Sony RX10 vs Pentax K-3 III

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Sony RX10 vs Pentax K-3 III

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

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

APS-C 361.2mm²
25.7 megapixels
ISO 100 - 1,600,000

Go in depth with our full Pentax K-3 III Review.
See real-world photos taken with the K-3 III.

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Differences

Sony RX10 advantages over Pentax K-3 III

Less expensive
$698* vs $2344
Save money for lenses or accessories
In-camera panoramas
Yes vs No
Stitches multiple shots into a panoramic photo
Tiltable Screen
Tiltable vs Fixed
Tilt the screen for shooting flexbility
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 1/200 sec
Reduce the effect of ambient light in flash shots

Pentax K-3 III advantages over Sony RX10

Larger sensor
APS-C vs 1 inch
More sensor area. Bigger is (generally) better.
Bigger pixels
~ 3.76 vs 2.41 microns
Better low-light and dynamic range (all else equal)
Shoot 4K video
4K (UHD) vs 1080p
Make sure you have a fast computer
Touchscreen
Touch vs No touch
Interact with your camera just like your smartphone
High resolution composite
Yes vs No
Combine multiple shots to form a super hi-res version
Built-in Bluetooth
Yes vs No
Always-on wireless connectivity
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

800 vs 420 shots
Capture more photos
Thinner
73 mm vs 102 mm
Thinner
Newer
4 years vs 11 years old
Newer cameras often support more advanced features
Higher-res screen
540k vs 307k pixels
More detail on the screen lets you judge focus and composition
More viewfinder magnification
1.05x vs 0.70x
Get a bigger view of the scene through the eye-level viewfinder
More pixels
25.7 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
Faster JPEG shooting
12.0 fps vs 10.0 fps
Faster JPEG shooting (burst mode)
Faster shutter
1/8000 vs 1/3200 sec
Shoot wide open in bright light
Higher extended ISO
1600000 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
RAW file ability
Both provide
Gives you more flexibility to develop your photos later
Built-in Wi-Fi
Both provide
Share your photos wirelessly
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
Built-in GPS
Neither provide
Geotag your photos
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

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Adorama
Read RX10 User Reviews

Amazon
Adorama
Read K-3 III User Reviews

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Sony RX10

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Buy the Pentax K-3 III

Body Only

Body Only
Kit with 20-40mm F2.8-4 Lens
Kit with 55-300mm f/4.5-6.3 Lens

All K-3 III Deals

Review Excerpt

Smaller than SLR/CSC with comparable lenses; Larger sensor than other bridge cameras; SLR-like body without the hassle of changing lenses; Weather-sealed; Constant f/2.8 maximum aperture; Generous zoom range; Great viewfinder; Swift performance; Plenty of enthusiast-friendly features including raw shooting; Wi-Fi and NFC wireless sharing.
Expensive compared to other bridge cameras; Menus respond slowly after burst shooting; Lens doesn't zoom very quickly; High ISO performance doesn't quite match RX100 II.
Read our Sony RX10 Review

We haven’t finished our review of the Pentax K-3 III, but we have extensive sample photos and a hands-on report.
See our Pentax K-3 III First Shots

The Competition

Compared to Panasonic FZ1000

Sony RX10

Panasonic FZ1000

$698
1 inch

Top deck display
Integrated ND filter

$773
1 inch

Tilt-swivel screen
Shoot 4K video

Compare Sony RX10 vs Panasonic FZ1000

Pentax K-3 III

Panasonic FZ1000

$1847
APS-C

Larger sensor
Bigger pixels

$773
1 inch

Less expensive
Tilt-swivel screen

Compare Pentax K-3 III vs Panasonic FZ1000

Compared to Leica V-LUX (Typ 114)

Sony RX10

Leica V-LUX (Typ 114)

$698
1 inch

Less expensive
Integrated ND filter

$899
1 inch

Shoot 4K video
More telephoto lens reach

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

Pentax K-3 III

Leica V-LUX (Typ 114)

$1847
APS-C

Larger sensor
Bigger pixels

$899
1 inch

Less expensive
In-camera panoramas

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

Compared to Sony RX10 II

Sony RX10

Sony RX10 II

$698
1 inch

Less expensive

$998
1 inch

Shoot 4K video
Higher effective ISO

Compare Sony RX10 vs Sony RX10 II

Pentax K-3 III

Sony RX10 II

$1847
APS-C

Larger sensor
Bigger pixels

$998
1 inch

Less expensive
In-camera panoramas

Compare Pentax K-3 III vs Sony RX10 II

Compared to Pentax KP

Sony RX10

Pentax KP

$698
1 inch

Less expensive
In-camera panoramas

$999
APS-C

Larger sensor
Bigger pixels

Compare Sony RX10 vs Pentax KP

Pentax K-3 III

Pentax KP

$1847
APS-C

Shoot 4K video
Touchscreen

$999
APS-C

Less expensive
Tiltable Screen

Compare Pentax K-3 III vs Pentax KP

Compared to Canon 90D

Sony RX10

Canon 90D

$698
1 inch

Less expensive
Focus peaking

$1099
APS-C

Tilt-swivel screen
Larger sensor

Compare Sony RX10 vs Canon 90D

Pentax K-3 III

Canon 90D

$1847
APS-C

Focus peaking
In-Camera Image Stabilization

$1099
APS-C

Less expensive
Tilt-swivel screen

Compare Pentax K-3 III vs Canon 90D

Compare Other Cameras?