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Olympus TG-4 vs Sony A9

The Olympus Tough TG-4 and the Sony Alpha A9 are two digital cameras that were announced, respectively, in April 2015 and April 2017. The TG-4 is a fixed lens compact, while the A9 is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (TG-4) and a full frame (A9) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Sony provides 24 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Olympus TG-4 VS Sony A9
Olympus TG-4 Sony A9
Fixed lens compact camera Mirrorless system camera
25-100mm f/2.0-4.9 Sony E mount lenses
15.9 MP, 1/2.3" Sensor 24 MP, Full Frame Sensor
1080/30p Video 4K/30p Video
ISO 100-6400 ISO 100-51200 (50-204800)
No viewfinder, LCD framing Electronic viewfinder (3686k dots)
3.0" LCD, 460k dots 3.0" LCD, 1440k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
5 shutter flaps per second 20 shutter flaps per second
In-body stabilizationIn-body stabilization
Waterproof body (nom)Weathersealed body
380 shots per battery charge650 shots per battery charge
112 x 66 x 31 mm, 247 g 127 x 96 x 63 mm, 673 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus Tough TG-4 and the Sony Alpha A9? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Olympus TG-4 and the Sony A9. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The TG-4 can be obtained in two different colors (black, red), while the A9 is only available in black.

Size Olympus TG-4 vs Sony A9
Compare TG-4 versus A9 top
Comparison TG-4 or A9 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A9 is considerably larger (65 percent) than the Olympus TG-4. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments. More than that, the TG-4 is water-proof up to 15m and can, thus, be used for underwater photography.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the TG-4 has a lens built in, whereas the A9 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A9 and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the TG-4 gets 380 shots out of its LI-92B battery, while the A9 can take 650 images on a single charge of its NP-FZ100 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Olympus TG-4» 4.4 in 2.6 in 1.2 in 8.7 oz 380 Y Apr 2015 379iOlympus TG-4
 
Sony A9« 5.0 in 3.8 in 2.5 in 23.7 oz 650 Y Apr 2017 4,499iSony A9
 
Canon SX700« » 4.4 in 2.6 in 1.4 in 9.5 oz 250 n Feb 2014 349iCanon SX700
 
Fujifilm XP140« » 4.3 in 2.8 in 1.1 in 7.3 oz 240 Y Feb 2019 229 iFujifilm XP140
 
Fujifilm XP130« » 4.3 in 2.8 in 1.1 in 7.3 oz 240 n Jan 2018 229iFujifilm XP130
 
Fujifilm XP120« » 4.3 in 2.8 in 1.1 in 7.2 oz 210 Y Jan 2017 229iFujifilm XP120
 
Nikon Z6« » 5.3 in 4.0 in 2.6 in 23.8 oz 310 Y Aug 2018 1,999 iNikon Z6
 
Nikon W300« » 4.4 in 2.6 in 1.1 in 8.1 oz 280 Y May 2017 389 iNikon W300
 
Olympus TG-6« » 4.4 in 2.6 in 1.3 in 8.9 oz 340 Y May 2019 449 iOlympus TG-6
 
Olympus TG-5« » 4.4 in 2.6 in 1.3 in 8.8 oz 340 Y May 2017 449iOlympus TG-5
 
Olympus E-M5 II« » 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099iOlympus E-M5 II
 
Sony A9 II« » 5.1 in 3.8 in 3.0 in 23.9 oz 690 Y Oct 2019 4,499 iSony A9 II
 
Sony A7 III« » 5.0 in 3.8 in 2.9 in 22.9 oz 610 Y Feb 2018 1,999 iSony A7 III
 
Sony A7R III« » 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199iSony A7R III
 
Sony HX80« » 4.0 in 2.3 in 1.4 in 8.6 oz 390 n Mar 2016 349 iSony HX80
 
Sony HX90V« » 4.0 in 2.3 in 1.4 in 8.6 oz 360 n Apr 2015 429 iSony HX90V
 
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999iSony A7 II
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The TG-4 was launched at a lower price than the A9, despite having a lens built in. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

 

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Olympus TG-4 features a 1/2.3-inch sensor and the Sony A9 a full frame sensor. The sensor area in the A9 is 2925 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 1.0. The sensor in the TG-4 has a native 4:3 aspect ratio, while the one in the A9 offers a 3:2 aspect.

In terms of underlying technology, both cameras are build around BSI-CMOS sensors.

Olympus TG-4 and Sony A9 sensor measures

With 24MP, the A9 offers a higher resolution than the TG-4 (15.9MP), but the A9 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 1.33μm for the TG-4) due to its larger sensor. Moreover, the A9 is a much more recent model (by 2 years) than the TG-4, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A9 for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Olympus TG-4 are 23 x 17.3 inch or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inch or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inch or 39 x 29.3 cm for excellent quality prints.

