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Pentax K-70 vs Sony RX100 IV

Portability
62
Imaging
67
Features
81
Overall
72
Pentax K-70 front
 
Sony Cyber-shot DSC-RX100 IV front
Portability
89
Imaging
52
Features
79
Overall
62

Pentax K-70 vs Sony RX100 IV Key Specs

Pentax K-70
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 102400
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/6000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 688g - 126 x 93 x 74mm
  • Introduced June 2016
  • Replacement is Pentax KF
Sony RX100 IV
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Screen
  • ISO 125 - 12800 (Increase to 25600)
  • Optical Image Stabilization
  • 3840 x 2160 video
  • 24-70mm (F1.8-2.8) lens
  • 298g - 102 x 58 x 41mm
  • Announced June 2015
  • Earlier Model is Sony RX100 III
  • Replacement is Sony RX100 V
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Pentax K-70 vs Sony RX100 IV Overview

Its time to look more closely at the Pentax K-70 versus Sony RX100 IV, former being a Entry-Level DSLR while the latter is a Large Sensor Compact by manufacturers Pentax and Sony. The sensor resolution of the K-70 (24MP) and the RX100 IV (20MP) is pretty similar but the K-70 (APS-C) and RX100 IV (1") provide totally different sensor measurements.

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The K-70 was introduced 13 months later than the RX100 IV which makes them a generation apart from each other. Both of the cameras feature different body design with the Pentax K-70 being a Compact SLR camera and the Sony RX100 IV being a Large Sensor Compact camera.

Before going right into a more detailed comparison, here is a quick view of how the K-70 grades against the RX100 IV in the way of portability, imaging, features and an overall grade.

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Reasons to pick Pentax K-70 over the Sony RX100 IV

 K-70 RX100 IV 
AnnouncedJune 2016June 2015More recent by 13 months
Screen typeFully ArticulatedTiltingFully Articulating screen

Reasons to pick Sony RX100 IV over the Pentax K-70

 RX100 IV K-70 
Screen resolution1229k921kCrisper screen (+308k dot)

Common features in the Pentax K-70 and Sony RX100 IV

 K-70 RX100 IV 
Focus manually More exact focus
Screen size3"3"Same screen measurements
Selfie screen Both good for selfies
Touch screen Neither offers Touch screen

Pentax K-70 vs Sony RX100 IV Physical Comparison

In case you're planning to lug around your camera often, you'll need to factor in its weight and size. The Pentax K-70 offers external measurements of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") having a weight of 688 grams (1.52 lbs) and the Sony RX100 IV has specifications of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") having a weight of 298 grams (0.66 lbs).

Check the Pentax K-70 versus Sony RX100 IV in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will vary dependant on the lens you have chosen at the time. Following is a front view dimension comparison of the K-70 versus the RX100 IV.

Pentax K-70 vs Sony RX100 IV size comparison

Considering size and weight, the portability grade of the K-70 and RX100 IV is 62 and 89 respectively.

Pentax K-70 vs Sony RX100 IV top view buttons comparison

Pentax K-70 vs Sony RX100 IV Sensor Comparison

Usually, it can be hard to envision the gap between sensor measurements only by going over specifications. The visual underneath might provide you a clearer sense of the sensor measurements in the K-70 and RX100 IV.

To sum up, both of these cameras feature different resolutions and different sensor measurements. The K-70 with its bigger sensor will make achieving shallow DOF simpler and the Pentax K-70 will deliver more detail using its extra 4 Megapixels. Higher resolution can also make it easier to crop shots way more aggressively. The younger K-70 will have a benefit in sensor tech.

Pentax K-70 vs Sony RX100 IV sensor size comparison

Pentax K-70 vs Sony RX100 IV Screen and ViewFinder

Pentax K-70 vs Sony RX100 IV Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-70 Portrait photography features
Sony RX100 IV Portrait photography features
80
you can focus manually
megapixel count decent (24 megapixels)
nice sensor size (APS-C)
supports face detect focusing
exports RAW files
65
has manual focus
above average flash sync speed (1/2,000s)
good MP (20 megapixels)
sensor size is good (1")
has face detection focus
saves RAW formats
external flash not possible
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Street Comparison

Pentax K-70 Street photography highlights
Sony RX100 IV Street photography highlights
71
screen can move to multiple angles
built in image stabilization (Sensor based)
nice sensor size (APS-C)
exports RAW files
weather proofing
above average high ISO (102,400)
more heavy than competition (688g)
85
screen tilts
image stabilization (Optical)
sensor size is good (1")
saves RAW formats
lighter than others in class (298 grams)
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Sports Comparison

Pentax K-70 Sports photography highlights
Sony RX100 IV Sports photography highlights
72
high shutter speed (1/6,000s)
built in image stabilization (Sensor based)
megapixel count decent (24 megapixels)
nice sensor size (APS-C)
supports tracking focus
weather proofing
comes with phase detect AF
continuous shooting slow (6.0 frames per second)
terrible battery power (410 per charge)
68
quiet shutter (1/32,000s)
high max frames per second (16.0 fps)
image stabilization (Optical)
good MP (20 megapixels)
sensor size is good (1")
has tracking autofocus
does not have phase detect auto focus
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Travel Comparison

