better
Burst (electronic)
40 fps vs 6 fps — higher is better
Codecs
Adds RAW, XF-HEVC S, XF-AVC S…
AF points / zones
1053 vs 425 — higher is better
Reasons to choose
X-A3
Subject recognition
Adds Human
Dimensions (W×H×D mm)
Adds 116.9, 66.9, 40.4
Card types
Adds SD UHS-I
Weight
339 g vs 1115 g — lower is better
Both cameras share
- ✓Resolution — Both 24.2 MP
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
- ✓Bluetooth — Both support bluetooth
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
X-A3
Pros
- ✓24MP APS-C
- ✓Flip-up screen
- ✓Affordable used
Cons
- –No EVF
- –No 4K
- –Entry controls
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS R1 or X-A3?
EOS R1 scores 9.0/10 versus 1.0/10 for X-A3 — 6K video for oversampled 4K.
What's the resolution difference between the EOS R1 and X-A3?
Both cameras share the same 24.2 MP resolution.
Do the EOS R1 and X-A3 have in-body image stabilization?
EOS R1 has 8.5-stop in-body image stabilization, while x-A3 does not have IBIS.
Which shoots faster bursts — the EOS R1 or the X-A3?
EOS R1 reaches 40 fps electronic. X-A3 reaches 6 fps electronic.
What's the weight difference between the EOS R1 and X-A3?
EOS R1 weighs 1115 g and X-A3 weighs 339 g, so the X-A3 is 776 g lighter.
Do the EOS R1 and X-A3 record 4K video?
EOS R1: 6K RAW (max), 4K up to 120p. X-A3: Full HD.
Are the EOS R1 and X-A3 weather sealed?
EOS R1: Yes. X-A3: No.
How much does each cost?
EOS R1 launched at $6,299 and X-A3 at $599. The X-A3 is $5,700 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Fujifilm press materials.