OM System
OM-3
Retro-styled MFT body with modern AF and creator-friendly design.
$1,699
Launch priceReleased Jan 2025
OM System
Tough TG-7
Rugged waterproof compact for adventure and macro.
$549
Launch priceReleased Sep 2023
OM-3 is 1.3 years newer.
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Wins
OM-3
Wins
Tough TG-7
2 categories tied
Which would you choose?
TL;DR — Key differences
- AOM-3 has higher AF points / zones (1053 vs 25)
- AOM-3 has higher ISO max (native) (25,600 vs 1,600)
- AOM-3 has higher Burst (electronic) (120 fps vs 20 fps)
- AOM-3 has higher Max video bit rate (205 Mbps vs 102 Mbps)
- BTough TG-7 has lower ISO min (native) (100 vs 200)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
OM-3
139 × 89 × 46 mm
413 g (0.91 lb / 14.57 oz)
Credit card
85.6 × 54 mm
for scale
Tough TG-7
114 × 66 × 33 mm
249 g (0.55 lb / 8.78 oz)
OM-3 is 25mm wider, 23mm taller, and 13mm thicker than Tough TG-7.
OM-3 is 164 g heavier than Tough TG-7.
Depth (front-to-back): 46mm OM-3 · 33mm Tough TG-7
Back view, to scale
Width × Height — same proportions as the front of the body.
OM-3
139 × 89 mm
Credit card
85.6 × 54 mm
Tough TG-7
114 × 66 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
OM-3
139 × 46 mm
Credit card
85.6 × 54 mm
Tough TG-7
114 × 33 mm
Sensor size, to scale
OM-3
17.4 × 13 mm · Compact / large-type
226 mm² area
Lens ecosystem
Native lens selection
OM-3
✓ more lensesMicro Four Thirds
130+
native lenses available
Tough TG-7: mount data unavailable
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-3
Subject recognition
Adds People, Birds, Animals…
Dimensions (W×H×D mm)
Adds 139.3, 88.9, 45.8
AF points / zones
1053 vs 25 — higher is better
ISO max (native)
25,600 vs 1,600 — higher is better
Burst (electronic)
120 fps vs 20 fps — higher is better
Codecs
Adds H.264, H.265, MPEG-4 AVC
Max video bit rate
205 Mbps vs 102 Mbps — higher is better
Eye AF
Only OM-3 supports it
Reasons to choose
Tough TG-7
Dimensions (W×H×D mm)
Adds 113.9, 65.8, 32.7
ISO min (native)
100 vs 200 — lower is better
Weight
249 g vs 413 g — lower is better
Both cameras share
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓1080p max frame rate — Both 59.94 fps
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 1
- ✓Wi-Fi — Both support wi-fi
Pros & cons at a glance
Editorially curated highlights and trade-offs.
OM-3
Pros
- ✓Retro design
- ✓Modern AF
- ✓Compact
Cons
- –MFT sensor
- –Premium for MFT
- –Smaller lens selection
Tough TG-7
Pros
- ✓Waterproof
- ✓Shockproof
- ✓Macro modes
Cons
- –Small sensor
- –Fixed lens
- –Limited low light
Decided which one is right for you?
Compare live prices for the OM-3 and Tough TG-7 at major authorized retailers.
OM System OM-3
OM System Tough TG-7
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for vlogging, OM-3 or Tough TG-7?
OM-3 scores 6.5/10 versus 4.0/10 for Tough TG-7 — 413g — easy to handhold for selfie video.
What's the resolution difference between the OM-3 and Tough TG-7?
OM-3 is 20.4 MP and Tough TG-7 is 12 MP, so the OM-3 captures more detail for cropping and large prints.
Do the OM-3 and Tough TG-7 have in-body image stabilization?
OM-3 has 6.5-stop in-body image stabilization, while Tough TG-7 has in-body image stabilization.
Which shoots faster bursts — the OM-3 or the Tough TG-7?
OM-3 reaches 120 fps electronic. Tough TG-7 reaches 20 fps electronic.
What's the weight difference between the OM-3 and Tough TG-7?
OM-3 weighs 413 g and Tough TG-7 weighs 249 g, so the Tough TG-7 is 164 g lighter.
Do the OM-3 and Tough TG-7 record 4K video?
OM-3: 4K up to 59.94p. Tough TG-7: 4K up to 29.97p.
Are the OM-3 and Tough TG-7 weather sealed?
OM-3: Yes. Tough TG-7: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the OM-3 and 340 shots for the Tough TG-7, giving the OM-3 the edge.
How much does each cost?
OM-3 launched at $1,699 and Tough TG-7 at $549. The Tough TG-7 is $1,150 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way OM-3 vs Tough TG-7 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of OM System press materials.