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Olympus TG-870 vs Sony A7S III

Portability
91 Imaging
41 Features
46 Overall
43
Olympus Stylus Tough TG-870 front
 
Sony Alpha A7S III front
Portability
61 Imaging
64 Features
92 Overall
75

Olympus TG-870 vs Sony A7S III Key Specs

Olympus TG-870
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Tilting Display
  • ISO 125 - 6400 (Expand to 12800)
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 21-105mm (F3.5-5.7) lens
  • 221g - 113 x 64 x 28mm
  • Revealed January 2016
  • Replaced the Olympus TG-860
Sony A7S III
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Fully Articulated Screen
  • ISO 80 - 102400 (Bump 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
  • Released July 2020
  • Old Model is Sony A7S II
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Olympus TG-870 vs Sony A7S III Overview

Following is a extended overview of the Olympus TG-870 and Sony A7S III, former is a Ultracompact while the latter is a Pro Mirrorless by companies Olympus and Sony. There is a large difference among the resolutions of the TG-870 (16MP) and A7S III (12MP) and the TG-870 (1/2.3") and A7S III (Full frame) offer totally different sensor dimensions.

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The TG-870 was announced 5 years before the A7S III which is a fairly serious difference as far as camera tech is concerned. The two cameras have different body design with the Olympus TG-870 being a Ultracompact camera and the Sony A7S III being a SLR-style mirrorless camera.

Before getting into a full comparison, here is a simple overview of how the TG-870 matches up vs the A7S III with regards to portability, imaging, features and an overall score.

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Reasons to pick Olympus TG-870 over the Sony A7S III

          

          

            
 TG-870 A7S III 
          

        


        

          

            
Reasons to pick Sony A7S III over the Olympus TG-870

          

          

            
 A7S III TG-870 
ReleasedJuly 2020January 2016More modern by 55 months
Manual focus  Dial accurate focus
Screen typeFully articulatedTiltingFully Articulating screen
Screen resolution1440k921kClearer screen (+519k dot)
Selfie screen  Take selfies
Touch friendly screen  Quickly navigate
          

        


        

          

            
Common features in the Olympus TG-870 and Sony A7S III

          

          

            
 TG-870 A7S III 
Screen dimensions3"3"Equal screen sizing
          

        

        

	
	
	
	

        

          

            
Olympus TG-870 vs Sony A7S III Physical Comparison

          

          

            
In case you're going to carry around your camera, you will want to take into account its weight and volume. The Olympus TG-870 has outer dimensions of 113mm x 64mm x 28mm (4.4" x 2.5" x 1.1") with a weight of 221 grams (0.49 lbs) and the Sony A7S III has sizing of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") having a weight of 699 grams (1.54 lbs).
Look at the Olympus TG-870 and Sony A7S III in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses
Take into consideration, the weight of an ILC will differ depending on the lens you are utilizing during that time. Below is a front view measurement comparison of the TG-870 against the A7S III.
Olympus TG-870 vs Sony A7S III size comparison
Taking into account size and weight, the portability score of the TG-870 and A7S III is 91 and 61 respectively.
Olympus TG-870 vs Sony A7S III top view buttons comparison          

        


        

          

            
Olympus TG-870 vs Sony A7S III Sensor Comparison

          

          

            
Often, it is tough to envision the contrast in sensor sizes just by going through a spec sheet. The pic below might give you a greater sense of the sensor sizes in the TG-870 and A7S III.
Clearly, both of the cameras have different megapixels and different sensor sizes. The TG-870 having a smaller sensor will make achieving shallow DOF trickier and the Olympus TG-870 will show extra detail with its extra 4MP. Higher resolution will also allow you to crop shots a bit more aggressively. The more aged TG-870 will be disadvantaged in sensor tech.

            Olympus TG-870 vs Sony A7S III sensor size comparison
          

        


        

          

            
Olympus TG-870 vs Sony A7S III Screen and ViewFinder

          

          

                      

          Olympus TG-870 vs Sony A7S III Screen and Viewfinder comparison        


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Photography Type Scores

          

        

