Canon
EOS R6 V
Video-first 32.5MP full-frame EOS V-series body with 7K RAW 60p, 4K 120p, active cooling, and Canon RF mount.
$2,499
Released May 2026
Sony
Alpha 6400
Popular APS-C body with fast AF and 11fps burst for enthusiasts.
$899
Released Feb 2019
EOS R6 V is 7.3 years newer.
Wins
EOS R6 V
Wins
Alpha 6400
1 categories tied
TL;DR — Key differences
- AEOS R6 V has higher IBIS effectiveness (7.5 stops vs 0 stops)
- AEOS R6 V has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R6 V has higher AF points / zones (6097 vs 425)
- AEOS R6 V has higher 4K max frame rate (120 fps vs 30 fps)
- AEOS R6 V has higher Burst (electronic) (40 fps vs 11 fps)
Key specs at a glance
Size and weight, to scale
EOS R6 V
142 × 83 × 80 mm
688 g (1.52 lb / 24.27 oz)
Alpha 6400
120 × 67 × 60 mm
403 g (0.89 lb / 14.22 oz)
EOS R6 V is 22mm wider, 16mm taller, and 20mm thicker than Alpha 6400.
EOS R6 V is 285 g heavier than Alpha 6400.
Depth (front-to-back): 80mm EOS R6 V · 60mm Alpha 6400
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 V
142 × 83 mm
Alpha 6400
120 × 67 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R6 V
142 × 80 mm
Alpha 6400
120 × 60 mm
Sensor size, to scale
EOS R6 V
35.9 × 23.9 mm · Full Frame
858 mm² area
Alpha 6400
23.5 × 15.6 mm · APS-C
367 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS R6 V
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 R6 V
AF low-light limit
-6.5 EV vs -2 EV — lower is better
IBIS effectiveness
7.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 141.8, 83.3, 79.7
Card types
Adds CFexpress Type B, SD UHS-II
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
AF points / zones
6097 vs 425 — higher is better
Codecs
Adds RAW, XF-HEVC S, XF-AVC S…
4K max frame rate
120 fps vs 30 fps — higher is better
Reasons to choose
Alpha 6400
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 688 g — lower is better
Both cameras share
- ✓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
- ✓Wi-Fi — Both support wi-fi
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R6 V
Pros
- ✓7K RAW 60p and 7K Open Gate recording
- ✓4K DCI/UHD 120p with no crop
- ✓Dual Pixel CMOS AF II with people, animal, and vehicle detection
- ✓Active cooling for long-form recording
- ✓Full-size HDMI and dual CFexpress/SD card recording
Cons
- –No built-in EVF
- –Single CFexpress Type B slot plus one SD slot
- –Video-first body may be less ideal for stills-first shooters
- –Battery grip not supported
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 sports, EOS R6 V or Alpha 6400?
EOS R6 V scores 8.5/10 versus 4.0/10 for Alpha 6400 — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 V and Alpha 6400?
EOS R6 V is 32.5 MP and Alpha 6400 is 24.2 MP, so the EOS R6 V captures more detail for cropping and large prints.
Do the EOS R6 V and Alpha 6400 have in-body image stabilization?
EOS R6 V has 7.5-stop in-body image stabilization, while alpha 6400 does not have IBIS.
Which shoots faster bursts — the EOS R6 V or the Alpha 6400?
EOS R6 V reaches 40 fps electronic. Alpha 6400 reaches 11 fps electronic.
What's the weight difference between the EOS R6 V and Alpha 6400?
EOS R6 V weighs 688 g and Alpha 6400 weighs 403 g, so the Alpha 6400 is 285 g lighter.
Do the EOS R6 V and Alpha 6400 record 4K video?
EOS R6 V: 4K up to 120p. Alpha 6400: 4K up to 30p.
Are the EOS R6 V and Alpha 6400 weather sealed?
EOS R6 V: Yes. Alpha 6400: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 V and 410 shots for the Alpha 6400, giving the EOS R6 V the edge.
How much does each cost?
EOS R6 V launched at $2,499 and Alpha 6400 at $899. The Alpha 6400 is $1,600 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sony press materials.