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OM System

OM-1

First OM System flagship with cross-type AF and 50fps burst.

$2,199

Launch price

Released Feb 2022

vs
Tough TG-7

OM System

Tough TG-7

Rugged waterproof compact for adventure and macro.

$549

Launch price

Released Sep 2023

Tough TG-7 is 1.6 years newer.

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Wins

9categories

OM-1

Sports & ActionTravel

Wins

1categories

Tough TG-7

Sports & ActionTravel

1 categories tied

Which would you choose?

TL;DR — Key differences

OM-1 wins 4 categories·Tough TG-7 wins 1 categories
  • AOM-1 has higher ISO max (native) (102,400 vs 1,600)
  • AOM-1 has higher AF points / zones (1053 vs 25)
  • AOM-1 has higher Burst (electronic) (120 fps vs 20 fps)
  • AOM-1 has higher 1080p max frame rate (240 fps vs 59.94 fps)
  • BTough TG-7 has lower Weight (249 g vs 599 g)

Key specs at a glance

OM-1Tough TG-7
Resolution20.4 MP12 MP
SensorMFT1/2.3"
ISO max102,4001,600
Burst120 fps20 fps
4K60 fps29.97 fps
IBIS8-stopYes
Weight599 g249 g
Battery520 shots340 shots

Size and weight, to scale

OM-1

135 × 92 × 73 mm

599 g (1.32 lb / 21.13 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

Tough TG-7 front view

Tough TG-7

114 × 66 × 33 mm

249 g (0.55 lb / 8.78 oz)

OM-1 is 21mm wider, 26mm taller, and 40mm thicker than Tough TG-7.

OM-1 is 350 g heavier than Tough TG-7.

Depth (front-to-back): 73mm OM-1 · 33mm Tough TG-7

Back view, to scale

Width × Height — same proportions as the front of the body.

OM-1

135 × 92 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

Tough TG-7 back view

Tough TG-7

114 × 66 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

OM-1

135 × 73 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

Tough TG-7 top view

Tough TG-7

114 × 33 mm

Sensor size, to scale

OM-1

17.4 × 13 mm · Compact / large-type

226 mm² area

Lens ecosystem

Native lens selection

OM-1

✓ more lenses

Micro Four Thirds

130+

native lenses available

60 first-party70 third-party

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

Use caseOM-1Tough TG-7
Portrait
4.0Fair✓ wins
2.0Limited
Sports & Action
10.0Excellent✓ wins
7.5Good
Video & Hybrid
5.5Fair✓ wins
2.0Limited
Landscape
2.5Limited
2.5Limited
Travel
7.0Good
7.0Good
Wildlife
6.5Good✓ wins
5.5Fair
Vlogging
7.0Good✓ wins
4.0Fair

Why pick one over the other

Reasons to choose

OM-1

  • Subject recognition

    Adds People, Birds, Animals…

  • Dimensions (W×H×D mm)

    Adds 134.8, 91.6, 72.7

  • Card types

    Adds SD UHS-II, SD UHS-I

  • ISO max (native)

    102,400 vs 1,600 — higher is better

  • AF points / zones

    1053 vs 25 — higher is better

  • Burst (electronic)

    120 fps vs 20 fps — higher is better

  • 1080p max frame rate

    240 fps vs 59.94 fps — higher is better

  • Codecs

    Adds H.264, H.265

Reasons to choose

Tough TG-7

  • Dimensions (W×H×D mm)

    Adds 113.9, 65.8, 32.7

  • Card types

    Adds SD, SDHC, SDXC

  • Weight

    249 g vs 599 g — lower is better

Both cameras share

  • Pre-Capture / Pre-ReleaseBoth support pre-capture / pre-release
  • In-body stabilization (IBIS)Both support in-body stabilization (ibis)
  • Weather sealingBoth support weather sealing
  • Card slotsBoth 1
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth

Pros & cons at a glance

Editorially curated highlights and trade-offs.

OM-1

Pros

  • 50fps burst
  • Great weather sealing
  • Computational modes

Cons

  • MFT sensor
  • Superseded by OM-1 II
  • Smaller than FF

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-1 and Tough TG-7 at major authorized retailers.

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Full specifications

= category winner

OM-1
Tough TG-7
Resolution
20.4 MP+70%
12 MP
Sensor type
4/3 Stacked BSI Live MOS
CMOS
Sensor size
17.4 x 13.0 mm
1/2.3"
AA filter
No
No
OM-1
Tough TG-7
Aperture
2-4.9
Focal length (35mm equiv.)
25-100
OM-1
Tough TG-7
Processor
TruePic X
TruePic VIII
OM-1
Tough TG-7
ISO min (native)
80−20 less
100
ISO max (native)
102,400+6 stops
1,600
ISO max (expanded)
102,400
12,800
OM-1
Tough TG-7
Shutter type
Computerised focal-plane shutter + electronic shutter
Electronic shutter
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/32000 sec
1/2000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for video, OM-1 or Tough TG-7?

OM-1 scores 5.5/10 versus 2.0/10 for Tough TG-7 — 4K recording.

What's the resolution difference between the OM-1 and Tough TG-7?

OM-1 is 20.4 MP and Tough TG-7 is 12 MP, so the OM-1 captures more detail for cropping and large prints.

Do the OM-1 and Tough TG-7 have in-body image stabilization?

OM-1 has 8-stop in-body image stabilization, while Tough TG-7 has in-body image stabilization.

Which shoots faster bursts — the OM-1 or the Tough TG-7?

OM-1 reaches 120 fps electronic. Tough TG-7 reaches 20 fps electronic.

What's the weight difference between the OM-1 and Tough TG-7?

OM-1 weighs 599 g and Tough TG-7 weighs 249 g, so the Tough TG-7 is 350 g lighter.

Do the OM-1 and Tough TG-7 record 4K video?

OM-1: 4K up to 60p. Tough TG-7: 4K up to 29.97p.

Are the OM-1 and Tough TG-7 weather sealed?

OM-1: Yes. Tough TG-7: Yes.

Which has better battery life?

Rated battery life is 520 shots (CIPA) for the OM-1 and 340 shots for the Tough TG-7, giving the OM-1 the edge.

How much does each cost?

OM-1 launched at $2,199 and Tough TG-7 at $549. The Tough TG-7 is $1,650 less.

Can't decide between two? Compare a third camera.

Add any camera to get a three-way OM-1 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.