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Sony A7R III vs Sony TX20

Portability
63
Imaging
78
Features
93
Overall
84
Sony Alpha A7R III front
 
Sony Cyber-shot DSC-TX20 front
Portability
96
Imaging
39
Features
50
Overall
43

Sony A7R III vs Sony TX20 Key Specs

Sony A7R III
(Full Review)
  • 42MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Boost to 102400)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 657g - 127 x 96 x 74mm
  • Introduced October 2017
  • Superseded the Sony A7R II
  • Newer Model is Sony A7R IV
Sony TX20
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Display
  • ISO 125 - 3200
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 25-100mm (F3.5-4.6) lens
  • 133g - 96 x 56 x 18mm
  • Announced February 2012
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Sony A7R III vs Sony TX20 Overview

Following is a complete comparison of the Sony A7R III versus Sony TX20, former is a Pro Mirrorless while the other is a Ultracompact and they are both designed by Sony. There is a sizable difference between the sensor resolutions of the A7R III (42MP) and TX20 (16MP) and the A7R III (Full frame) and TX20 (1/2.3") enjoy different sensor sizing.

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The A7R III was introduced 5 years after the TX20 which is quite a significant difference as far as tech is concerned. Both cameras come with different body type with the Sony A7R III being a SLR-style mirrorless camera and the Sony TX20 being a Ultracompact camera.

Before diving through a thorough comparison, below is a simple view of how the A7R III matches up vs the TX20 in relation to portability, imaging, features and an overall score.

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Reasons to pick Sony A7R III over the Sony TX20

 A7R III TX20 
AnnouncedOctober 2017February 2012More modern by 69 months
Display typeTiltingFixed Tilting display
Display resolution1440k922kClearer display (+518k dot)

Reasons to pick Sony TX20 over the Sony A7R III

 TX20 A7R III 

Common features in the Sony A7R III and Sony TX20

 A7R III TX20 
Manual focus Very accurate focus
Display dimension3"3"Identical display measurement
Selfie screen Neither features selfie screen
Touch friendly display Easily navigate

Sony A7R III vs Sony TX20 Physical Comparison

For anybody who is going to carry around your camera frequently, you're going to have to consider its weight and proportions. The Sony A7R III enjoys outer dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 657 grams (1.45 lbs) while the Sony TX20 has measurements of 96mm x 56mm x 18mm (3.8" x 2.2" x 0.7") with a weight of 133 grams (0.29 lbs).

Analyze the Sony A7R III versus Sony TX20 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an ILC will change based on the lens you use at that time. Below is the front view over all size comparison of the A7R III compared to the TX20.

Sony A7R III vs Sony TX20 size comparison

Looking at size and weight, the portability rating of the A7R III and TX20 is 63 and 96 respectively.

Sony A7R III vs Sony TX20 top view buttons comparison

Sony A7R III vs Sony TX20 Sensor Comparison

In many cases, it is very difficult to visualize the difference between sensor sizes purely by checking a spec sheet. The pic underneath might provide you a much better sense of the sensor sizes in the A7R III and TX20.

As you can see, both of those cameras have got different resolutions and different sensor sizes. The A7R III with its larger sensor is going to make getting shallow DOF simpler and the Sony A7R III will give greater detail using its extra 26MP. Greater resolution will let you crop photos much more aggressively. The newer A7R III should have an edge with regard to sensor technology.

Sony A7R III vs Sony TX20 sensor size comparison

Sony A7R III vs Sony TX20 Screen and ViewFinder

Sony A7R III vs Sony TX20 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony A7R III Portrait photography details
Sony TX20 Portrait photography details
86
has manual focus
amazing megapixels (42 megapixels)
great sensor size (Full frame)
comes with face detection focus
delivers RAW formats
40
you can focus manually
MP count decent (16MP)
features face detect focus
no manual exposure
external flash not possible
small sensor (1/2.3")
has no RAW support
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Street Comparison

Sony A7R III Street photography features
Sony TX20 Street photography features
79
tilting screen
has image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
delivers RAW formats
supports focus by touch
environment sealing
very good high ISO (32,000)
67
has image stabilization (Optical)
features focus by touch
weather sealing
screen does not articulate
small sensor (1/2.3")
has no RAW support
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Sports Comparison

Sony A7R III Sports photography advice
Sony TX20 Sports photography advice
89
great max shutter speed (1/8,000 seconds)
has image stabilization (Sensor based 5-axis)
amazing megapixels (42 megapixels)
great sensor size (Full frame)
comes with tracking autofocus
environment sealing
good battery life (650 CIPA)
supports phase detect auto focus
50
has image stabilization (Optical)
MP count decent (16 megapixels)
features tracking focus
weather sealing
great battery (250 per charge)
no shutter priority mode
small sensor (1/2.3")
has no phase detect auto focus
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Travel Comparison

