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Pentax X70 vs Sony A7S III

Portability
71
Imaging
35
Features
34
Overall
34
Pentax X70 front
 
Sony Alpha A7S III front
Portability
61
Imaging
65
Features
92
Overall
75

Pentax X70 vs Sony A7S III Key Specs

Pentax X70
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 50 - 6400
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 26-624mm (F2.8-5.0) lens
  • 410g - 110 x 83 x 90mm
  • Announced March 2009
Sony A7S III
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Fully Articulated Display
  • ISO 80 - 102400 (Boost to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 699g - 129 x 97 x 81mm
  • Introduced July 2020
  • Older Model is Sony A7S II
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Pentax X70 vs Sony A7S III Overview

Let's look more closely at the Pentax X70 vs Sony A7S III, former being a Small Sensor Superzoom while the other is a Pro Mirrorless by brands Pentax and Sony. The image resolution of the X70 (12MP) and the A7S III (12MP) is very similar but the X70 (1/2.3") and A7S III (Full frame) posses totally different sensor sizing.

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The X70 was unveiled 12 years before the A7S III and that is quite a big difference as far as tech is concerned. Each of these cameras have different body design with the Pentax X70 being a SLR-like (bridge) camera and the Sony A7S III being a SLR-style mirrorless camera.

Before getting right into a thorough comparison, here is a brief summation of how the X70 scores against the A7S III for portability, imaging, features and an overall rating.

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Reasons to pick Pentax X70 over the Sony A7S III

 X70 A7S III 

Reasons to pick Sony A7S III over the Pentax X70

 A7S III X70 
IntroducedJuly 2020March 2009Fresher by 138 months
Display typeFully articulatedFixed Fully Articulating display
Display dimensions3"2.7"Larger display (+0.3")
Display resolution1440k230kClearer display (+1210k dot)
Selfie screen Take selfies
Touch friendly display Easily navigate

Common features in the Pentax X70 and Sony A7S III

 X70 A7S III 
Focus manually Dial accurate focus

Pentax X70 vs Sony A7S III Physical Comparison

If you're going to carry your camera often, you need to factor in its weight and size. The Pentax X70 has got outside measurements of 110mm x 83mm x 90mm (4.3" x 3.3" x 3.5") and a weight of 410 grams (0.90 lbs) while the Sony A7S III has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") with a weight of 699 grams (1.54 lbs).

Check out the Pentax X70 vs Sony A7S III in our brand new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will change depending on the lens you are using at the time. Here is a front view physical size comparison of the X70 against the A7S III.

Pentax X70 vs Sony A7S III size comparison

Using size and weight, the portability grade of the X70 and A7S III is 71 and 61 respectively.

Pentax X70 vs Sony A7S III top view buttons comparison

Pentax X70 vs Sony A7S III Sensor Comparison

Oftentimes, it's difficult to envision the contrast between sensor sizing just by going over specs. The graphic below might give you a more clear sense of the sensor measurements in the X70 and A7S III.

All in all, both of those cameras have the same MP but not the same sensor sizing. The X70 includes the tinier sensor which should make obtaining shallow depth of field more challenging. The older X70 is going to be disadvantaged with regard to sensor technology.

Pentax X70 vs Sony A7S III sensor size comparison

Pentax X70 vs Sony A7S III Screen and ViewFinder

Pentax X70 vs Sony A7S III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax X70 Portrait photography features
Sony A7S III Portrait photography features
29
focusing manually
cannot use external flash
megapixel count low (12MP)
very small sensor (1/2.3")
no RAW support
71
has manual focus
sensor size is big (Full frame)
features face detection focus
saves RAW files
low megapixels (12 megapixels)
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Street Comparison

Pentax X70 Street photography factors
Sony A7S III Street photography factors
46
image stabilization (Sensor-shift)
fixed screen
very small sensor (1/2.3")
no RAW support
76
built in image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
saves RAW files
provides focus via touch
environment sealing
good high ISO (102,400)
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Sports Comparison

Pentax X70 Sports photography advice
Sony A7S III Sports photography advice
50
excellent zoom range (26-624mm 24.0 x zoom)
image stabilization (Sensor-shift)
features tracking autofocus
supports phase detect autofocus
megapixel count low (12MP)
very small sensor (1/2.3")
76
maximum shutter speed is high (1/8,000 seconds)
built in image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
features tracking autofocus
environment sealing
good battery (600 shots)
comes with phase detect auto focus
low megapixels (12 megapixels)
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Travel Comparison

