OM System
OM-3
Retro-styled MFT body with modern AF and creator-friendly design.
$1,699
Released Jan 2025
OM System
Tough TG-7
Rugged waterproof compact for adventure and macro.
$549
Released Sep 2023
OM-3 is 1.3 years newer.
Wins
OM-3
Wins
Tough TG-7
3 categories tied
TL;DR — Key differences
- AOM-3 has higher AF points / zones (1053 vs 25)
- AOM-3 has higher ISO max (native) (102,400 vs 12,800)
- AOM-3 has higher Burst (electronic) (120 fps vs 20 fps)
- AOM-3 has higher 4K max frame rate (60 fps vs 30 fps)
- BTough TG-7 has lower Weight (249 g vs 496 g)
Key specs at a glance
Size and weight, to scale
OM-3
139 × 89 × 46 mm
496 g (1.09 lb / 17.50 oz)
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 247 g heavier than Tough TG-7.
Depth (front-to-back): 46mm OM-3 · 33mm Tough TG-7
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)
102,400 vs 12,800 — higher is better
Burst (electronic)
120 fps vs 20 fps — higher is better
Eye AF
Only OM-3 supports it
Animal / bird AF
Only OM-3 supports it
4K max frame rate
60 fps vs 30 fps — higher is better
Reasons to choose
Tough TG-7
Dimensions (W×H×D mm)
Adds 113.9, 65.8, 32.7
Weight
249 g vs 496 g — lower is better
Both cameras share
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓Max video bit rate — Both 150 Mbps
- ✓Weather sealing — Both support weather sealing
- ✓Battery life (CIPA) — Both 640 shots
- ✓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
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 7.5/10 versus 3.0/10 for Tough TG-7 — 496g — 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 does not have IBIS.
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 496 g and Tough TG-7 weighs 249 g, so the Tough TG-7 is 247 g lighter.
Do the OM-3 and Tough TG-7 record 4K video?
OM-3: 4K up to 60p. Tough TG-7: 4K up to 30p.
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 640 shots for the Tough TG-7, giving the Tough TG-7 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.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.