Sony A7R III Travel photography highlights
Sony TX20 Travel photography highlights
74
good battery life (650 shots)
environment sealing
connects via bluetooth
supports focus by touch
amazing megapixels (42 megapixels)
display is not selfie friendly
72
great battery (250 CIPA)
weather sealing
features focus by touch
MP count decent (16MP)
built-in flash
reasonably wide (25mm)
lack of Timelapse function
doesn't offer selfie friendly screen
somewhat slow max aperture (f3.5)
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Landscape Comparison

Sony A7R III Landscape photography advice
Sony TX20 Landscape photography advice
87
has manual focus
switch lenses (Sony E mount)
pretty good screen size (3")
has image stabilization (Sensor based 5-axis)
amazing megapixels (42MP)
great sensor size (Full frame)
doesnt have anti-alias filter
very good high ISO (32,000)
delivers RAW formats
environment sealing
good battery life (650 per charge)
has double storage slots
52
you can focus manually
reasonably wide (25mm)
nice screen size (3 inch)
has image stabilization (Optical)
MP count decent (16 megapixels)
weather sealing
great battery (250 shots)
lens is fixed (fixed lens mount)
somewhat slow max aperture (f3.5)
no manual exposure
small sensor (1/2.3")
has no RAW support
lack of Timelapse function
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Vlogging Comparison

Sony A7R III Vlogging info
Sony TX20 Vlogging info
37
built-in touchscreen
has image stabilization (Sensor based 5-axis)
comes with face detection focus
video res high (3840 x 2160 pixels)
comes with external microphone port
display is not selfie friendly
35
reasonably wide (25mm)
touchscreen enabled
has image stabilization (Optical)
features face detect focus
video resolution high (1920 x 1080 pxls)
somewhat slow max aperture (f3.5)
doesn't offer selfie friendly screen
lack of microphone socket
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Sony A7R III vs Sony TX20 Specifications

Detailed spec comparison table for Sony A7R III and Sony TX20
 Sony Alpha A7R IIISony Cyber-shot DSC-TX20
General Information
Company Sony Sony
Model type Sony Alpha A7R III Sony Cyber-shot DSC-TX20
Type Pro Mirrorless Ultracompact
Introduced 2017-10-25 2012-02-28
Physical type SLR-style mirrorless Ultracompact
Sensor Information
Processor Chip Bionz X BIONZ
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame 1/2.3"
Sensor measurements 35.9 x 24mm 6.17 x 4.55mm
Sensor surface area 861.6mm² 28.1mm²
Sensor resolution 42 megapixel 16 megapixel
Anti alias filter
Aspect ratio 3:2 and 16:9 4:3 and 16:9
Full resolution 7952 x 5304 4608 x 3456
Max native ISO 32000 3200
Max boosted ISO 102400 -
Min native ISO 100 125
RAW pictures
Min boosted ISO 50 -
Autofocusing
Focus manually
Touch focus
AF continuous
Single AF
Tracking AF
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 425 -
Cross type focus points - -
Lens
Lens support Sony E fixed lens
Lens zoom range - 25-100mm (4.0x)
Maximal aperture - f/3.5-4.6
Macro focusing distance - 1cm
Total lenses 121 -
Crop factor 1 5.8
Screen
Screen type Tilting Fixed Type
Screen size 3 inch 3 inch
Screen resolution 1,440k dots 922k dots
Selfie friendly
Liveview
Touch functionality
Screen tech - XtraFine TruBlack TFT LCD
Viewfinder Information
Viewfinder Electronic None
Viewfinder resolution 3,686k dots -
Viewfinder coverage 100 percent -
Viewfinder magnification 0.78x -
Features
Slowest shutter speed 30s 4s
Maximum shutter speed 1/8000s 1/1600s
Continuous shooting rate 10.0fps 10.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes -
Set WB
Image stabilization
Inbuilt flash
Flash distance no built-in flash 3.70 m
Flash settings Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync Auto, On, Off, Slow Sync
External flash
AE bracketing
WB bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p) 1920 x 1080 (60 fps), 1440 x 1080 (60, 30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps)
Max video resolution 3840x2160 1920x1080
Video format MPEG-4, AVCHD, XAVC S MPEG-4, AVCHD
Microphone port
Headphone port
Connectivity
Wireless Built-In Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1(5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 657 grams (1.45 lbs) 133 grams (0.29 lbs)
Dimensions 127 x 96 x 74mm (5.0" x 3.8" x 2.9") 96 x 56 x 18mm (3.8" x 2.2" x 0.7")
DXO scores
DXO All around rating 100 not tested
DXO Color Depth rating 26.0 not tested
DXO Dynamic range rating 14.7 not tested
DXO Low light rating 3523 not tested
Other
Battery life 650 images 250 images
Battery type Battery Pack Battery Pack
Battery ID NP-FZ100 NP-BN
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes (2 or 10 sec, Portrait 1/2)
Time lapse shooting
Type of storage Two SD/SDHC/SDXC slots (UHS-II support on one) SD/SDHC/SDXC/Memory Stick Duo/Memory Stick Pro Duo, Memory Stick Pro-HG Duo
Card slots 2 One
Price at launch $2,800 $330