Pentax K-x vs Panasonic GH4

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Pentax K-x vs Panasonic GH4

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APS-C 369.7mm²
12.4 megapixels
ISO 200 - 6400

Go in depth with our full Pentax K-x Review.
See real-world photos taken with the K-x.

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

Go in depth with our full Panasonic GH4 Review.
How does it shoot? Panasonic GH4 in the real world.
See real-world photos taken with the GH4.
Compare Panasonic GH4 image quality against competitors.
What’s the bottom line? Read our Panasonic GH4 conclusion.

Succeeded by the Pentax K-r
Compare K-x vs K-r

Succeeded by the Panasonic GH5
Compare GH4 vs GH5

Compare PENTAX K-R vs PANASONIC GH5

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Differences

Pentax K-x advantages over Panasonic GH4

Larger sensor
APS-C vs 4/3
More sensor area. Bigger is (generally) better.
In-Camera Image Stabilization
Yes vs No
Reduces the effects of camera shake at slower shutter speeds
Bigger pixels
~ 5.53 vs 3.75 microns
Better low-light and dynamic range (all else equal)
Fast startup
~0.60 vs 0.8 sec
Faster startup lets you catch the moment

Panasonic GH4 advantages over Pentax K-x

Tilt-swivel screen
Tilt-swivel vs none
Tilt and swivel the screen for maximum shooting flexibility
Focus peaking
Peaker vs Non-peaker
Your camera will highlight what's in focus
Shoot 4K video
4K (DCI) vs 720p
Make sure you have a fast computer
Touchscreen
Touch vs No touch
Interact with your camera just like your smartphone
Built-in Wi-Fi
Wi-Fi vs None
Share your photos wirelessly
NFC
Yes vs No
Simplifies pairing your camera with supported phones
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

530 vs 420 shots
Capture more photos
External Mic Jack
Jack vs No jack
Improved sound fidelity when shooting video
Newer
11 years vs 15 years old
Newer cameras often support more advanced features
HDMI out
HDMI out vs None
Use HDMI output to monitor or review video
More dots on screen
1037k vs 230k dots
Can mean greater resolution or a brighter screen
Shoots 1080p video
Yes vs No
You'll want this if you shoot video
More viewfinder magnification
0.67x vs 0.57x
Get a bigger view of the scene through the eye-level viewfinder
More pixels
16.1 vs 12.4 megapixels
Higher resolution photos
Shoots 60p video
Yes vs No
A faster framerate can give you more editing options
Headphone jack
Yes vs No
Monitor audio recording while you shoot video
Longer exposure
60 vs 30 sec
Long exposures for night shots
Faster JPEG shooting
12.8 fps vs 4.3 fps
Faster JPEG shooting (burst mode)
Bigger JPEG buffer
Unlimited vs 25 shots
Take more JPEG shots before waiting (burst mode)
Slow-motion videos
Yes vs No
Shoot slow-motion videos
Higher extended ISO
25600 vs 12800 ISO
Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

Eye-level viewfinder
Both provide
You'll be able to frame photos even when the sun is out
Internal flash
Both provide
Useful in a pinch for fill flash
Hot shoe
Both provide
Off-camera flashes open new possibilities
Bulb shutter
Both provide
Hold the shutter open manually for long exposures

Common Weaknesses

In-camera panoramas
Neither provide
Stitches multiple shots into a panoramic photo
Built-in Bluetooth
Neither provide
Always-on wireless connectivity
Built-in GPS
Neither provide
Geotag your photos
On-sensor phase detect
Neither provide
Usually improves live view and video AF performance
Top deck display
Neither provide
Check settings with a screen on top of the camera
Dual card slots
Neither provide
Gives you more storage flexibility

User reviews

Amazon
Adorama
Read K-x User Reviews

Amazon
Adorama
Read GH4 User Reviews

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Review Excerpt

Read our Pentax K-x Full Review

Excellent still image quality for its class; Fantastic, highly-detailed video quality; Superior video recording chops with 4K video (both Cinema 4K and Ultra HD); Responsive all-around performer with great AF performance and burst shooting; Rolling shutter is minimal with 60p and 30p video; Splash- and dust-proof magnesium alloy body; Built-in Wi-Fi with NFC.
High ISO performance not as good as some APS-C models (IQ drops quickly past ISO 3200); Overall still image quality not significantly better than the GH3; Sluggish buffer clearing with RAW files; Rolling shutter noticeable on 4K video; Not as compact as most mirrorless cameras.
Read our Panasonic GH4 Review

The Competition

Compared to Sony DSLR-A380

Pentax K-x

Sony DSLR-A380

$702
APS-C

Lens selection
Less expensive

$849
APS-C

Tiltable Screen
HDMI out

Compare Pentax K-x vs Sony DSLR-A380

Panasonic GH4

Sony DSLR-A380

$899
4/3

Lens selection
Focus peaking

$849
APS-C

Larger sensor
In-Camera Image Stabilization

Compare Panasonic GH4 vs Sony DSLR-A380

Compared to Pentax K-7

Pentax K-x

Pentax K-7

$702
APS-C

Less expensive
Higher effective ISO

$1300
APS-C

Longer stills battery life
Top deck display

Compare Pentax K-x vs Pentax K-7

Panasonic GH4

Pentax K-7

$899
4/3

Focus peaking
Tilt-swivel screen

$1300
APS-C

Larger sensor
In-Camera Image Stabilization

Compare Panasonic GH4 vs Pentax K-7

Compared to Pentax K-r

Pentax K-x

Pentax K-r

$702
APS-C

Less expensive
Shoots 24p video

$850
APS-C

Fast startup
External Mic Jack

Compare Pentax K-x vs Pentax K-r

Panasonic GH4

Pentax K-r

$899
4/3

Tilt-swivel screen
Focus peaking

$850
APS-C

Larger sensor
In-Camera Image Stabilization

Compare Panasonic GH4 vs Pentax K-r

Compared to Panasonic GH3

Pentax K-x

Panasonic GH3

$702
APS-C

Less expensive
Larger sensor

$798
4/3

Tilt-swivel screen
Touchscreen

Compare Pentax K-x vs Panasonic GH3

Panasonic GH4

Panasonic GH3

$899
4/3

Focus peaking
Shoot 4K video

$798
4/3

Compare Panasonic GH4 vs Panasonic GH3

Compared to Olympus E-M1

Pentax K-x

Olympus E-M1

$702
APS-C

Larger sensor
Bigger pixels

$1099
4/3

Focus peaking
Touchscreen

Compare Pentax K-x vs Olympus E-M1

Panasonic GH4

Olympus E-M1

$899
4/3

Less expensive
Tilt-swivel screen

$1099
4/3

In-Camera Image Stabilization
On-sensor phase detect

Compare Panasonic GH4 vs Olympus E-M1

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