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Olympus TG-3 vs Sony A7 III

Portability
90
Imaging
40
Features
46
Overall
42
Olympus Tough TG-3 front
 
Sony Alpha A7 III front
Portability
63
Imaging
74
Features
92
Overall
81

Olympus TG-3 vs Sony A7 III Key Specs

Olympus TG-3
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 100 - 6400
  • Sensor-shift Image Stabilization
  • 1920 x 1080 video
  • 25-100mm (F2.0-4.9) lens
  • 247g - 112 x 66 x 31mm
  • Announced March 2014
  • New Model is Olympus TG-4
Sony A7 III
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 51200 (Increase to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 650g - 127 x 96 x 74mm
  • Launched February 2018
  • Replaced the Sony A7 II
  • Replacement is Sony A7 IV
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Olympus TG-3 vs Sony A7 III Overview

On this page, we will be analyzing the Olympus TG-3 and Sony A7 III, one being a Waterproof and the latter is a Pro Mirrorless by brands Olympus and Sony. There is a significant difference among the resolutions of the TG-3 (16MP) and A7 III (24MP) and the TG-3 (1/2.3") and A7 III (Full frame) provide totally different sensor measurements.

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The TG-3 was manufactured 4 years earlier than the A7 III and that is a fairly sizable gap as far as camera tech is concerned. The two cameras have different body design with the Olympus TG-3 being a Compact camera and the Sony A7 III being a SLR-style mirrorless camera.

Before diving right into a complete comparison, here is a short highlight of how the TG-3 scores versus the A7 III in regards to portability, imaging, features and an overall rating.

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Reasons to pick Olympus TG-3 over the Sony A7 III

 TG-3 A7 III 

Reasons to pick Sony A7 III over the Olympus TG-3

 A7 III TG-3 
LaunchedFebruary 2018March 2014Fresher by 47 months
Focus manually More exact focusing
Screen typeTiltingFixed Tilting screen
Screen resolution922k460kCrisper screen (+462k dot)
Touch friendly screen Quickly navigate

Common features in the Olympus TG-3 and Sony A7 III

 TG-3 A7 III 
Screen dimensions3"3"Equal screen measurements
Selfie screen Neither offers selfie screen

Olympus TG-3 vs Sony A7 III Physical Comparison

In case you're planning to carry your camera regularly, you will have to factor in its weight and dimensions. The Olympus TG-3 offers outside measurements of 112mm x 66mm x 31mm (4.4" x 2.6" x 1.2") with a weight of 247 grams (0.54 lbs) whilst the Sony A7 III has dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 650 grams (1.43 lbs).

Contrast the Olympus TG-3 and Sony A7 III in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have at that time. Following is a front view physical size comparison of the TG-3 versus the A7 III.

Olympus TG-3 vs Sony A7 III size comparison

Using size and weight, the portability score of the TG-3 and A7 III is 90 and 63 respectively.

Olympus TG-3 vs Sony A7 III top view buttons comparison

Olympus TG-3 vs Sony A7 III Sensor Comparison

Oftentimes, it is very hard to see the contrast in sensor sizing purely by going through a spec sheet. The visual here will provide you a more clear sense of the sensor sizing in the TG-3 and A7 III.

As you can see, both cameras have different megapixels and different sensor sizing. The TG-3 featuring a smaller sensor will make getting shallower depth of field more challenging and the Sony A7 III will show greater detail due to its extra 8MP. Higher resolution will enable you to crop shots a bit more aggressively. The older TG-3 will be behind in sensor tech.

Olympus TG-3 vs Sony A7 III sensor size comparison

Olympus TG-3 vs Sony A7 III Screen and ViewFinder

Olympus TG-3 vs Sony A7 III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Olympus TG-3
Portrait photography with Sony A7 III
37
resolution is good (16MP)
has face detect autofocus
lack of manual focus
no external flash support
sensor is small (1/2.3")
lacks RAW files
84
has manual focus
sensor resolution is decent (24 megapixels)
large sensor size (Full frame)
offers face detect autofocus
saves RAW formats
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Street Comparison

Olympus TG-3 as a Street photography camera
Sony A7 III as a Street photography camera
59
has image stabilization (Sensor-shift)
environment proofing
screen is fixed
sensor is small (1/2.3")
lacks RAW files
heavier than competition (247 grams)
78
has a tilting screen
image stabilization (Sensor based 5-axis)
large sensor size (Full frame)
saves RAW formats
comes with touch focus
environment proofing
above average high ISO (51,200)
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Sports Comparison

Olympus TG-3 Sports photography highlights
Sony A7 III Sports photography highlights
47
has image stabilization (Sensor-shift)
resolution is good (16 megapixels)
has tracking focus
environment proofing
better than average battery power (330 per charge)
low frames per second (5.0 frames/s)
no shutter priority mode
sensor is small (1/2.3")
lacks phase detect autofocus
87
high shutter speed (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
sensor resolution is decent (24 megapixels)
large sensor size (Full frame)
offers tracking focus
environment proofing
great battery (610 per charge)
comes with phase detect autofocus
Photography Glossary

