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Olympus TG-4 vs Sony A7R IV

The Olympus Tough TG-4 and the Sony Alpha A7R IV are two digital cameras that were officially introduced, respectively, in April 2015 and July 2019. The TG-4 is a fixed lens compact, while the A7R IV is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (TG-4) and a full frame (A7R IV) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Sony provides 60.2 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
versus
Sony A7R IV
Olympus TG-4   Sony A7R IV
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 60.2 MP – Full Frame sensor
1080/30p Video 4K/30p Video
ISO 100-6,400 ISO 100-32,000 (50 - 102,400)
No viewfinder, LCD framing Electronic viewfinder (5760k dots)
3.0" LCD – 460k dots 3.0" LCD – 1440k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
5 shutter flaps per second 10 shutter flaps per second
In-body stabilizationIn-body stabilization
Waterproof body (15m)Weathersealed body
380 shots per battery charge670 shots per battery charge
112 x 66 x 31 mm, 247 g 129 x 96 x 78 mm, 665 g
Olympus TG-4:
Check current offers at
i
Sony A7R IV:
Check current price at
i

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus Tough TG-4 and the Sony Alpha A7R IV? 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

An illustration of the physical size and weight of the Olympus TG-4 and the Sony A7R IV is provided in the side-by-side display below. 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 A7R IV is only available in black.

Size Olympus TG-4 vs Sony A7R IV
Compare TG-4 versus A7R IV top
Comparison TG-4 or A7R IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R IV is considerably larger (68 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 A7R IV 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 A7R IV 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 A7R IV can take 670 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, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus TG-4 112 mm 66 mm 31 mm 247 g 380 Y Apr 2015 379i
2.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 i
3.
 
Canon SX700 113 mm 66 mm 35 mm 269 g 250 n Feb 2014 349i
4.
 
Fujifilm XP140 110 mm 71 mm 28 mm 207 g 240 Y Feb 2019 229 i
5.
 
Fujifilm XP120 110 mm 71 mm 28 mm 203 g 210 Y Jan 2017 229i
6.
 
Nikon W300 112 mm 66 mm 29 mm 231 g 280 Y May 2017 389 i
7.
 
Olympus TG-6 113 mm 66 mm 32 mm 253 g 340 Y May 2019 449 i
8.
 
Olympus TG-5 113 mm 66 mm 32 mm 250 g 340 Y May 2017 449i
9.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999 i
10.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099i
11.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 i
12.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 i
13.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199i
14.
 
Sony HX80 102 mm 58 mm 36 mm 245 g 390 n Mar 2016 349 i
15.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199i
16.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999i
17.
 
Sony HX90V 102 mm 58 mm 36 mm 245 g 360 n Apr 2015 429 i
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The TG-4 was launched at a lower price than the A7R IV, 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.

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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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Olympus TG-4 features a 1/2.3-inch sensor and the Sony A7R IV a full frame sensor. The sensor area in the A7R IV is 2936 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 A7R IV offers a 3:2 aspect.

Olympus TG-4 and Sony A7R IV sensor measures

With 60.2MP, the A7R IV offers a higher resolution than the TG-4 (15.9MP), but the A7R IV nevertheless has larger individual pixels (pixel pitch of 3.76μm versus 1.33μm for the TG-4) due to its larger sensor. Moreover, the A7R IV is a much more recent model (by 4 years and 3 months) 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. Coming back to sensor resolution, it should be mentioned that the A7R IV has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R IV for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 cm. The corresponding values for the Olympus TG-4 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.

The A7R IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the TG-4, the A7R IV has the capacity to capture high quality composite images (241MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Olympus Tough TG-4 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Sony Alpha A7R IV are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

TG-4 versus A7R IV 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.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus TG-4 1/2.3 15.9 4608 34561080/30p20.211.673747
2.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
3.
 
Canon SX700 1/2.3 15.9 4608 34561080/60p20.111.462945
4.
 
Fujifilm XP140 1/2.3 15.9 4608 34564K/15p20.712.2110252
5.
 
Fujifilm XP120 1/2.3 15.9 4608 34561080/60p20.511.990049
6.
 
Nikon W300 1/2.3 15.9 4608 34564K/30p20.512.093850
7.
 
Olympus TG-6 1/2.3 12.0 4000 30004K/30p20.712.2112752
8.
 
Olympus TG-5 1/2.3 12.0 4000 30004K/30p20.511.993450
9.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
10.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
11.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
12.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
13.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
14.
 
Sony HX80 1/2.3 18.0 4896 36721080/60p20.411.882248
15.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
16.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
17.
 
