Fujifilm
X-T4
Previous-gen APS-C flagship still popular for video and stills.
$1,699
Launch priceReleased Feb 2020
OM System
OM-3
Retro-styled MFT body with modern AF and creator-friendly design.
$1,699
Launch priceReleased Jan 2025
OM-3 is 4.9 years newer.
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Wins
X-T4
Wins
OM-3
3 categories tied
Which would you choose?
TL;DR — Key differences
- BOM-3 has higher Burst (electronic) (120 fps vs 30 fps)
- BOM-3 has higher AF points / zones (1053 vs 425)
- BOM-3 has higher ISO max (native) (25,600 vs 12,800)
- AX-T4 has higher Card slots (2 vs 1)
- AX-T4 has higher Max video bit rate (400 Mbps vs 205 Mbps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareX-T4
135 × 93 × 64 mm
607 g (1.34 lb / 21.41 oz)
Credit card
85.6 × 54 mm
for scale
OM-3
139 × 89 × 46 mm
413 g (0.91 lb / 14.57 oz)
X-T4 is 5mm narrower than OM-3 but it is also 4mm taller and 18mm thicker.
X-T4 is 194 g heavier than OM-3.
Depth (front-to-back): 64mm X-T4 · 46mm OM-3
Back view, to scale
Width × Height — same proportions as the front of the body.
X-T4
135 × 93 mm
Credit card
85.6 × 54 mm
OM-3
139 × 89 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
X-T4
135 × 64 mm
Credit card
85.6 × 54 mm
OM-3
139 × 46 mm
Sensor size, to scale
X-T4
23.5 × 15.6 mm · APS-C
367 mm² area
OM-3
17.4 × 13 mm · Compact / large-type
226 mm² area
1.6× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
X-T4
Fujifilm X
105+
native lenses available
OM-3
✓ 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
X-T4
AF low-light limit
-7 EV vs -5.5 EV — lower is better
Dimensions (W×H×D mm)
Adds 134.6, 92.8, 63.8
Card types
Adds SD UHS-II, SDXC V90
Card slots
2 vs 1 — higher is better
Max video bit rate
400 Mbps vs 205 Mbps — higher is better
EVF resolution
3,690,000 vs 2,360,000 — higher is better
Burst (mechanical)
15 fps vs 10 fps — higher is better
Resolution
26.1 MP vs 20.4 MP — higher is better
Reasons to choose
OM-3
Subject recognition
Adds People, Birds, Animals…
Dimensions (W×H×D mm)
Adds 139.3, 88.9, 45.8
Card types
Adds SD, SDHC, SDXC
Burst (electronic)
120 fps vs 30 fps — higher is better
AF points / zones
1053 vs 425 — higher is better
ISO max (native)
25,600 vs 12,800 — higher is better
Animal / bird AF
Only OM-3 supports it
Codecs
Adds MOV, MPEG-4 AVC
Both cameras share
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
- ✓IBIS effectiveness — Both 6.5 stops
- ✓Weather sealing — Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
X-T4
Pros
- ✓IBIS
- ✓Dual slots
- ✓Film sims
Cons
- –Superseded by X-T5
- –26MP vs 40MP new models
- –Older AF
OM-3
Pros
- ✓Retro design
- ✓Modern AF
- ✓Compact
Cons
- –MFT sensor
- –Premium for MFT
- –Smaller lens selection
Decided which one is right for you?
Compare live prices for the X-T4 and OM-3 at major authorized retailers.
Fujifilm X-T4
OM System OM-3
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, X-T4 or OM-3?
X-T4 scores 6.5/10 versus 4.0/10 for OM-3 — 26.1MP — solid resolution.
What's the resolution difference between the X-T4 and OM-3?
X-T4 is 26.1 MP and OM-3 is 20.4 MP, so the X-T4 captures more detail for cropping and large prints.
Do the X-T4 and OM-3 have in-body image stabilization?
X-T4 has 6.5-stop in-body image stabilization, while OM-3 has 6.5-stop in-body image stabilization.
Which shoots faster bursts — the X-T4 or the OM-3?
X-T4 reaches 30 fps electronic. OM-3 reaches 120 fps electronic.
What's the weight difference between the X-T4 and OM-3?
X-T4 weighs 607 g and OM-3 weighs 413 g, so the OM-3 is 194 g lighter.
Do the X-T4 and OM-3 record 4K video?
X-T4: 4K up to 60p. OM-3: 4K up to 59.94p.
Are the X-T4 and OM-3 weather sealed?
X-T4: Yes. OM-3: Yes.
Which has better battery life?
Rated battery life is 500 shots (CIPA) for the X-T4 and 640 shots for the OM-3, giving the OM-3 the edge.
How much does each cost?
Both launched at $1,699.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way X-T4 vs OM-3 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Fujifilm and OM System press materials.