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Samsung GX-20 vs Sony TX55

Portability
58
Imaging
53
Features
52
Overall
52
Samsung GX-20 front
 
Sony Cyber-shot DSC-TX55 front
Portability
97
Imaging
39
Features
46
Overall
41

Samsung GX-20 vs Sony TX55 Key Specs

Samsung GX-20
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200 (Bump to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 72mm
  • Introduced January 2008
  • Previous Model is Samsung GX-10
Sony TX55
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3.3" Fixed Display
  • ISO 100 - 3200
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 26-130mm (F3.5-4.8) lens
  • 109g - 93 x 54 x 13mm
  • Launched July 2011
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Samsung GX-20 vs Sony TX55 Overview

Lets look a little more closely at the Samsung GX-20 vs Sony TX55, former is a Advanced DSLR while the other is a Ultracompact by brands Samsung and Sony. The image resolution of the GX-20 (15MP) and the TX55 (16MP) is very similar but the GX-20 (APS-C) and TX55 (1/2.3") boast different sensor dimensions.

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The GX-20 was brought out 4 years prior to the TX55 which is quite a big difference as far as technology is concerned. Both cameras have different body design with the Samsung GX-20 being a Mid-size SLR camera and the Sony TX55 being a Ultracompact camera.

Before delving right into a complete comparison, here is a concise summary of how the GX-20 scores against the TX55 for portability, imaging, features and an overall score.

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Reasons to pick Samsung GX-20 over the Sony TX55

 GX-20 TX55 

Reasons to pick Sony TX55 over the Samsung GX-20

 TX55 GX-20 
LaunchedJuly 2011January 2008More modern by 42 months
Display dimensions3.3"2.7"Larger display (+0.6")
Display resolution1230k230kSharper display (+1000k dot)
Touch display Easily navigate

Common features in the Samsung GX-20 and Sony TX55

 GX-20 TX55 
Manually focus Very exact focusing
Display typeFixed Fixed Fixed display
Selfie screen No selfie screen

Samsung GX-20 vs Sony TX55 Physical Comparison

For anyone who is going to carry around your camera often, you need to take into account its weight and size. The Samsung GX-20 features external measurements of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") accompanied by a weight of 800 grams (1.76 lbs) and the Sony TX55 has specifications of 93mm x 54mm x 13mm (3.7" x 2.1" x 0.5") with a weight of 109 grams (0.24 lbs).

Look at the Samsung GX-20 vs Sony TX55 in our brand new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will change based on the lens you have attached at the time. The following is a front view over all size comparison of the GX-20 versus the TX55.

Samsung GX-20 vs Sony TX55 size comparison

Considering dimensions and weight, the portability rating of the GX-20 and TX55 is 58 and 97 respectively.

Samsung GX-20 vs Sony TX55 top view buttons comparison

Samsung GX-20 vs Sony TX55 Sensor Comparison

More often than not, its hard to picture the difference between sensor sizes just by reviewing technical specs. The pic below will give you a far better sense of the sensor sizing in the GX-20 and TX55.

As you can tell, both cameras have different megapixels and different sensor sizes. The GX-20 featuring a larger sensor is going to make getting shallower DOF less difficult and the Sony TX55 will offer you more detail having its extra 1MP. Greater resolution will make it easier to crop pics a bit more aggressively. The more aged GX-20 is going to be behind when it comes to sensor innovation.

Samsung GX-20 vs Sony TX55 sensor size comparison

Samsung GX-20 vs Sony TX55 Screen and ViewFinder

Samsung GX-20 vs Sony TX55 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Samsung GX-20 Portrait photography factors
Sony TX55 Portrait photography factors
71
you can focus manually
decent megapixels (15MP)
nice sensor size (APS-C)
delivers RAW formats
36
you can focus manually
decent megapixels (16MP)
lack of manual mode
can't use external flash
sensor is tiny (1/2.3")
lack of RAW format
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Street Comparison

Samsung GX-20 Street photography factors
Sony TX55 Street photography factors
65
has image stabilization (Sensor based)
nice sensor size (APS-C)
delivers RAW formats
environment sealing
screen does not articulate
58
has image stabilization (Optical)
screen is fixed
sensor is tiny (1/2.3")
lack of RAW format
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Sports Comparison

Samsung GX-20 Sports photography info
Sony TX55 Sports photography info
68
has image stabilization (Sensor based)
decent megapixels (15MP)
nice sensor size (APS-C)
environment sealing
supports phase detect auto focus
painfully slow continuous shooting (3.0 frames per second)
44
has image stabilization (Optical)
decent megapixels (16 megapixels)
better than average battery life (250 CIPA)
no shutter priority mode
sensor is tiny (1/2.3")
lack of phase detect AF
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Travel Comparison

