OM System
OM-1 II
Flagship MFT with stacked sensor, 120fps, and pro wildlife features.
$2,399
Launch priceReleased Feb 2024
Z CAM
E2-M4
Compact MFT cinema box with 4K 120p, ZRAW, ProRes, and interchangeable MFT lenses.
$1,299
Launch priceReleased Jun 2023
OM-1 II is 8 months newer.
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Wins
OM-1 II
Wins
E2-M4
4 categories tied
Which would you choose?
TL;DR — Key differences
- AOM-1 II has higher Burst (electronic) (120 fps vs 15 fps)
- AOM-1 II has higher ISO max (native) (102,400 vs 25,600)
- AOM-1 II has higher EVF resolution (5,760,000 vs 2,360,000)
- BE2-M4 has higher 4K max frame rate (120 fps vs 60 fps)
- BE2-M4 has higher Card slots (2 vs 1)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareOM-1 II
135 × 92 × 73 mm
599 g (1.32 lb / 21.13 oz)
Credit card
85.6 × 54 mm
for scale
E2-M4
91 × 66 × 72 mm
370 g (0.82 lb / 13.05 oz)
OM-1 II is 44mm wider, 26mm taller, and 1mm thicker than E2-M4.
OM-1 II is 229 g heavier than E2-M4.
Depth (front-to-back): 73mm OM-1 II · 72mm E2-M4
Sensor size, to scale
OM-1 II
17.4 × 13 mm · Compact / large-type
226 mm² area
E2-M4
17.3 × 13 mm · Micro Four Thirds
225 mm² area
Lens ecosystem
Native lens selection
OM-1 II
✓ more lensesMicro Four Thirds
130+
native lenses available
E2-M4
✓ more lensesMicro 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
OM-1 II
AF low-light limit
-8 EV vs -6.5 EV — lower is better
Subject recognition
Adds People, Birds, Animals…
Codecs
Adds H.264, H.265, MOV
Dimensions (W×H×D mm)
Adds 134.8, 91.6, 72.7
Burst (electronic)
120 fps vs 15 fps — higher is better
ISO max (native)
102,400 vs 25,600 — higher is better
EVF resolution
5,760,000 vs 2,360,000 — higher is better
Card types
Adds SD UHS-I
Reasons to choose
E2-M4
Subject recognition
Adds Human, Animal, Bird…
Codecs
Adds ZRAW, ProRes
Dimensions (W×H×D mm)
Adds 91, 66, 72
AA filter
Only E2-M4 supports it
4K max frame rate
120 fps vs 60 fps — higher is better
Internal RAW video
Only E2-M4 supports it
Card slots
2 vs 1 — higher is better
Headphone jack (3.5mm)
Only E2-M4 supports it
Both cameras share
- ✓AF points / zones — Both 1053
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
Pros & cons at a glance
Editorially curated highlights and trade-offs.
OM-1 II
Pros
- ✓120fps stills
- ✓Stacked MFT
- ✓IP53 weather sealing
- ✓Computational features
Cons
- –MFT sensor size
- –Smaller ecosystem
- –Menu complexity
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 OM-1 II and E2-M4 at major authorized retailers.
OM System OM-1 II
Z CAM E2-M4
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, OM-1 II or E2-M4?
E2-M4 scores 8.0/10 versus 5.5/10 for OM-1 II — 4K recording.
What's the resolution difference between the OM-1 II and E2-M4?
OM-1 II is 20.4 MP and E2-M4 is 10.28 MP, so the OM-1 II captures more detail for cropping and large prints.
Do the OM-1 II and E2-M4 have in-body image stabilization?
OM-1 II has 8.5-stop in-body image stabilization, while E2-M4 has 6-stop in-body image stabilization.
Which shoots faster bursts — the OM-1 II or the E2-M4?
OM-1 II reaches 120 fps electronic. E2-M4 reaches 15 fps electronic.
What's the weight difference between the OM-1 II and E2-M4?
OM-1 II weighs 599 g and E2-M4 weighs 370 g, so the E2-M4 is 229 g lighter.
Do the OM-1 II and E2-M4 record 4K video?
OM-1 II: 4K up to 60p. E2-M4: 4K up to 120p.
Are the OM-1 II and E2-M4 weather sealed?
OM-1 II: Yes. E2-M4: Yes.
Which has better battery life?
Rated battery life is 520 shots (CIPA) for the OM-1 II and 640 shots for the E2-M4, giving the E2-M4 the edge.
How much does each cost?
OM-1 II launched at $2,399 and E2-M4 at $1,299. The E2-M4 is $1,100 less.
Can't decide between two? Compare a third camera.
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Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.