Travel Comparison

Olympus TG-3 as a Travel photography camera
Sony A7 III as a Travel photography camera
74
better than average battery power (330 shots)
environment proofing
resolution is good (16 megapixels)
built-in flash
quite wide (25mm)
fast max aperture (f2.0)
heavier than competition (247 grams)
doesn't have a selfie friendly display
73
great battery (610 shots)
environment proofing
connects via bluetooth
comes with touch focus
sensor resolution is decent (24 megapixels)
doesn't posses selfie friendly screen
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Landscape Comparison

Landscape photography with Olympus TG-3
Landscape photography with Sony A7 III
56
quite wide (25mm)
fast max aperture (f2.0)
good sized screen (3 inch)
has image stabilization (Sensor-shift)
resolution is good (16 megapixels)
environment proofing
better than average battery power (330 CIPA)
lack of manual focus
fixed lens (fixed lens mount)
sensor is small (1/2.3")
lacks RAW files
85
has manual focus
swap lenses (Sony E mount)
screen is a decent size (3 inch)
image stabilization (Sensor based 5-axis)
sensor resolution is decent (24 megapixels)
large sensor size (Full frame)
above average high ISO (51,200)
saves RAW formats
environment proofing
great battery (610 CIPA)
two card slots
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Vlogging Comparison

Olympus TG-3 Vlogging info
Sony A7 III Vlogging info
34
quite wide (25mm)
fast max aperture (f2.0)
has image stabilization (Sensor-shift)
has face detect autofocus
video resolution high (1920 x 1080 pxls)
doesn't have a selfie friendly display
does not have mic socket
heavier than competition (247 grams)
36
has touchscreen
image stabilization (Sensor based 5-axis)
offers face detect autofocus
high quality video (3840 x 2160 resolution)
does have mic socket
doesn't posses selfie friendly screen
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Olympus TG-3 vs Sony A7 III Specifications

Detailed spec comparison table for Olympus TG-3 and Sony A7 III
 Olympus Tough TG-3Sony Alpha A7 III
General Information
Make Olympus Sony
Model type Olympus Tough TG-3 Sony Alpha A7 III
Class Waterproof Pro Mirrorless
Announced 2014-03-31 2018-02-27
Physical type Compact SLR-style mirrorless
Sensor Information
Processor TruePic VII Bionz X
Sensor type BSI-CMOS BSI-CMOS
Sensor size 1/2.3" Full frame
Sensor dimensions 6.17 x 4.55mm 35.8 x 23.8mm
Sensor surface area 28.1mm² 852.0mm²
Sensor resolution 16 megapixels 24 megapixels
Anti alias filter
Aspect ratio 3:2 3:2 and 16:9
Full resolution 4608 x 3456 6000 x 4000
Max native ISO 6400 51200
Max boosted ISO - 204800
Lowest native ISO 100 100
RAW format
Lowest boosted ISO - 50
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Autofocus single
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Total focus points - 693
Lens
Lens mount type fixed lens Sony E
Lens zoom range 25-100mm (4.0x) -
Highest aperture f/2.0-4.9 -
Macro focusing range 1cm -
Available lenses - 121
Focal length multiplier 5.8 1
Screen
Type of screen Fixed Type Tilting
Screen size 3" 3"
Screen resolution 460k dots 922k dots
Selfie friendly
Liveview
Touch functionality
Screen technology TFT-LCD -
Viewfinder Information
Viewfinder type None Electronic
Viewfinder resolution - 2,359k dots
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.78x
Features
Slowest shutter speed 4 seconds 30 seconds
Maximum shutter speed 1/2000 seconds 1/8000 seconds
Continuous shooting rate 5.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Built-in flash
Flash distance - no built-in flash
Flash modes Auto, redeye reduction, fill-in, off, LED no built-in flash
Hot shoe
AE bracketing
WB bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (30p), 1280 x 720 (30p), 640 x 480 (30 fps) 3840 x 2160 (30p, 24p) 1920 x 1080 (120p, 60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Max video resolution 1920x1080 3840x2160
Video format H.264, Motion JPEG MPEG-4, AVCHD, XAVC S, H.264
Mic port
Headphone port
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.1 Gen 1 (5 GBit/sec)
GPS BuiltIn None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 247 gr (0.54 lbs) 650 gr (1.43 lbs)
Physical dimensions 112 x 66 x 31mm (4.4" x 2.6" x 1.2") 127 x 96 x 74mm (5.0" x 3.8" x 2.9")
DXO scores
DXO All around rating not tested 96
DXO Color Depth rating not tested 25.0
DXO Dynamic range rating not tested 14.7
DXO Low light rating not tested 3730
Other
Battery life 330 photos 610 photos
Style of battery Battery Pack Battery Pack
Battery ID LI-92B NP-FZ100
Self timer Yes (2 or 12 sec, custom) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse feature
Type of storage SD, SDHC, SDXC, Internal Memory SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Card slots 1 Two
Cost at launch $350 $1,998