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Olympus TG-870 vs Sony A7

Portability
91
Imaging
41
Features
46
Overall
43
Olympus Stylus Tough TG-870 front
 
Sony Alpha A7 front
Portability
78
Imaging
70
Features
80
Overall
74

Olympus TG-870 vs Sony A7 Key Specs

Olympus TG-870
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Tilting Screen
  • 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
  • Older Model is Olympus TG-860
Sony A7
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 50 - 25600
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Sony E Mount
  • 474g - 127 x 94 x 48mm
  • Announced January 2014
  • Successor is Sony A7 II
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Olympus TG-870 vs Sony A7 Overview

On this page, we are looking at the Olympus TG-870 vs Sony A7, former is a Ultracompact while the other is a Pro Mirrorless by brands Olympus and Sony. There exists a sizable gap among the image resolutions of the TG-870 (16MP) and A7 (24MP) and the TG-870 (1/2.3") and A7 (Full frame) offer different sensor size.

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The TG-870 was released 24 months after the A7 making them a generation away from one another. Both of these cameras have different body design with the Olympus TG-870 being a Ultracompact camera and the Sony A7 being a SLR-style mirrorless camera.

Before going into a detailed comparison, here is a simple summation of how the TG-870 scores vs the A7 in regards to portability, imaging, features and an overall mark.

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Reasons to pick Olympus TG-870 over the Sony A7

 TG-870 A7 
AnnouncedJanuary 2016January 2014Newer by 24 months

Reasons to pick Sony A7 over the Olympus TG-870

 A7 TG-870 
Manual focus Very accurate focusing
Display resolution1230k921kSharper display (+309k dot)

Common features in the Olympus TG-870 and Sony A7

 TG-870 A7 
Display typeTiltingTiltingTilting display
Display dimensions3"3"Equal display size
Selfie screen Lacking selfie screen
Touch display Lacking Touch display

Olympus TG-870 vs Sony A7 Physical Comparison

If you're aiming to travel with your camera regularly, you should consider its weight and measurements. The Olympus TG-870 features exterior dimensions of 113mm x 64mm x 28mm (4.4" x 2.5" x 1.1") and a weight of 221 grams (0.49 lbs) and the Sony A7 has proportions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 474 grams (1.04 lbs).

Contrast the Olympus TG-870 vs Sony A7 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an ILC will change dependant on the lens you are utilising during that time. Underneath is a front view proportions comparison of the TG-870 versus the A7.

Olympus TG-870 vs Sony A7 size comparison

Looking at dimensions and weight, the portability rating of the TG-870 and A7 is 91 and 78 respectively.

Olympus TG-870 vs Sony A7 top view buttons comparison

Olympus TG-870 vs Sony A7 Sensor Comparison

Normally, it is difficult to visualize the contrast in sensor dimensions simply by viewing technical specs. The image underneath will help provide you a greater sense of the sensor dimensions in the TG-870 and A7.

As you have seen, each of the cameras have different megapixel count and different sensor dimensions. The TG-870 due to its smaller sensor is going to make achieving shallower DOF more challenging and the Sony A7 will result in extra detail as a result of its extra 8MP. Greater resolution will enable you to crop photos a bit more aggressively. The more recent TG-870 provides an edge in sensor technology.

Olympus TG-870 vs Sony A7 sensor size comparison

Olympus TG-870 vs Sony A7 Screen and ViewFinder

Olympus TG-870 vs Sony A7 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus TG-870 as a Portrait photography camera
Sony A7 as a Portrait photography camera
36
decent megapixels (16MP)
has face detect focusing
focusing manually not possible
lack of manual mode
cannot use external flash
very small sensor size (1/2.3")
lack of RAW support
82
you can focus manually
MP count decent (24MP)
big sensor size (Full frame)
supports face detection focusing
saves RAW formats
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Street Comparison

Street photography with Olympus TG-870
Street photography with Sony A7
65
tilting screen
has image stabilization (Optical)
environment proofing
very small sensor size (1/2.3")
lack of RAW support
heavier than competition in class (221 grams)
79
has a tilting screen
big sensor size (Full frame)
saves RAW formats
weather proof
lighter than competition in class (474g)
great high ISO (25,600)
lack of image stabilization
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Sports Comparison

Olympus TG-870 Sports photography features
Sony A7 Sports photography features
51
has image stabilization (Optical)
decent megapixels (16 megapixels)
has tracking focus
environment proofing
great battery (300 per charge)
no shutter priority mode
very small sensor size (1/2.3")
lack of phase detect AF
66
maximum shutter speed is high (1/8,000s)
MP count decent (24MP)
big sensor size (Full frame)
weather proof
comes with phase detect AF
max fps very slow (5.0 frames/s)
lack of image stabilization
bad battery (340 per charge)
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Travel Comparison

