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PowerShot G7 X Mark III

Canon

PowerShot G7 X Mark III

Pocket 1-inch compact with a 24–100mm f/1.8–2.8 zoom, 4K video, Dual Pixel AF, and live streaming — a classic vlog/travel camera.

$749

Launch price

Released Jul 2019

vs
HERO12 Black

GoPro

HERO12 Black

1/1.9-inch action camera with HDR 5.3K60, 4K120, 2.7K240 slow-mo, HyperSmooth 6.0, and 10m waterproof body.

$349

Launch price

Released Sep 2023

HERO12 Black is 4.2 years newer.

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Wins

3categories

PowerShot G7 X Mark III

Wins

9categories

HERO12 Black

Sports & ActionTravel

3 categories tied

Which would you choose?

TL;DR — Key differences

PowerShot G7 X Mark III wins 1 categories·HERO12 Black wins 4 categories
  • BHERO12 Black has higher RAW buffer depth (60 frames vs 0 frames)
  • BHERO12 Black has higher IBIS effectiveness (6 stops vs 0 stops)
  • BHERO12 Black has higher 4K max frame rate (120 fps vs 29.97 fps)
  • BHERO12 Black has higher 1080p max frame rate (240 fps vs 59.94 fps)
  • APowerShot G7 X Mark III has higher Burst (mechanical) (20 fps vs 6 fps)

Key specs at a glance

PowerShot G7 X Mark IIIHERO12 Black
Resolution20.1 MP27.6 MP
Sensor13.2 × 8.8 mm1/1.9"-Type
ISO max12,8006,400
Burst20 fps15 fps
4K29.97 fps120 fps
IBISNoNo
Weight304 g154 g
Battery320 shots640 shots

Size and weight, to scale

PowerShot G7 X Mark III front view

PowerShot G7 X Mark III

105 × 61 × 41 mm

304 g (0.67 lb / 10.72 oz)

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

Credit card

85.6 × 54 mm

for scale

HERO12 Black front view

HERO12 Black

72 × 34 × 51 mm

154 g (0.34 lb / 5.43 oz)

PowerShot G7 X Mark III is 9mm thinner than HERO12 Black but it is also 33mm wider and 27mm taller.

PowerShot G7 X Mark III is 150 g heavier than HERO12 Black.

Depth (front-to-back): 41mm PowerShot G7 X Mark III · 51mm HERO12 Black

Back view, to scale

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

PowerShot G7 X Mark III back view

PowerShot G7 X Mark III

105 × 61 mm

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

Credit card

85.6 × 54 mm

HERO12 Black back view

HERO12 Black

72 × 34 mm

Top view, to scale

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

PowerShot G7 X Mark III top view

PowerShot G7 X Mark III

105 × 41 mm

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

Credit card

85.6 × 54 mm

HERO12 Black

72 × 51 mm

Sensor size, to scale

PowerShot G7 X Mark III

13.2 × 8.8 mm · 1-inch

116 mm² area

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use casePowerShot G7 X Mark IIIHERO12 Black
Portrait
3.0Limited✓ wins
2.0Limited
Sports & Action
2.5Limited
10.0Excellent✓ wins
Video & Hybrid
2.0Limited
3.0Limited✓ wins
Landscape
0.0Limited
3.0Limited✓ wins
Travel
4.5Fair
8.0Excellent✓ wins
Wildlife
2.5Limited
4.5Fair✓ wins
Vlogging
4.5Fair✓ wins
4.0Fair

Why pick one over the other

Reasons to choose

PowerShot G7 X Mark III

  • Subject recognition

    Adds Human

  • Codecs

    Adds H.264, MP4

  • Dimensions (W×H×D mm)

    Adds 105, 60.9, 41.4

  • Card types

    Adds SD, SDHC, SDXC

  • Burst (mechanical)

    20 fps vs 6 fps — higher is better

  • AA filter

    Only PowerShot G7 X Mark III supports it

  • ISO max (native)

    12,800 vs 6,400 — higher is better

  • Eye AF

    Only PowerShot G7 X Mark III supports it

Reasons to choose

HERO12 Black

  • RAW buffer depth

    60 frames vs 0 frames — higher is better

  • Codecs

    Adds H.265/HEVC

  • IBIS effectiveness

    6 stops vs 0 stops — higher is better

  • Stabilization modes

    Adds HyperSmooth 6.0, 360° Horizon Lock, AutoBoost

  • Dimensions (W×H×D mm)

    Adds 71.8, 33.6, 50.8

  • Card types

    Adds microSD, microSDHC, microSDXC

  • 4K max frame rate

    120 fps vs 29.97 fps — higher is better

  • 1080p max frame rate

    240 fps vs 59.94 fps — higher is better

Both cameras share

  • ISO min (native)Both 100
  • Card slotsBoth 1
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth

Pros & cons at a glance

Editorially curated highlights and trade-offs.