The A9 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Olympus Tough TG-4 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Sony Alpha A9 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

TG-4 versus A9 MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Olympus TG-4 1/2.3 15.9 4608 34561080/30p........Olympus TG-4
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792Sony A9
 
Canon SX700 1/2.3 15.9 4608 34561080/60p........Canon SX700
 
Fujifilm XP140 1/2.3 15.9 4608 34564K/15p........Fujifilm XP140
 
Fujifilm XP130 1/2.3 15.9 4608 34561080/60p........Fujifilm XP130
 
Fujifilm XP120 1/2.3 15.9 4608 34561080/60p........Fujifilm XP120
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995Nikon Z6
 
Nikon W300 1/2.3 15.9 4608 34564K/30p........Nikon W300
 
Olympus TG-6 1/2.3 12.0 4000 30004K/30p........Olympus TG-6
 
Olympus TG-5 1/2.3 12.0 4000 30004K/30p........Olympus TG-5
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273Olympus E-M5 II
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493Sony A9 II
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096Sony A7 III
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100Sony A7R III
 
Sony HX80 1/2.3 18.0 4896 36721080/60p........Sony HX80
 
Sony HX90V 1/2.3 18.0 4896 36721080/60p........Sony HX90V
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A9 provides a better video resolution than the TG-4. It can shoot movie footage at 4K/30p, while the Olympus is limited to 1080/30p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A9 has an electronic viewfinder (3686k dots), which can be very helpful when shooting in bright sunlight. In contrast, the TG-4 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Olympus TG-4 and Sony A9 along with similar information for a selection of comparators.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Olympus TG-4none n 3.0 460 fixed n 1/2000s 5.0 Y Y Olympus TG-4
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y Sony A9
 
Canon SX700none n 3.0 922 fixed n 1/3200s 8.5 Y Y Canon SX700
 
Fujifilm XP140none n 3.0 920 fixed n 1/2000s 10.0 Y Y Fujifilm XP140
 
Fujifilm XP130none n 3.0 920 fixed n 1/2000s 10.0 Y Y Fujifilm XP130
 
Fujifilm XP120none n 3.0 920 fixed n 1/2000s 10.0 Y Y Fujifilm XP120
 
Nikon Z63690 Y 3.2 2100 tilting Y 1/8000s 12.0 n Y Nikon Z6
 
Nikon W300none n 3.0 921 fixed n 1/4000s 7.0 Y Y Nikon W300
 
Olympus TG-6none n 3.0 1040 fixed n 1/2000s 20.0 Y Y Olympus TG-6
 
Olympus TG-5none n 3.0 460 fixed n 1/2000s 20.0 Y Y Olympus TG-5
 
Olympus E-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus E-M5 II
 
Sony A9 II3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A9 II
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y Sony A7 III
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A7R III
 
Sony HX80638 n 3.0 922 tilting n 1/2000s 10.0 Y Y Sony HX80
 
Sony HX90V638 n 3.0 921 tilting n 1/2000s 10.0 Y Y Sony HX90V
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y Sony A7 II

One difference between the cameras concerns the presence of an on-board flash. The TG-4 has one, while the A9 does not. While the built-in flash of the TG-4 is not very powerful, it can at times be useful as a fill-in light.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A9 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Olympus TG-4 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The TG-4 writes its imaging data to SDXC cards, while the A9 uses SDXC or Memory Stick PRO Duo cards. The A9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the TG-4 only has one slot. The A9 supports UHS-II cards (on its first slot), while the TG-4 can use UHS-I cards.

 

Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Olympus Tough TG-4 and Sony Alpha A9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Olympus TG-4-stereomono--micro2.0Y--Olympus TG-4
 
Sony A9YstereomonoYYmicro2.0YYYSony A9
 
Canon SX700-stereomono--micro2.0YY-Canon SX700
 
Fujifilm XP140-monomono--micro2.0Y-YFujifilm XP140
 
Fujifilm XP130-monomono--micro2.0Y-YFujifilm XP130
 
Fujifilm XP120-monomono--micro2.0Y--Fujifilm XP120
 
Nikon Z6YstereomonoYYmicro3.1Y-YNikon Z6
 
Nikon W300-stereomono--micro2.0Y-YNikon W300
 
Olympus TG-6-stereomono--micro2.0Y--Olympus TG-6
 
Olympus TG-5-stereomono--micro2.0Y--Olympus TG-5
 
Olympus E-M5 IIYstereomonoY-micro2.0Y--Olympus E-M5 II
 
Sony A9 IIYstereomonoYYmicro3.1YYYSony A9 II
 
Sony A7 IIIYstereomonoYYmicro3.1YYYSony A7 III
 
Sony A7R IIIYstereomonoYYmicro3.1YYYSony A7R III
 
Sony HX80-stereomono--micro2.0YY-Sony HX80
 
Sony HX90V-stereomono--micro2.0YY-Sony HX90V
 
Sony A7 IIYstereomonoYYmicro2.0YY-Sony A7 II

It is notable that the A9 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The TG-4 does not feature such a mic input.

