Sony
FX3
Compact full-frame cinema line camera with S-Cinetone and pro video ergonomics.
$3,899
Launch priceReleased Feb 2021
Z CAM
E2-M4
Compact MFT cinema box with 4K 120p, ZRAW, ProRes, and interchangeable MFT lenses.
$1,299
Launch priceReleased Jun 2023
E2-M4 is 2.3 years newer.
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Wins
FX3
Wins
E2-M4
2 categories tied
Which would you choose?
TL;DR — Key differences
- AFX3 has higher ISO max (native) (102,400 vs 25,600)
- AFX3 has higher Max video bit rate (600 Mbps vs 200 Mbps)
- AFX3 has higher RAW buffer depth (120 frames vs 60 frames)
- BE2-M4 has lower Weight (370 g vs 715 g)
- BE2-M4 has higher AF points / zones (1053 vs 627)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
FX3
130 × 78 × 85 mm
715 g (1.58 lb / 25.22 oz)
Credit card
85.6 × 54 mm
for scale
E2-M4
91 × 66 × 72 mm
370 g (0.82 lb / 13.05 oz)
FX3 is 39mm wider, 12mm taller, and 13mm thicker than E2-M4.
FX3 is 345 g heavier than E2-M4.
Depth (front-to-back): 85mm FX3 · 72mm E2-M4
Back view, to scale
Width × Height — same proportions as the front of the body.
FX3
130 × 78 mm
Credit card
85.6 × 54 mm
E2-M4
91 × 66 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
FX3
130 × 85 mm
Credit card
85.6 × 54 mm
E2-M4
91 × 72 mm
Sensor size, to scale
FX3
35.6 × 23.8 mm · Full Frame
847 mm² area
E2-M4
17.3 × 13 mm · Micro Four Thirds
225 mm² area
3.8× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
FX3
✓ more lensesSony E
350+
native lenses available
E2-M4
Micro Four Thirds
130+
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
FX3
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
Dimensions (W×H×D mm)
Adds 129.7, 77.8, 84.5
ISO max (native)
102,400 vs 25,600 — higher is better
Max video bit rate
600 Mbps vs 200 Mbps — higher is better
RAW buffer depth
120 frames vs 60 frames — higher is better
Card types
Adds CFexpress Type A
Burst (mechanical)
10 fps vs 6 fps — higher is better
ISO min (native)
80 vs 100 — lower is better
Reasons to choose
E2-M4
Codecs
Adds ZRAW, ProRes
Dimensions (W×H×D mm)
Adds 91, 66, 72
AF low-light limit
-6.5 EV vs -6 EV — lower is better
Subject recognition
Adds Bird, Vehicle
Pre-Capture / Pre-Release
Only E2-M4 supports it
Weight
370 g vs 715 g — lower is better
AF points / zones
1053 vs 627 — higher is better
Burst (electronic)
15 fps vs 10 fps — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓4K max frame rate — Both 120 fps
- ✓Internal RAW video — Both support internal raw video
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
Pros & cons at a glance
Editorially curated highlights and trade-offs.
FX3
Pros
- ✓Cinema form factor
- ✓S-Log3 / S-Cinetone
- ✓Compact for gimbals
- ✓Full-frame sensor
Cons
- –No EVF
- –Still photo ergonomics limited
- –Single card slot
E2-M4
Pros
- ✓Tiny MFT cinema box
- ✓4K 120p
- ✓ZRAW internal
- ✓Affordable cinema entry
Cons
- –No screen
- –MFT sensor
- –Manual focus workflow
Decided which one is right for you?
Compare live prices for the FX3 and E2-M4 at major authorized retailers.
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, FX3 or E2-M4?
E2-M4 scores 9.5/10 versus 5.5/10 for FX3 — 15fps burst — fast action ready.
What's the resolution difference between the FX3 and E2-M4?
FX3 is 12.1 MP and E2-M4 is 10.28 MP, so the FX3 captures more detail for cropping and large prints.
Do the FX3 and E2-M4 have in-body image stabilization?
FX3 has 5.5-stop in-body image stabilization, while E2-M4 has 6-stop in-body image stabilization.
Which shoots faster bursts — the FX3 or the E2-M4?
FX3 reaches 10 fps electronic. E2-M4 reaches 15 fps electronic.
What's the weight difference between the FX3 and E2-M4?
FX3 weighs 715 g and E2-M4 weighs 370 g, so the E2-M4 is 345 g lighter.
Do the FX3 and E2-M4 record 4K video?
FX3: 4K up to 120p. E2-M4: 4K up to 120p.
Are the FX3 and E2-M4 weather sealed?
FX3: Yes. E2-M4: Yes.
Which has better battery life?
Rated battery life is 580 shots (CIPA) for the FX3 and 640 shots for the E2-M4, giving the E2-M4 the edge.
How much does each cost?
FX3 launched at $3,899 and E2-M4 at $1,299. The E2-M4 is $2,600 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way FX3 vs E2-M4 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Sony and Z CAM press materials.