Sony RX100 IV vs Pentax KP

Cameras
Compare Cameras
Sony RX100 IV vs Pentax KP

Leave Feedback

1 inch 116.2mm²
20.1 megapixels
24.00mm - 70.00mm (35mm eq.)

Go in depth with our full Sony RX100 IV Review.
How does it shoot? Sony RX100 IV in the real world.
See real-world photos taken with the RX100 IV.
Compare Sony RX100 IV image quality against competitors.
What’s the bottom line? Read our Sony RX100 IV conclusion.

APS-C 366.6mm²
24.3 megapixels
ISO 100 - 819,200

Go in depth with our full Pentax KP Review.
How does it shoot? Pentax KP in the real world.
See real-world photos taken with the KP.

Buy From

Differences

Sony RX100 IV advantages over Pentax KP

Shoot 4K video
4K (UHD) vs 1080p
Make sure you have a fast computer
In-camera panoramas
Yes vs No
Stitches multiple shots into a panoramic photo
NFC
Yes vs No
Simplifies pairing your camera with supported phones
Integrated ND filter
Yes vs No
Shoot in daylight with a large aperture or slow shutter
Thinner
41 mm vs 75 mm
Thinner
Higher max flash sync
1/2000 vs 1/180 sec
Reduce the effect of ambient light in flash shots
HDMI out
HDMI out vs None
Use HDMI output to monitor or review video
Lighter weight
295g vs 699g
Lighter weight
Faster JPEG shooting
16.0 fps vs 7.1 fps
Faster JPEG shooting (burst mode)
Faster RAW shooting
8.6 fps vs 7.0 fps
Faster RAW shooting in burst mode
Bigger RAW buffer
28 vs 10 shots
Larger buffer for RAW shots (burst mode)
Slow-motion videos
Yes vs No
Shoot slow-motion videos

Pentax KP advantages over Sony RX100 IV

Larger sensor
APS-C vs 1 inch
More sensor area. Bigger is (generally) better.
Bigger pixels
~ 3.91 vs 2.41 microns
Better low-light and dynamic range (all else equal)
High resolution composite
Yes vs No
Combine multiple shots to form a super hi-res version
Fast startup
~1.40 vs 2.1 sec
Faster startup lets you catch the moment
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

390 vs 280 shots
Capture more photos
External Mic Jack
Jack vs No jack
Improved sound fidelity when shooting video
Hot shoe
Hot shoe vs None
Off-camera flashes open new possibilities
More pixels
24.3 vs 20.1 megapixels
Higher resolution photos
Optional anti-aliasing filter
Optional vs Fixed
Lets you choose sharper photos or reduced moiré
Higher extended ISO
819200 vs 25600 ISO
Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

Rear display
Both provide
Review photos on the back of the camera
Focus peaking
Both provide
Your camera will highlight what's in focus
Eye-level viewfinder
Both provide
You'll be able to frame photos even when the sun is out
In-Camera Image Stabilization
Both provide
Reduces the effects of camera shake at slower shutter speeds
Tiltable Screen
Both provide
Tilt the screen for shooting flexbility
RAW file ability
Both provide
Gives you more flexibility to develop your photos later
Built-in Wi-Fi
Both provide
Share your photos wirelessly
Internal flash
Both provide
Useful in a pinch for fill flash
Manual focus
Both provide
AF is for the weak. Real photographers focus manually.
Bulb shutter
Both provide
Hold the shutter open manually for long exposures

Common Weaknesses

Tilt-swivel screen
Neither provide
Tilt and swivel the screen for maximum shooting flexibility
Touchscreen
Neither provide
Interact with your camera just like your smartphone
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
Headphone jack
Neither provide
Monitor audio recording while you shoot video

User reviews

Amazon
Adorama
Read KP User Reviews

Buy From

Your purchases support this site

Buy the Sony RX100 IV

Sony RX100 IV

All RX100 IV Deals

Your purchases support this site

Buy the Pentax KP

Body Only (Black)

Body Only (Black)
Body Only (Silver)

All KP Deals

Review Excerpt

Vastly improved burst speeds with deep buffer; Great performance with very fast autofocus; Very high resolution gives lots of detail in good light; High ISO noise levels much better than most pocket camera rivals; High-quality 4K video with uncompressed HDMI out; Super-fast High Frame Rate video; Same great pocket-friendly design.
Pricey for a compact camera; JPEGs can look over-processed at higher ISOs; Lens doesn't offer as much telephoto reach; Battery life not as good as predecessor; 24-70mm-equivalent lens can feel limiting.
Read our Sony RX100 IV Review

We haven’t finished our review of the Pentax KP, but we have extensive sample photos and a hands-on report.
Read our Pentax KP Shooter's Report

The Competition

Compared to Sony RX100 III

Sony RX100 IV

Sony RX100 III

$898
1 inch

Slower slow-motion
Shoot 4K video

$748
1 inch

Compare Sony RX100 IV vs Sony RX100 III

Pentax KP

Sony RX100 III

$999
APS-C

Larger sensor
Bigger pixels

$748
1 inch

Less expensive
In-camera panoramas

Compare Pentax KP vs Sony RX100 III

Compared to Sony RX100 V

Sony RX100 IV

Sony RX100 V

$898
1 inch

Longer stills battery life

$998
1 inch

On-sensor phase detect
Faster JPEG shooting

Compare Sony RX100 IV vs Sony RX100 V

Pentax KP

Sony RX100 V

$999
APS-C

Larger sensor
Bigger pixels

$998
1 inch

Shoot 4K video
In-camera panoramas

Compare Pentax KP vs Sony RX100 V

Compared to Nikon D5600

Sony RX100 IV

Nikon D5600

$898
1 inch

Focus peaking
In-Camera Image Stabilization

$898
APS-C

Tilt-swivel screen
Larger sensor

Compare Sony RX100 IV vs Nikon D5600

Pentax KP

Nikon D5600

$999
APS-C

Focus peaking
In-Camera Image Stabilization

$898
APS-C

Tilt-swivel screen
Touchscreen

Compare Pentax KP vs Nikon D5600

Compared to Canon T7i

Sony RX100 IV

Canon T7i

$898
1 inch

Focus peaking
In-Camera Image Stabilization

$700
APS-C

Larger sensor
Tilt-swivel screen

Compare Sony RX100 IV vs Canon T7i

Pentax KP

Canon T7i

$999
APS-C

Focus peaking
Larger sensor

$700
APS-C

Tilt-swivel screen
Touchscreen

Compare Pentax KP vs Canon T7i

Compared to Sony RX100 VA

Sony RX100 IV

Sony RX100 VA

$898
1 inch

Longer stills battery life

$998
1 inch

On-sensor phase detect
Newer

Compare Sony RX100 IV vs Sony RX100 VA

Pentax KP

Sony RX100 VA

$999
APS-C

Larger sensor
Bigger pixels

$998
1 inch

Shoot 4K video
In-camera panoramas

Compare Pentax KP vs Sony RX100 VA

Compare Other Cameras?