Panasonic GM1 vs Pentax K-3 II

Cameras
Compare Cameras
Panasonic GM1 vs Pentax K-3 II

Leave Feedback

4/3 224.9mm²
16.0 megapixels
ISO 200 - 25,600

Go in depth with our full Panasonic GM1 Review.
How does it shoot? Panasonic GM1 in the real world.
See real-world photos taken with the GM1.
Compare Panasonic GM1 image quality against competitors.
What’s the bottom line? Read our Panasonic GM1 conclusion.

APS-C 366.6mm²
24.4 megapixels
ISO 100 - 51,200

Go in depth with our full Pentax K-3 II Review.
How does it shoot? Pentax K-3 II in the real world.
See real-world photos taken with the K-3 II.
Compare Pentax K-3 II image quality against competitors.
What’s the bottom line? Read our Pentax K-3 II conclusion.

Succeeded by the Panasonic GM5
Compare GM1 vs GM5

Succeeded by the Pentax K-3 III
Compare K-3 II vs K-3 III

Compare PANASONIC GM5 vs PENTAX K-3 III

Buy From

Differences

Panasonic GM1 advantages over Pentax K-3 II

Touchscreen
Touch vs No touch
Interact with your camera just like your smartphone
Fast startup
~0.90 vs 1.2 sec
Faster startup lets you catch the moment
Built-in Wi-Fi
Wi-Fi vs None
Share your photos wirelessly
Internal flash
Internal flash vs None
Useful in a pinch for fill flash
Thinner
30 mm vs 77 mm
Thinner
Longer exposure
60 vs 30 sec
Long exposures for night shots
Faster JPEG shooting
9.9 fps vs 8.1 fps
Faster JPEG shooting (burst mode)
Faster RAW shooting
10.3 fps vs 8.2 fps
Faster RAW shooting in burst mode
Faster shutter
1/16000 vs 1/8000 sec
Shoot wide open in bright light

Pentax K-3 II advantages over Panasonic GM1

Larger sensor
APS-C vs 4/3
More sensor area. Bigger is (generally) better.
Eye-level viewfinder
Eye-level vs Rear display only
You'll be able to frame photos even when the sun is out
In-Camera Image Stabilization
Yes vs No
Reduces the effects of camera shake at slower shutter speeds
High resolution composite
Yes vs No
Combine multiple shots to form a super hi-res version
Higher effective ISO

Higher effective ISO

Maximum effective ISO is an estimate of the highest sensitivity at which a camera can capture excellent quality photos.

Cameras with higher effective ISO will be better choices for indoor photography, night shooting, and indoor sports photography, especially if you intend to make large prints.

You can learn more at our glossary entry.

Maximum effective ISO test data courtesy of DxO Mark.
K-3 II test data on DxO Mark GM1 test data on DxO Mark

1,106 vs 660 iso
Take photos in low light with less noise
More dynamic range

More dynamic range

Cameras with more dynamic range allow you to take photos with dramatic differences in highlight and shadow areas while retaining detail in both.

Think of a brilliant sunset on a rocky beach: Bright sunset in the background, with dark rocks in the foreground. High dynamic range means more of the extremes will be faithfully reproduced.

Dynamic range test data courtesy of DxO Mark.
K-3 II test data on DxO Mark GM1 test data on DxO Mark

13.6 vs 11.7 evs
Retain detail in highlight and shadows
Built-in GPS
GPS vs None
Geotag your photos
Longer stills battery life
More info

Longer stills battery life

Cameras with longer battery life can take more photos before exhausting their batteries.

Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable

720 vs 230 shots
Capture more photos
Top deck display
Yes vs No
Check settings with a screen on top of the camera
External Mic Jack
Jack vs No jack
Improved sound fidelity when shooting video
Higher max flash sync
1/180 vs 1/50 sec
Reduce the effect of ambient light in flash shots
Hot shoe
Hot shoe vs None
Off-camera flashes open new possibilities
More pixels
24.4 vs 16.0 megapixels
Higher resolution photos
Dual card slots
Yes vs No
Gives you more storage flexibility
Headphone jack
Yes vs No
Monitor audio recording while you shoot video
Optional anti-aliasing filter
Optional vs Fixed
Lets you choose sharper photos or reduced moiré
Bulb shutter
Bulb vs No bulb
Hold the shutter open manually for long exposures
Bigger JPEG buffer
60 vs 10 shots
Take more JPEG shots before waiting (burst mode)
Bigger RAW buffer
22 vs 7 shots
Larger buffer for RAW shots (burst mode)
Higher extended ISO
51200 vs 25600 ISO
Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