Travel photography with Pentax X70
Travel photography with Sony A7S III
52
built-in flash
pretty wide (26mm)
long reach (624mm)
doesn't have Time Lapse mode
megapixel count low (12 megapixels)
screen is not selfie friendly
sluggish max aperture (f2.8)
70
good battery (600 per charge)
environment sealing
connects via bluetooth
provides focus via touch
display is selfie friendly
low megapixels (12MP)
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Landscape Comparison

Landscape photography with Pentax X70
Landscape photography with Sony A7S III
36
focusing manually
pretty wide (26mm)
image stabilization (Sensor-shift)
fixed lens (fixed lens mount)
sluggish max aperture (f2.8)
screen is somewhat small (2.7 inch)
megapixel count low (12MP)
very small sensor (1/2.3")
no RAW support
doesn't have Time Lapse mode
77
has manual focus
swap lenses (Sony E mount)
pretty good screen size (3 inches)
built in image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
good high ISO (102,400)
saves RAW files
environment sealing
good battery (600 shots)
has dual storage slots
low megapixels (12MP)
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Vlogging Comparison

Pentax X70 as a Vlogging camera
Sony A7S III as a Vlogging camera
24
pretty wide (26mm)
image stabilization (Sensor-shift)
sluggish max aperture (f2.8)
screen is not selfie friendly
video res low (1280 x 720 pxls)
doesn't have external mic socket
77
display is selfie friendly
touchscreen
built in image stabilization (Sensor based 5-axis)
features face detection focus
video res high (3840 x 2160 pxls)
does have external mic jack
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Pentax X70 vs Sony A7S III Specifications

Detailed spec comparison table for Pentax X70 and Sony A7S III
 Pentax X70Sony Alpha A7S III
General Information
Company Pentax Sony
Model Pentax X70 Sony Alpha A7S III
Class Small Sensor Superzoom Pro Mirrorless
Announced 2009-03-02 2020-07-21
Body design SLR-like (bridge) SLR-style mirrorless
Sensor Information
Chip - Bionz XR
Sensor type CCD BSI-CMOS
Sensor size 1/2.3" Full frame
Sensor dimensions 6.17 x 4.55mm 35.6 x 23.8mm
Sensor surface area 28.1mm² 847.3mm²
Sensor resolution 12 megapixels 12 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest resolution 4000 x 3000 4240 x 2832
Highest native ISO 6400 102400
Highest boosted ISO - 409600
Minimum native ISO 50 80
RAW files
Minimum boosted ISO - 50
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 9 759
Lens
Lens mount fixed lens Sony E
Lens focal range 26-624mm (24.0x) -
Largest aperture f/2.8-5.0 -
Macro focus range 10cm -
Amount of lenses - 121
Focal length multiplier 5.8 1
Screen
Range of screen Fixed Type Fully articulated
Screen sizing 2.7" 3"
Screen resolution 230 thousand dot 1,440 thousand dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution - 9,440 thousand dot
Viewfinder coverage - 100%
Viewfinder magnification - 0.91x
Features
Slowest shutter speed 4 secs 30 secs
Maximum shutter speed 1/4000 secs 1/8000 secs
Continuous shooting speed - 10.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash range 9.10 m no built-in flash
Flash modes - no built-in flash
Hot shoe
AEB
White balance bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1280 x 720 (30 fps), 848 x 480 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps) 3840 x 2160 @ 120p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 100p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 60p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 50p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 30p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 25p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 24p / 100 Mbps, XAVC S, MP4, H.265, Linear PCM 1920 x 1080 @ 120p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 100p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 60p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 50p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 25p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 24p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM
Highest video resolution 1280x720 3840x2160
Video format Motion JPEG MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265
Mic input
Headphone input
Connectivity
Wireless None Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.2 Gen 1 (5 GBit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 410 grams (0.90 lb) 699 grams (1.54 lb)
Physical dimensions 110 x 83 x 90mm (4.3" x 3.3" x 3.5") 129 x 97 x 81mm (5.1" x 3.8" x 3.2")
DXO scores
DXO All around score not tested 85
DXO Color Depth score not tested 23.6
DXO Dynamic range score not tested 13.3
DXO Low light score not tested 2993
Other
Battery life - 600 photos
Battery format - Battery Pack
Battery model D-LI92 NP-FZ100
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse recording With downloadable app
Storage media SD/SDHC, Internal Dual SD/CFexpress Type A slots
Storage slots Single 2
Launch cost $200 $3,499