Travel photography with Pentax K-70
Travel photography with Sony RX100 IV
64
weather proofing
megapixel count decent (24MP)
built-in flash
screen is selfie friendly
terrible battery power (410 per charge)
more heavy than competition (688 grams)
86
lighter than others in class (298g)
good MP (20MP)
flash built-in
display is selfie friendly
quite wide (24mm)
very good max aperture (f1.8)
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Landscape Comparison

Pentax K-70 Landscape photography advice
Sony RX100 IV Landscape photography advice
78
you can focus manually
swap lenses (Pentax KAF2 mount)
nice screen size (3 inch)
built in image stabilization (Sensor based)
megapixel count decent (24MP)
nice sensor size (APS-C)
no anti-alias filter
above average high ISO (102,400)
exports RAW files
weather proofing
terrible battery power (410 CIPA)
74
has manual focus
quite wide (24mm)
very good max aperture (f1.8)
good sized screen (3")
image stabilization (Optical)
good MP (20MP)
sensor size is good (1")
saves RAW formats
can't switch lens (fixed lens mount)
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Vlogging Comparison

Pentax K-70 Vlogging info
Sony RX100 IV Vlogging info
71
screen is selfie friendly
built in image stabilization (Sensor based)
supports face detect focusing
video res high (1920 x 1080 pixels)
does have microphone socket
more heavy than competition (688g)
81
quite wide (24mm)
very good max aperture (f1.8)
display is selfie friendly
image stabilization (Optical)
has face detection focus
high video quality (3840 x 2160 pxls)
lighter than others in class (298g)
does not have external mic port
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Pentax K-70 vs Sony RX100 IV Specifications

Detailed spec comparison table for Pentax K-70 and Sony RX100 IV
 Pentax K-70Sony Cyber-shot DSC-RX100 IV
General Information
Brand Name Pentax Sony
Model type Pentax K-70 Sony Cyber-shot DSC-RX100 IV
Type Entry-Level DSLR Large Sensor Compact
Introduced 2016-06-08 2015-06-10
Body design Compact SLR Large Sensor Compact
Sensor Information
Powered by PRIME MII Bionz X
Sensor type CMOS BSI-CMOS
Sensor size APS-C 1"
Sensor dimensions 23.5 x 15.6mm 13.2 x 8.8mm
Sensor area 366.6mm² 116.2mm²
Sensor resolution 24 megapixels 20 megapixels
Anti alias filter
Aspect ratio 3:2 1:1, 4:3, 3:2 and 16:9
Highest resolution 6000 x 4000 5472 x 3648
Highest native ISO 102400 12800
Highest boosted ISO - 25600
Minimum native ISO 100 125
RAW files
Minimum boosted ISO - 80
Autofocusing
Manual focusing
Autofocus touch
Autofocus continuous
Autofocus single
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detect focus
Contract detect focus
Phase detect focus
Total focus points 11 25
Cross type focus points 9 -
Lens
Lens mount type Pentax KAF2 fixed lens
Lens zoom range - 24-70mm (2.9x)
Largest aperture - f/1.8-2.8
Macro focusing distance - 5cm
Number of lenses 151 -
Crop factor 1.5 2.7
Screen
Display type Fully Articulated Tilting
Display diagonal 3" 3"
Resolution of display 921k dot 1,229k dot
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder type Optical (pentaprism) Electronic
Viewfinder resolution - 2,359k dot
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.63x 0.59x
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/6000 seconds 1/2000 seconds
Maximum quiet shutter speed - 1/32000 seconds
Continuous shooting speed 6.0fps 16.0fps
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Built-in flash
Flash distance 12.00 m (at ISO 100) -
Flash options Auto, auto w/redeye reduction, flash on, flash + redeye reduction, slow sync, trailing curtain sync, manual -
Hot shoe
AE bracketing
White balance bracketing
Maximum flash sync - 1/2000 seconds
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p/60i/24p), 1280 x 720 (60p/30p/24p/120p), 1440 x 1080 (30 fps), 640 x 480 (30 fps)
Highest video resolution 1920x1080 3840x2160
Video data format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S
Mic jack
Headphone jack
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 688 grams (1.52 lbs) 298 grams (0.66 lbs)
Physical dimensions 126 x 93 x 74mm (5.0" x 3.7" x 2.9") 102 x 58 x 41mm (4.0" x 2.3" x 1.6")
DXO scores
DXO All around rating not tested 70
DXO Color Depth rating not tested 22.9
DXO Dynamic range rating not tested 12.6
DXO Low light rating not tested 562
Other
Battery life 410 photos 280 photos
Form of battery Battery Pack Battery Pack
Battery ID - NP-BX1
Self timer Yes (2 or 12 secs, continuous) Yes
Time lapse shooting With downloadable app
Storage media SD/SDHC/SDXC (UHS-I compatible) SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Storage slots Single Single
Pricing at launch $649 $898