Focus peaking
Both provide
Your camera will highlight what's in focus
HDMI out
Both provide
Use HDMI output to monitor or review video

Common Weaknesses

Tilt-swivel screen
Neither provide
Tilt and swivel the screen for maximum shooting flexibility
In-camera panoramas
Neither provide
Stitches multiple shots into a panoramic photo
Tiltable Screen
Neither provide
Tilt the screen for shooting flexbility
NFC
Neither provide
Simplifies pairing your camera with supported phones
Built-in Bluetooth
Neither provide
Always-on wireless connectivity
On-sensor phase detect
Neither provide
Usually improves live view and video AF performance
Slow-motion videos
Neither provide
Shoot slow-motion videos

User reviews

Amazon
Adorama
Read GM1 User Reviews

Amazon
Adorama
Read K-3 II User Reviews

Buy From

Your purchases support this site

Buy the Panasonic GM1

Kit with 12-32mm Lens

All GM1 Deals

Your purchases support this site

Buy the Pentax K-3 II

Body Only (Black)

All K-3 II Deals

Review Excerpt

Large Four Thirds sensor is impressive for a camera this small; Shares sensor and processor of GX7; Excellent image quality with class-leading high ISO performance; Responsive all-around performer; AF system is fast and accurate; Easy to use and responsive touchscreen; Built-in Wi-Fi with remote control and sharing features; Lightweight and pocketable design makes it easy to carry everywhere.
Can be awkward to use with larger lenses; Rear dial is easy to accidentally press; Lacks a hot-shoe for EVF or external flash; Weak built-in flash; 1/50s flash sync; No 1080p60 video; No external headphone jack or mic input.
Read our Panasonic GM1 Review

Top-notch image quality; Spectacular detail from Pixel Shift Resolution; Better performance than K-3; Geotag images with no accessories; Great ergonomics in a compact body; Clever on-demand low-pass filtering; Broad sensitivity range; Large and bright viewfinder for an APS-C camera; Dual card slots
No built-in flash strobe; No wireless flash support out of the box; AstroTracer function can be finicky; AE Lock button is poorly located; Below-average battery life for a prosumer DSLR; Requires a different battery grip accessory than its predecessors
Read our Pentax K-3 II Review

The Competition

Compared to Olympus E-PL6

Panasonic GM1

Olympus E-PL6

$479
4/3

Focus peaking
Built-in Wi-Fi

$299
4/3

Less expensive
In-Camera Image Stabilization

Compare Panasonic GM1 vs Olympus E-PL6

Pentax K-3 II

Olympus E-PL6

$830
APS-C

Focus peaking
Larger sensor

$299
4/3

Touchscreen
Tiltable Screen

Compare Pentax K-3 II vs Olympus E-PL6

Compared to Panasonic GM5

Panasonic GM1

Panasonic GM5

$479
4/3

Less expensive
Internal flash

$898
4/3

Eye-level viewfinder
In-camera panoramas

Compare Panasonic GM1 vs Panasonic GM5

Pentax K-3 II

Panasonic GM5

$830
APS-C

Larger sensor
In-Camera Image Stabilization

$898
4/3

Touchscreen
In-camera panoramas

Compare Pentax K-3 II vs Panasonic GM5

Compared to Panasonic GF7

Panasonic GM1

Panasonic GF7

$479
4/3

$590
4/3

Less expensive
In-camera panoramas

Compare Panasonic GM1 vs Panasonic GF7

Pentax K-3 II

Panasonic GF7

$830
APS-C

Larger sensor
Eye-level viewfinder

$590
4/3

Touchscreen
In-camera panoramas

Compare Pentax K-3 II vs Panasonic GF7

Compared to Canon T6i

Panasonic GM1

Canon T6i

$479
4/3

Focus peaking
Thinner

$699
APS-C

Larger sensor
Tilt-swivel screen

Compare Panasonic GM1 vs Canon T6i

Pentax K-3 II

Canon T6i

$830
APS-C

Focus peaking
Larger sensor

$699
APS-C

Less expensive
Tilt-swivel screen

Compare Pentax K-3 II vs Canon T6i

Compared to Pentax KP

Panasonic GM1

Pentax KP

$479
4/3

Touchscreen
Fast startup

$999
APS-C

Larger sensor
Eye-level viewfinder

Compare Panasonic GM1 vs Pentax KP

Pentax K-3 II

Pentax KP

$830
APS-C

Less expensive
Built-in GPS

$999
APS-C

Tiltable Screen
Built-in Wi-Fi

Compare Pentax K-3 II vs Pentax KP

Compare Other Cameras?