Studio photographers will appreciate that the Sony A9 (unlike the TG-4) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the TG-4 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the TG-4 and the A9 have been discontinued, but can regularly be found used on eBay. The TG-4 was replaced by the Olympus TG-5, while the A9 was followed by the Sony A9 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Sony websites.

Review summary

So how do things add up? Is there a clear favorite between the Olympus TG-4 and the Sony A9? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Olympus Tough TG-4:

  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Ready to shoot: Has a lens built-in, whereas the A9 requires a separate lens.
  • More compact: Is smaller (112x66mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A9).
  • Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 15m).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been available for much longer (launched in April 2015).

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Arguments in favor of the Sony Alpha A9:

  • More detail: Has more megapixels (24 vs 15.9MP), which boosts linear resolution by 25%.
  • Better image quality: Is equipped with a larger and more technologically advanced sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 460k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (20 vs 5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (650 versus 380) out of a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 2 years of technical progress since the TG-4 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A9 is the clear winner of the contest (25 : 9 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

TG-4 09:25 A9

How about other alternatives? Do the specifications of the Olympus TG-4 and the Sony A9 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the TG-4 and the A9 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Olympus TG-4+79/1004/54/54/5 Apr 2015 379iOlympus TG-4
 
Sony A9+ +89/1005/55/55/5 Apr 2017 4,499iSony A9
 
Canon SX700+ +..4/5..4/5 Feb 2014 349iCanon SX700
 
Fujifilm XP140+..3.5/5..4/5 Feb 2019 229 iFujifilm XP140
 
Fujifilm XP130o..3.5/5..4/5 Jan 2018 229iFujifilm XP130
 
Fujifilm XP120o..3.5/5..4/5 Jan 2017 229iFujifilm XP120
 
Nikon Z6....4.5/54.5/55/5 Aug 2018 1,999 iNikon Z6
 
Nikon W300+..4/5..4/5 May 2017 389 iNikon W300
 
Olympus TG-6+ +76/1004/5..4/5 May 2019 449 iOlympus TG-6
 
Olympus TG-5+ +..4/5o4/5 May 2017 449iOlympus TG-5
 
Olympus E-M5 II+ +81/1005/54.5/55/5 Feb 2015 1,099iOlympus E-M5 II
 
Sony A9 II....5/5..5/5 Oct 2019 4,499 iSony A9 II
 
Sony A7 III+ +89/1005/55/55/5 Feb 2018 1,999 iSony A7 III
 
Sony A7R III+ +90/1004.5/55/55/5 Oct 2017 3,199iSony A7R III
 
Sony HX80.......... Mar 2016 349 iSony HX80
 
Sony HX90V+ +..4/5..4.5/5 Apr 2015 429 iSony HX90V
 
Sony A7 II+82/1004.5/55/55/5 Nov 2014 1,999iSony A7 II
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Olympus TG-4:
Check Ebay offers
Sony A9:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus TG-4 vs Sony A9

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Olympus TG-4 Sony A9
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 25-100mm f/2.0-4.9 Sony E mount lenses
    Launch Date April 2015 April 2017
    Launch Price USD 379 USD 4499
    Sensor Specs Olympus TG-4 Sony A9
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format 1/2.3" Sensor Full Frame Sensor
    Sensor Size 6.17 x 4.55 mm 35.6 x 23.8 mm
    Sensor Area 28.0735 mm2 847.28 mm2
    Sensor Diagonal 7.7 mm 42.8 mm
    Crop Factor 5.6x 1.0x
    Sensor Resolution 15.9 Megapixels 24 Megapixels
    Image Resolution 4608 x 3456 pixels 6000 x 4000 pixels
    Pixel Pitch 1.33 μm 5.94 μm
    Pixel Density 56.73 MP/cm2 2.83 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 4K/30p Video
    ISO Setting 100-6400 ISO 100-51200 ISO
    ISO Boost no Enhancement 50-204800 ISO
    Image Processor TruePic VII BIONZ X
    DXO Sensor Quality (score) .. 92
    DXO Color Depth (bits) .. 24.9
    DXO Dynamic Range (EV) .. 13.3
    DXO Low Light (ISO) .. 3517
    Screen Specs Olympus TG-4 Sony A9
    Viewfinder Type No viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 460k dots 1440k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus TG-4 Sony A9
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/2000/s 1/8000/s
    Continuous Shooting 5 shutter flaps/s 20 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/32000s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support UHS-I Single UHS-II
    Connectivity Specs Olympus TG-4 Sony A9
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Geotagging GPS built-in no internal GPS
    Body Specs Olympus TG-4 Sony A9
    Environmental SealingWaterproof body (15m)Weathersealed body
    Battery Type LI-92B NP-FZ100
    Battery Life (CIPA)380 shots per charge650 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 112 x 66 x 31 mm
    (4.4 x 2.6 x 1.2 in)
    127 x 96 x 63 mm
    (5.0 x 3.8 x 2.5 in)
    Camera Weight 247 g (8.7 oz) 673 g (23.7 oz)

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