PowerShot G7 X Mark III

Pros

  • 1-inch stacked 20.1MP sensor
  • 24–100mm equivalent zoom (4.2×)
  • 4K 30p and Full HD 120p
  • Dual Pixel CMOS AF
  • Live streaming support

Cons

  • Tilt-only screen (not fully articulating)
  • 4K limited to 30fps
  • AF weaker than Sony ZV-1 for video
  • No built-in ND filter

HERO12 Black

Pros

  • HDR 5.3K and 4K120
  • HyperSmooth 6.0
  • 10m waterproof
  • Strong used value

Cons

  • Superseded by HERO13
  • Fixed lens
  • Smaller battery than HERO13

Decided which one is right for you?

Compare live prices for the PowerShot G7 X Mark III and HERO12 Black at major authorized retailers.

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Full specifications

= category winner

PowerShot G7 X Mark III
HERO12 Black
Resolution
20.1 MP
27.6 MP+37%
Sensor type
1"-Type CMOS
CMOS
Sensor size
13.2 × 8.8 mm
1/1.9"-Type
AA filter
Yes
No
PowerShot G7 X Mark III
HERO12 Black
Aperture
1.8 to 2.8
2.5
Focal length (35mm equiv.)
24 to 100mm
12 to 39mm
Field of view
156 °
PowerShot G7 X Mark III
HERO12 Black
Processor
DIGIC 8
Image processor
PowerShot G7 X Mark III
HERO12 Black
ISO min (native)
100
100
ISO max (native)
12,800+1 stop
6,400
ISO max (expanded)
25,600
6,400
PowerShot G7 X Mark III
HERO12 Black
Shutter type
Mechanical + Electronic
Electronic shutter
Max mechanical speed
1/2000 sec
1/8000 sec
Max electronic speed
1/16000 sec
1/8000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for sports, PowerShot G7 X Mark III or HERO12 Black?

HERO12 Black scores 10.0/10 versus 2.5/10 for PowerShot G7 X Mark III — 15fps burst — fast action ready.

What's the resolution difference between the PowerShot G7 X Mark III and HERO12 Black?

PowerShot G7 X Mark III is 20.1 MP and HERO12 Black is 27.6 MP, so the HERO12 Black captures more detail for cropping and large prints.

How does stabilization compare between the PowerShot G7 X Mark III and HERO12 Black?

PowerShot G7 X Mark III does not have IBIS, while HERO12 Black does not have IBIS.

Which shoots faster bursts — the PowerShot G7 X Mark III or the HERO12 Black?

PowerShot G7 X Mark III reaches 20 fps electronic. HERO12 Black reaches 15 fps electronic.

What's the weight difference between the PowerShot G7 X Mark III and HERO12 Black?

PowerShot G7 X Mark III weighs 304 g and HERO12 Black weighs 154 g, so the HERO12 Black is 150 g lighter.

Do the PowerShot G7 X Mark III and HERO12 Black record 4K video?

PowerShot G7 X Mark III: 4K up to 29.97p. HERO12 Black: 4K up to 120p.

Are the PowerShot G7 X Mark III and HERO12 Black weather sealed?

PowerShot G7 X Mark III: No. HERO12 Black: Yes.

Which has better battery life?

Rated battery life is 320 shots (CIPA) for the PowerShot G7 X Mark III and 640 shots for the HERO12 Black, giving the HERO12 Black the edge.

How much does each cost?

PowerShot G7 X Mark III launched at $749 and HERO12 Black at $349. The HERO12 Black is $400 less.

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

Add any camera to get a three-way PowerShot G7 X Mark III vs HERO12 Black vs X comparison.

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.

Product images courtesy of Canon and GoPro press materials.