Samsung GX-20 Travel photography info
Sony TX55 Travel photography info
63
environment sealing
decent megapixels (15MP)
flash built-in
screen is not selfie friendly
69
better than average battery life (250 per charge)
decent megapixels (16MP)
built-in flash
pretty wide (26mm)
missing Timelapse function
does not offer selfie friendly screen
sluggish maximum aperture (f3.5)
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Landscape Comparison

Samsung GX-20 Landscape photography features
Sony TX55 Landscape photography features
70
you can focus manually
swap lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
decent megapixels (15MP)
nice sensor size (APS-C)
delivers RAW formats
environment sealing
screen is somewhat small (2.7 inches)
50
you can focus manually
pretty wide (26mm)
screen size is decent (3.3 inch)
has image stabilization (Optical)
decent megapixels (16MP)
better than average battery life (250 CIPA)
fixed lens (fixed lens mount)
sluggish maximum aperture (f3.5)
lack of manual mode
sensor is tiny (1/2.3")
lack of RAW format
missing Timelapse function
Photography Glossary

Vlogging Comparison

Vlogging with Samsung GX-20
Vlogging with Sony TX55
9
can't record video
34
pretty wide (26mm)
touchscreen
has image stabilization (Optical)
good video quality (1920 x 1080 pxls)
sluggish maximum aperture (f3.5)
does not offer selfie friendly screen
missing external microphone socket
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Samsung GX-20 vs Sony TX55 Specifications

Detailed spec comparison table for Samsung GX-20 and Sony TX55
 Samsung GX-20Sony Cyber-shot DSC-TX55
General Information
Make Samsung Sony
Model Samsung GX-20 Sony Cyber-shot DSC-TX55
Class Advanced DSLR Ultracompact
Introduced 2008-01-24 2011-07-24
Physical type Mid-size SLR Ultracompact
Sensor Information
Powered by - BIONZ
Sensor type CMOS BSI-CMOS
Sensor size APS-C 1/2.3"
Sensor measurements 23.4 x 15.6mm 6.17 x 4.55mm
Sensor surface area 365.0mm² 28.1mm²
Sensor resolution 15 megapixel 16 megapixel
Anti aliasing filter
Aspect ratio - 4:3 and 16:9
Peak resolution 4688 x 3120 4608 x 3456
Highest native ISO 3200 3200
Highest enhanced ISO 6400 -
Minimum native ISO 100 100
RAW data
Autofocusing
Focus manually
Touch focus
Continuous AF
AF single
Tracking AF
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 11 9
Lens
Lens mount Pentax KAF2 fixed lens
Lens focal range - 26-130mm (5.0x)
Max aperture - f/3.5-4.8
Macro focus range - 3cm
Number of lenses 151 -
Crop factor 1.5 5.8
Screen
Type of screen Fixed Type Fixed Type
Screen diagonal 2.7 inch 3.3 inch
Screen resolution 230k dots 1,230k dots
Selfie friendly
Liveview
Touch functionality
Screen tech - XtraFine OLED display
Viewfinder Information
Viewfinder Optical (pentaprism) None
Viewfinder coverage 95 percent -
Viewfinder magnification 0.64x -
Features
Minimum shutter speed 30s 30s
Fastest shutter speed 1/4000s 1/1600s
Continuous shutter rate 3.0fps 10.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes -
Change WB
Image stabilization
Built-in flash
Flash range 13.00 m (at ISO 100) 3.70 m
Flash options Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless Auto, On, Off, Slow Sync
Hot shoe
AE bracketing
White balance bracketing
Fastest flash synchronize 1/180s -
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions - 1920 x 1080 (60fps), 1440 x 1080 (30fps), 1280 x 720 (30fps), 640 x 480 (30fps)
Highest video resolution None 1920x1080
Video file format - MPEG-4, AVCHD
Microphone port
Headphone port
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800 gr (1.76 pounds) 109 gr (0.24 pounds)
Physical dimensions 142 x 101 x 72mm (5.6" x 4.0" x 2.8") 93 x 54 x 13mm (3.7" x 2.1" x 0.5")
DXO scores
DXO Overall score 68 not tested
DXO Color Depth score 23.1 not tested
DXO Dynamic range score 11.2 not tested
DXO Low light score 714 not tested
Other
Battery life - 250 shots
Battery type - Battery Pack
Battery model - NP-BN
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec, Portrait 1/2)
Time lapse feature
Storage type SD/MMC/SDHC card microSD/SDHC, Memory Stick Micro
Card slots One One
Price at release $850 $350