OM System
PEN
First OM SYSTEM-branded PEN: compact rangefinder-style Micro Four Thirds body with 20.4MP Live MOS, 5-axis IBIS, built-in EVF, IPX1 sealing, and in-camera computational modes.
$1,000
Launch priceReleased Sep 2026
OM System
Tough TG-7
Rugged waterproof compact for adventure and macro.
$549
Launch priceReleased Sep 2023
PEN is 2.9 years newer.
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Wins
PEN
Wins
Tough TG-7
1 categories tied
Which would you choose?
TL;DR — Key differences
- APEN has higher ISO max (native) (25,600 vs 1,600)
- APEN has higher AF points / zones (121 vs 25)
- APEN has higher Max video bit rate (240 Mbps vs 102 Mbps)
- APEN has higher RAW buffer depth (29 frames vs 14 frames)
- 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
PEN
126 × 75 × 43 mm
393 g (0.87 lb / 13.86 oz)
Credit card
85.6 × 54 mm
for scale
Tough TG-7
114 × 66 × 33 mm
249 g (0.55 lb / 8.78 oz)
PEN is 12mm wider, 9mm taller, and 11mm thicker than Tough TG-7.
PEN is 144 g heavier than Tough TG-7.
Depth (front-to-back): 43mm PEN · 33mm Tough TG-7
Back view, to scale
Width × Height — same proportions as the front of the body.
PEN
126 × 75 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.
PEN
126 × 43 mm
Credit card
85.6 × 54 mm
Tough TG-7
114 × 33 mm
Sensor size, to scale
PEN
17.4 × 13 mm · Compact / large-type
226 mm² area
Lens ecosystem
Native lens selection
PEN
✓ 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
PEN
Subject recognition
Adds Human, Dog, Cat
Dimensions (W×H×D mm)
Adds 125.8, 74.5, 43.3
ISO max (native)
25,600 vs 1,600 — higher is better
AF points / zones
121 vs 25 — higher is better
Codecs
Adds H.264, MPEG-4 AVC
Max video bit rate
240 Mbps vs 102 Mbps — higher is better
RAW buffer depth
29 frames vs 14 frames — higher is better
Eye AF
Only PEN 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 393 g — lower is better
Both cameras share
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓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
- ✓Bluetooth — Both support bluetooth
Pros & cons at a glance
Editorially curated highlights and trade-offs.
PEN
Pros
- ✓393g rangefinder body with built-in 2.36M-dot EVF
- ✓First PEN with IPX1 dust/splash sealing
- ✓5-axis IBIS up to 5.5 stops + 121-point cross-type AF
- ✓Hi-Res, Live ND, Focus Stacking, HDR via CP button
- ✓4K / C4K video, vertical video, 3.5mm mic jack
Cons
- –Micro Four Thirds sensor vs APS-C/FF rivals
- –4K capped at 30p (C4K 24p only)
- –IPX1 is lighter sealing than OM-5 II / OM-3
- –Single SD slot, no headphone jack
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 PEN and Tough TG-7 at major authorized retailers.
OM System PEN
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, PEN or Tough TG-7?
PEN scores 6.5/10 versus 4.0/10 for Tough TG-7 — 393g — easy to handhold for selfie video.
What's the resolution difference between the PEN and Tough TG-7?
PEN is 20.4 MP and Tough TG-7 is 12 MP, so the PEN captures more detail for cropping and large prints.
Do the PEN and Tough TG-7 have in-body image stabilization?
PEN has 5.5-stop in-body image stabilization, while Tough TG-7 has in-body image stabilization.
Which shoots faster bursts — the PEN or the Tough TG-7?
PEN reaches 30 fps electronic. Tough TG-7 reaches 20 fps electronic.
What's the weight difference between the PEN and Tough TG-7?
PEN weighs 393 g and Tough TG-7 weighs 249 g, so the Tough TG-7 is 144 g lighter.
Do the PEN and Tough TG-7 record 4K video?
PEN: 4K up to 30p. Tough TG-7: 4K up to 29.97p.
Are the PEN and Tough TG-7 weather sealed?
PEN: Yes. Tough TG-7: Yes.
Which has better battery life?
Rated battery life is 410 shots (CIPA) for the PEN and 340 shots for the Tough TG-7, giving the PEN the edge.
How much does each cost?
PEN launched at $1,000 and Tough TG-7 at $549. The Tough TG-7 is $451 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way PEN vs Tough TG-7 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed September 2026.
Product images courtesy of OM System press materials.