        
Portrait Comparison
Olympus TG-870 Portrait photography highlights
Sony A7S III Portrait photography highlights
36
 decent sensor resolution (16MP)
 includes face detect autofocus
 lack of manual focus
 no manual control
 external flash not possible
 small sensor (1/2.3")
 no RAW format
70
 has manual focus
 large sensor size (Full frame)
 provides face detect focusing
 exports RAW formats
 MP count low (12MP)
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Street Comparison
Olympus TG-870 Street photography highlights
Sony A7S III Street photography highlights
65
 screen tilts up and down
 has image stabilization (Optical)
 weather proof
 small sensor (1/2.3")
 no RAW format
 more heavy than competition (221g)
76
 image stabilization (Sensor based 5-axis)
 large sensor size (Full frame)
 exports RAW formats
 features focus by touch
 weather proofing
 very good ISO range (102,400)
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Sports Comparison
Olympus TG-870 Sports photography info
Sony A7S III Sports photography info
51
 has image stabilization (Optical)
 decent sensor resolution (16 megapixels)
 includes tracking focus
 weather proof
 better than average battery power (300 per charge)
 no shutter priority
 small sensor (1/2.3")
 no phase detect autofocus
75
 max shutter speed is good (1/8,000s)
 image stabilization (Sensor based 5-axis)
 large sensor size (Full frame)
 provides tracking focus
 weather proofing
 great battery power (600 shots)
 supports phase detect AF
 MP count low (12 megapixels)
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Travel Comparison
Olympus TG-870 Travel photography info
Sony A7S III Travel photography info
69
 better than average battery power (300 shots)
 weather proof
 decent sensor resolution (16 megapixels)
 flash built-in
 pretty wide (21mm)
 more heavy than competition (221g)
 screen isn't selfie friendly
 slow max aperture (f3.5)
70
 great battery power (600 per charge)
 weather proofing
 supports bluetooth
 features focus by touch
 screen is selfie friendly
 MP count low (12MP)
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Landscape Comparison
Olympus TG-870 Landscape photography info
Sony A7S III Landscape photography info
50
 pretty wide (21mm)
 pretty good screen size (3 inch)
 has image stabilization (Optical)
 decent sensor resolution (16 megapixels)
 weather proof
 better than average battery power (300 per charge)
 lack of manual focus
 cannot change lenses (fixed lens mount)
 slow max aperture (f3.5)
 no manual control
 small sensor (1/2.3")
 no RAW format
77
 has manual focus
 switch lenses (Sony E mount)
 screen is a good size (3")
 image stabilization (Sensor based 5-axis)
 large sensor size (Full frame)
 very good ISO range (102,400)
 exports RAW formats
 weather proofing
 great battery power (600 shots)
 has double storage slots
 MP count low (12MP)
Photography Glossary
Vlogging Comparison
Vlogging with Olympus TG-870
Vlogging with Sony A7S III
32
 pretty wide (21mm)
 has image stabilization (Optical)
 includes face detect autofocus
 video res high (1920 x 1080 pxls)
 slow max aperture (f3.5)
 screen isn't selfie friendly
 doesn't have microphone socket
 more heavy than competition (221g)
77
 screen is selfie friendly
 built-in touchscreen
 image stabilization (Sensor based 5-axis)
 provides face detect focusing
 video res high (3840 x 2160 pxls)
 comes with microphone port
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Olympus TG-870 vs Sony A7S III Specifications

          

          

                      


          

            Detailed spec comparison table for Olympus TG-870 and Sony A7S III
 Olympus Stylus Tough TG-870Sony Alpha A7S III
General Information
Manufacturer Olympus Sony
Model type Olympus Stylus Tough TG-870 Sony Alpha A7S III
Category Ultracompact Pro Mirrorless
Revealed 2016-01-06 2020-07-21
Body design Ultracompact SLR-style mirrorless
Sensor Information
Processor Chip TruePic VII Bionz XR
Sensor type BSI-CMOS BSI-CMOS
Sensor size 1/2.3" Full frame
Sensor measurements 6.17 x 4.55mm 35.6 x 23.8mm
Sensor surface area 28.1mm² 847.3mm²
Sensor resolution 16MP 12MP
Anti alias filter    
Aspect ratio 1:1, 4:3, 3:2 and  16:9 3:2 and  16:9
Full resolution 4608 x 3456 4240 x 2832
Max native ISO 6400 102400
Max boosted ISO 12800 409600
Min native ISO 125 80
RAW format    
Min boosted ISO - 50
Autofocusing
Manual focusing    
Touch to focus    
Continuous autofocus    
Autofocus single    
Autofocus tracking    
Autofocus selectice    
Autofocus center weighted    
Autofocus multi area    
Live view autofocus    
Face detect focus    
Contract detect focus    
Phase detect focus    
Total focus points - 759
Lens
Lens support fixed lens Sony E
Lens zoom range 21-105mm (5.0x) -
Largest aperture f/3.5-5.7 -
Macro focusing range 1cm -
Total lenses - 121
Crop factor 5.8 1
Screen
Display type Tilting Fully articulated
Display diagonal 3 inch 3 inch
Resolution of display 921k dot 1,440k dot
Selfie friendly    
Liveview    
Touch screen    
Viewfinder Information
Viewfinder type None Electronic
Viewfinder resolution - 9,440k dot
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.91x
Features
Lowest shutter speed 4 seconds 30 seconds
Highest shutter speed 1/2000 seconds 1/8000 seconds
Continuous shooting speed 7.0 frames per sec 10.0 frames per sec
Shutter priority    
Aperture priority    
Expose Manually    
Exposure compensation - Yes
Set white balance    
Image stabilization    
Built-in flash    
Flash distance 4.00 m (at ISO 1600) no built-in flash
Flash options Auto, redeye reduction, fill flash, off, LED illuminator no built-in flash
External flash    
Auto exposure bracketing    
White balance bracketing    
Exposure
Multisegment metering    
Average metering    
Spot metering    
Partial metering    
AF area metering    
Center weighted metering    
Video features
Supported video resolutions 1920 x 1080 (60p), 1280 x 720 (60p), 640 x 480 (60p) 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
Max video resolution 1920x1080 3840x2160
Video format MPEG-4, H.264 MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265
Microphone jack    
Headphone jack    
Connectivity
Wireless Built-In Built-In
Bluetooth    
NFC    
HDMI    
USB USB 2.0 (480 Mbit/sec) USB 3.2 Gen 1 (5 GBit/sec)
GPS BuiltIn None
Physical
Environment seal    
Water proofing    
Dust proofing    
Shock proofing    
Crush proofing    
Freeze proofing    
Weight 221g (0.49 lb) 699g (1.54 lb)
Physical dimensions 113 x 64 x 28mm (4.4" x 2.5" x 1.1") 129 x 97 x 81mm (5.1" x 3.8" x 3.2")
DXO scores
DXO All around rating not tested 85
DXO Color Depth rating not tested 23.6
DXO Dynamic range rating not tested 13.3
DXO Low light rating not tested 2993
Other
Battery life 300 images 600 images
Style of battery Battery Pack Battery Pack
Battery ID Li-50B NP-FZ100
Self timer Yes (2 or 10 sec, custom) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse feature   With downloadable app
Storage media SD/SDHC/SDXC, Internal Dual SD/CFexpress Type A slots
Storage slots 1 Dual
Pricing at launch $280 $3,499