Sony
Alpha 6400
Popular APS-C body with fast AF and 11fps burst for enthusiasts.
$899
Launch priceReleased Feb 2019
Sony
FX5
2026 Cinema Line full-frame camera with 16.6MP stacked Exmor RS, 5K Open Gate, internal 16-bit X-OCN RAW, triple base ISO, and FX3-class compact mobility.
$4,899
Launch priceReleased Aug 2026
FX5 is 7.5 years newer.
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Wins
Alpha 6400
Wins
FX5
2 categories tied
Which would you choose?
TL;DR — Key differences
- AAlpha 6400 has higher Burst (mechanical) (11 fps vs 0 fps)
- AAlpha 6400 has higher Burst (electronic) (11 fps vs 0 fps)
- BFX5 has higher IBIS effectiveness (5.5 stops vs 0 stops)
- AAlpha 6400 has lower ISO min (native) (100 vs 800)
- BFX5 has higher 4K max frame rate (120 fps vs 29.97 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
Alpha 6400
120 × 67 × 60 mm
403 g (0.89 lb / 14.22 oz)
Credit card
85.6 × 54 mm
for scale
FX5
132 × 79 × 87 mm
734 g (1.62 lb / 25.89 oz)
Alpha 6400 is 12mm narrower, 12mm shorter, and 27mm thinner than FX5.
Alpha 6400 is 331 g lighter than FX5.
Depth (front-to-back): 60mm Alpha 6400 · 87mm FX5
Back view, to scale
Width × Height — same proportions as the front of the body.
Alpha 6400
120 × 67 mm
Credit card
85.6 × 54 mm
FX5
132 × 79 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Alpha 6400
120 × 60 mm
Credit card
85.6 × 54 mm
FX5
132 × 87 mm
Sensor size, to scale
Alpha 6400
23.5 × 15.6 mm · APS-C
367 mm² area
FX5
35.7 × 23.8 mm · Full Frame
850 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Alpha 6400
✓ more lensesSony E
350+
native lenses available
FX5
✓ 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
Alpha 6400
Burst (mechanical)
11 fps vs 0 fps — higher is better
Burst (electronic)
11 fps vs 0 fps — higher is better
Dimensions (W×H×D mm)
Adds 120, 66.9, 59.7
Card types
Adds SD, SDHC, SDXC…
ISO min (native)
100 vs 800 — lower is better
ISO max (native)
32,000 vs 12,800 — higher is better
Codecs
Adds AVCHD
Weight
403 g vs 734 g — lower is better
Reasons to choose
FX5
AF low-light limit
-6 EV vs -2 EV — lower is better
IBIS effectiveness
5.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 132.3, 79, 86.95
Card types
Adds CFexpress Type A, SD UHS-II
Codecs
Adds X-OCN LT, X-OCN C1, X-OCN C2…
4K max frame rate
120 fps vs 29.97 fps — higher is better
EVF resolution
7,070,000 vs 2,359,296 — higher is better
RAW buffer depth
120 frames vs 46 frames — higher is better
Both cameras share
- ✓AF frame coverage — Both 94 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Weather sealing — Both support weather sealing
- ✓EVF refresh rate — Both 120 Hz
- ✓Touchscreen — Both support touchscreen
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Alpha 6400
Pros
- ✓Fast AF
- ✓Compact
- ✓Great value
Cons
- –No IBIS
- –Older design
- –No headphone jack
FX5
Pros
- ✓5K Open Gate + internal X-OCN RAW (LT / C1 / C2)
- ✓Triple base ISO 800 / 4000 / 12800 + Dual Gain
- ✓15+ stops DR (S-Log3) + BIONZ XR2 AI AF
- ✓5K 60p / 4K 120p / FHD 240p at launch
- ✓Compact body with IBIS, cooling, dual card slots
Cons
- –Body-only $4,899 — XLR handle / OLED EVF optional
- –Open Gate X-OCN only at launch (XAVC Open Gate via FW)
- –4K 240p / 5K 120p planned for 2027 firmware
- –No built-in EVF (optional DVF-EL1)
Decided which one is right for you?
Compare live prices for the Alpha 6400 and FX5 at major authorized retailers.
Sony Alpha 6400
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, Alpha 6400 or FX5?
FX5 scores 8.0/10 versus 2.0/10 for Alpha 6400 — 4K recording.
What's the resolution difference between the Alpha 6400 and FX5?
Alpha 6400 is 24.2 MP and FX5 is 16.6 MP, so the Alpha 6400 captures more detail for cropping and large prints.
Do the Alpha 6400 and FX5 have in-body image stabilization?
Alpha 6400 does not have IBIS, while FX5 has 5.5-stop in-body image stabilization.
What's the weight difference between the Alpha 6400 and FX5?
Alpha 6400 weighs 403 g and FX5 weighs 734 g, so the Alpha 6400 is 331 g lighter.
Do the Alpha 6400 and FX5 record 4K video?
Alpha 6400: 4K up to 29.97p. FX5: 4K up to 120p.
Are the Alpha 6400 and FX5 weather sealed?
Alpha 6400: Yes. FX5: Yes.
How much does each cost?
Alpha 6400 launched at $899 and FX5 at $4,899. The Alpha 6400 is $4,000 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Alpha 6400 vs FX5 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Sony press materials.