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
Sony
Alpha 6400
Popular APS-C body with fast AF and 11fps burst for enthusiasts.
$899
Released Feb 2019
EOS R1 is 5.4 years newer.
Wins
EOS R1
Wins
Alpha 6400
2 categories tied
TL;DR — Key differences
- AEOS R1 has higher IBIS effectiveness (8.5 stops vs 0 stops)
- AEOS R1 has higher EVF resolution (9,440,000 vs 2,359,296)
- AEOS R1 has higher 4K max frame rate (120 fps vs 30 fps)
- AEOS R1 has higher Burst (electronic) (40 fps vs 11 fps)
- AEOS R1 has higher ISO max (native) (102,400 vs 32,000)
Key specs at a glance
Size and weight, to scale
EOS R1
158 × 150 × 87 mm
1115 g (2.46 lb / 39.33 oz)
Alpha 6400
120 × 67 × 60 mm
403 g (0.89 lb / 14.22 oz)
EOS R1 is 38mm wider, 83mm taller, and 28mm thicker than Alpha 6400.
EOS R1 is 712 g heavier than Alpha 6400.
Depth (front-to-back): 87mm EOS R1 · 60mm Alpha 6400
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R1
158 × 150 mm
Alpha 6400
120 × 67 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R1
158 × 87 mm
Alpha 6400
120 × 60 mm
Sensor size, to scale
EOS R1
36 × 24 mm · Full Frame
864 mm² area
Alpha 6400
23.5 × 15.6 mm · APS-C
367 mm² area
2.4× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS R1
Canon RF
105+
native lenses available
Alpha 6400
✓ 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
EOS R1
AF low-light limit
-7.5 EV vs -2 EV — lower is better
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
Codecs
Adds RAW, XF-HEVC S, XF-AVC S…
EVF resolution
9,440,000 vs 2,359,296 — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
Reasons to choose
Alpha 6400
Subject recognition
Adds Human, Animal
Dimensions (W×H×D mm)
Adds 120, 66.9, 59.7
Card types
Adds SD UHS-I
Codecs
Adds XAVC S, AVCHD
Weight
403 g vs 1115 g — lower is better
Both cameras share
- ✓Resolution — Both 24.2 MP
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Weather sealing — Both support weather sealing
- ✓Touchscreen — Both support touchscreen
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
Alpha 6400
Pros
- ✓Fast AF
- ✓Compact
- ✓Great value
Cons
- –No IBIS
- –Older design
- –No headphone jack
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS R1 or Alpha 6400?
EOS R1 scores 9.0/10 versus 4.0/10 for Alpha 6400 — 6K video for oversampled 4K.
What's the resolution difference between the EOS R1 and Alpha 6400?
Both cameras share the same 24.2 MP resolution.
Do the EOS R1 and Alpha 6400 have in-body image stabilization?
EOS R1 has 8.5-stop in-body image stabilization, while alpha 6400 does not have IBIS.
Which shoots faster bursts — the EOS R1 or the Alpha 6400?
EOS R1 reaches 40 fps electronic. Alpha 6400 reaches 11 fps electronic.
What's the weight difference between the EOS R1 and Alpha 6400?
EOS R1 weighs 1115 g and Alpha 6400 weighs 403 g, so the Alpha 6400 is 712 g lighter.
Do the EOS R1 and Alpha 6400 record 4K video?
EOS R1: 6K RAW (max), 4K up to 120p. Alpha 6400: 4K up to 30p.
Are the EOS R1 and Alpha 6400 weather sealed?
EOS R1: Yes. Alpha 6400: Yes.
How much does each cost?
EOS R1 launched at $6,299 and Alpha 6400 at $899. The Alpha 6400 is $5,400 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sony press materials.