Pentax K-3 II vs Sony RX10 II

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Pentax K-3 II vs Sony RX10 II

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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.

1 inch 116.2mm²
20.2 megapixels
24.00mm - 200.00mm (35mm eq.)

Go in depth with our full Sony RX10 II Review.
How does it shoot? Sony RX10 II in the real world.
See real-world photos taken with the RX10 II.
Compare Sony RX10 II image quality against competitors.
What’s the bottom line? Read our Sony RX10 II conclusion.

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Differences

Pentax K-3 II advantages over Sony RX10 II

Larger sensor
APS-C vs 1 inch
More sensor area. Bigger is (generally) better.
Less expensive
$830 vs $998
Save money for lenses or accessories
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
~1.20 vs 1.7 sec
Faster startup lets you catch the moment
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 RX10 II test data on DxO Mark

1,106 vs 531 iso
Take photos in low light with less noise
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 400 shots
Capture more photos
Thinner
77 mm vs 102 mm
Thinner
More pixels
24.4 vs 20.2 megapixels
Higher resolution photos
Dual card slots
Yes vs No
Gives you more storage flexibility
Optional anti-aliasing filter
Optional vs Fixed
Lets you choose sharper photos or reduced moiré
Higher extended ISO
51200 vs 25600 ISO
Higher extended ISO can give more low-light flexibility

Sony RX10 II advantages over Pentax K-3 II

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
Tiltable Screen
Tiltable vs Fixed
Tilt the screen for shooting flexbility
Built-in Wi-Fi
Wi-Fi vs None
Share your photos wirelessly
NFC
Yes vs No
Simplifies pairing your camera with supported phones
Internal flash
Internal flash vs None
Useful in a pinch for fill flash
Integrated ND filter
Yes vs No
Shoot in daylight with a large aperture or slow shutter
Higher max flash sync
1/3200 vs 1/180 sec
Reduce the effect of ambient light in flash shots
More viewfinder magnification
0.70x vs 0.63x
Get a bigger view of the scene through the eye-level viewfinder
Faster JPEG shooting
14.2 fps vs 8.1 fps
Faster JPEG shooting (burst mode)
Slow-motion videos
Yes vs No
Shoot slow-motion videos
Faster shutter
1/32000 vs 1/8000 sec
Shoot wide open in bright light

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
RAW file ability
Both provide
Gives you more flexibility to develop your photos later
Manual focus
Both provide
AF is for the weak. Real photographers focus manually.
Top deck display
Both provide
Check settings with a screen on top of the camera
External Mic Jack
Both provide
Improved sound fidelity when shooting video
HDMI out
Both provide
Use HDMI output to monitor or review video
Hot shoe
Both provide
Off-camera flashes open new possibilities
Headphone jack
Both provide
Monitor audio recording while you shoot video
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
On-sensor phase detect
Neither provide
Usually improves live view and video AF performance

User reviews

Amazon
Adorama
Read K-3 II User Reviews

Amazon
Adorama
Read RX10 II User Reviews

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Sony RX10 II

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Review Excerpt

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

Excellent build quality; Superb viewfinder; Excellent image and video quality for its class; Bright and versatile zoom lens; Very fast autofocus; Great burst performance and depth; Incredible slow-motion capabilities; Really intuitive Wi-Fi image transfer; Good battery life.
Expensive compared to its nearest competitors; Less zoom reach than rivals; Soft in corners wide-open; Slow buffer clearing; Small rear control dial has poor tactile feedback; Long delay to render each high frame-rate movie; No tilt/swivel or touch on the LCD panel.
Read our Sony RX10 II Review

The Competition

Compared to Sony RX10

Pentax K-3 II

Sony RX10

$830
APS-C

Larger sensor
Bigger pixels

$698
1 inch

Less expensive
In-camera panoramas

Compare Pentax K-3 II vs Sony RX10

Sony RX10 II

Sony RX10

$998
1 inch

Shoot 4K video
Higher effective ISO

$698
1 inch

Less expensive

Compare Sony RX10 II vs Sony RX10

Compared to Leica V-LUX (Typ 114)

Pentax K-3 II

Leica V-LUX (Typ 114)

$830
APS-C

Larger sensor
Bigger pixels

$899
1 inch

Shoot 4K video
In-camera panoramas

Compare Pentax K-3 II vs Leica V-LUX (Typ 114)

Sony RX10 II

Leica V-LUX (Typ 114)

$998
1 inch

Slower slow-motion
Integrated ND filter

$899
1 inch

More telephoto lens reach
Longer exposure

Compare Sony RX10 II vs Leica V-LUX (Typ 114)

Compared to 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

Sony RX10 II

Canon T6i

$998
1 inch

Focus peaking
In-Camera Image Stabilization

$699
APS-C

Larger sensor
Less expensive

Compare Sony RX10 II vs Canon T6i

Compared to 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

Sony RX10 II

Pentax KP

$998
1 inch

Shoot 4K video
In-camera panoramas

$999
APS-C

Larger sensor
Bigger pixels

Compare Sony RX10 II vs Pentax KP

Compared to Canon T7i

Pentax K-3 II

Canon T7i

$830
APS-C

Focus peaking
Larger sensor

$700
APS-C

Tilt-swivel screen
Touchscreen

Compare Pentax K-3 II vs Canon T7i

Sony RX10 II

Canon T7i

$998
1 inch

Focus peaking
In-Camera Image Stabilization

$700
APS-C

Larger sensor
Tilt-swivel screen

Compare Sony RX10 II vs Canon T7i

Compare Other Cameras?