Olympus TG-870 as a Travel photography camera
Sony A7 as a Travel photography camera
69
great battery (300 per charge)
environment proofing
decent megapixels (16 megapixels)
built-in flash
really wide (21mm)
heavier than competition in class (221 grams)
doesn't feature selfie friendly screen
sluggish maximum aperture (f3.5)
69
lighter than competition in class (474 grams)
weather proof
MP count decent (24 megapixels)
bad battery (340 per charge)
screen is not selfie friendly
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Landscape Comparison

Olympus TG-870 Landscape photography details
Sony A7 Landscape photography details
50
really wide (21mm)
screen size is good (3 inch)
has image stabilization (Optical)
decent megapixels (16 megapixels)
environment proofing
great battery (300 per charge)
focusing manually not possible
can't change lenses (fixed lens mount)
sluggish maximum aperture (f3.5)
lack of manual mode
very small sensor size (1/2.3")
lack of RAW support
75
you can focus manually
swap lenses (Sony E mount)
screen is a decent size (3")
MP count decent (24MP)
big sensor size (Full frame)
great high ISO (25,600)
saves RAW formats
weather proof
lack of image stabilization
bad battery (340 CIPA)
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Vlogging Comparison

Olympus TG-870 Vlogging advice
Sony A7 Vlogging advice
32
really wide (21mm)
has image stabilization (Optical)
has face detect focusing
high quality video (1920 x 1080 pixels)
sluggish maximum aperture (f3.5)
doesn't feature selfie friendly screen
lack of mic port
heavier than competition in class (221 grams)
35
supports face detection focusing
video resolution high (1920 x 1080 pxls)
does have external microphone support
lighter than competition in class (474 grams)
screen is not selfie friendly
lack of image stabilization
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Olympus TG-870 vs Sony A7 Specifications

Detailed spec comparison table for Olympus TG-870 and Sony A7
 Olympus Stylus Tough TG-870Sony Alpha A7
General Information
Make Olympus Sony
Model type Olympus Stylus Tough TG-870 Sony Alpha A7
Class Ultracompact Pro Mirrorless
Revealed 2016-01-06 2014-01-22
Physical type Ultracompact SLR-style mirrorless
Sensor Information
Chip TruePic VII Bionz X
Sensor type BSI-CMOS CMOS
Sensor size 1/2.3" Full frame
Sensor measurements 6.17 x 4.55mm 35.8 x 23.9mm
Sensor area 28.1mm² 855.6mm²
Sensor resolution 16 megapixel 24 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest resolution 4608 x 3456 6000 x 4000
Highest native ISO 6400 25600
Highest boosted ISO 12800 -
Min native ISO 125 50
RAW images
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Single autofocus
Autofocus tracking
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points - 117
Cross type focus points - 25
Lens
Lens support fixed lens Sony E
Lens zoom range 21-105mm (5.0x) -
Max aperture f/3.5-5.7 -
Macro focusing range 1cm -
Amount of lenses - 121
Crop factor 5.8 1
Screen
Type of screen Tilting Tilting
Screen size 3" 3"
Screen resolution 921 thousand dots 1,230 thousand dots
Selfie friendly
Liveview
Touch operation
Screen tech - Xtra Fine LCD
Viewfinder Information
Viewfinder type None Electronic
Viewfinder resolution - 2,359 thousand dots
Viewfinder coverage - 100%
Viewfinder magnification - 0.71x
Features
Slowest shutter speed 4 seconds 30 seconds
Maximum shutter speed 1/2000 seconds 1/8000 seconds
Continuous shooting rate 7.0fps 5.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation - Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash distance 4.00 m (at ISO 1600) no built-in flash
Flash modes Auto, redeye reduction, fill flash, off, LED illuminator no built-in flash
Hot shoe
AEB
WB bracketing
Maximum flash synchronize - 1/250 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (60p), 1280 x 720 (60p), 640 x 480 (60p) 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Highest video resolution 1920x1080 1920x1080
Video data format MPEG-4, H.264 MPEG-4, AVCHD
Microphone support
Headphone support
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS BuiltIn None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 221g (0.49 lb) 474g (1.04 lb)
Physical dimensions 113 x 64 x 28mm (4.4" x 2.5" x 1.1") 127 x 94 x 48mm (5.0" x 3.7" x 1.9")
DXO scores
DXO All around rating not tested 90
DXO Color Depth rating not tested 24.8
DXO Dynamic range rating not tested 14.2
DXO Low light rating not tested 2248
Other
Battery life 300 photos 340 photos
Battery style Battery Pack Battery Pack
Battery ID Li-50B NP-FW50
Self timer Yes (2 or 10 sec, custom) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse feature With downloadable app
Type of storage SD/SDHC/SDXC, Internal SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Card slots Single Single
Launch price $280 $798