Sony HX90V 1/2.3 18.0 4896 36721080/60p20.211.673847
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the A7R IV 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.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R IV has an electronic viewfinder (5760k 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 following table reports on some other key feature differences and similarities of the Olympus TG-4, the Sony A7R IV, and comparable cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Olympus TG-4none n3.0 / 460 fixed n 1/2000s 5.0/s Y Y
2.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
3.
 
Canon SX700none n3.0 / 922 fixed n 1/3200s 8.5/s Y Y
4.
 
Fujifilm XP140none n3.0 / 920 fixed n 1/2000s 10.0/s Y Y
5.
 
Fujifilm XP120none n3.0 / 920 fixed n 1/2000s 10.0/s Y Y
6.
 
Nikon W300none n3.0 / 921 fixed n 1/4000s 7.0/s Y Y
7.
 
Olympus TG-6none n3.0 / 1040 fixed n 1/2000s 20.0/s Y Y
8.
 
Olympus TG-5none n3.0 / 460 fixed n 1/2000s 20.0/s Y Y
9.
 
Olympus E-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
10.
 
Olympus E-M5 II2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
11.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
12.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
13.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony HX80638 n3.0 / 922 tilting n 1/2000s 10.0/s Y Y
15.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
17.
 
Sony HX90V638 n3.0 / 921 tilting n 1/2000s 10.0/s Y Y
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The TG-4 has one, while the A7R IV 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 A7R IV 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 and the Sony A7R IV both have 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.

Concerning the storage of imaging data, both the TG-4 and the A7R IV write their files to SDXC cards. The A7R IV 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 A7R IV supports UHS-II cards (on both slots), 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 A7R IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus TG-4-stereo / mono--micro2.0Y--
2.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
3.
 
Canon SX700-stereo / mono--micro2.0YY-
4.
 
Fujifilm XP140-mono / mono--micro2.0Y-Y
5.
 
Fujifilm XP120-mono / mono--micro2.0Y--
6.
 
Nikon W300-stereo / mono--micro2.0Y-Y
7.
 
Olympus TG-6-stereo / mono--micro2.0Y--
8.
 
Olympus TG-5-stereo / mono--micro2.0Y--
9.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
10.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
11.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
12.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
13.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
14.
 
Sony HX80-stereo / mono--micro2.0YY-
15.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
17.
 
Sony HX90V-stereo / mono--micro2.0YY-

It is notable that the A7R IV 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 A7R IV (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.

The A7R IV is a recent model that features in the current product line-up of Sony. In contrast, the TG-4 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the TG-4 was succeeded by the Olympus TG-5. 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.

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Review summary

So what conclusions can be drawn? Is there a clear favorite between the Olympus TG-4 and the Sony A7R IV? Which camera is better? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Olympus Tough TG-4:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Ready to shoot: Has a lens built-in, whereas the A7R IV requires a separate lens.
  • More compact: Is smaller (112x66mm vs 129x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7R IV).
  • 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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Reasons to prefer the Sony Alpha A7R IV:

  • More detail: Has more megapixels (60.2 vs 15.9MP), which boosts linear resolution by 98%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • 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 (10 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 (670 versus 380) out of a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • 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 4 years and 3 months of technical progress since the TG-4 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7R IV is the clear winner of the contest (28 : 9 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

TG-4 09:28 A7R IV

How about other alternatives? Do the specifications of the Olympus TG-4 and the Sony A7R IV 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the TG-4 and the A7R IV in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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.

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Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus TG-4..+..79/1004/54/5 Apr 2015 379i
2.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499 i
3.
 
Canon SX700..+ +....4/54/5 Feb 2014 349i
4.
 
Fujifilm XP140..+....3.5/54/5 Feb 2019 229 i
5.
 
Fujifilm XP120..o....3.5/54/5 Jan 2017 229i
6.
 
Nikon W300..+....4/54/5 May 2017 389 i
7.
 
Olympus TG-6..+ +4.5/576/1004/54/5 May 2019 449 i
8.
 
Olympus TG-5..+ +....4/54/5 May 2017 449i
9.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 1,999 i
10.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 1,099i
11.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 i
12.
 
Sony A7S III..+ +5/591/1004.5/55/5 Jul 2020 3,499 i
13.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199i
14.
 
Sony HX80............ Mar 2016 349 i
15.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199i
16.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999i
17.
 
Sony HX90V4/5+ +....4/54.5/5 Apr 2015 429 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time 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:
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Sony A7R IV:
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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Olympus TG-4 vs Sony A7R IV

    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 A7R IV
    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 July 2019
    Launch Price USD 379 USD 3,499
    Sensor Specs Olympus TG-4 Sony A7R IV
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format 1/2.3" Sensor Full Frame Sensor
    Sensor Size 6.17 x 4.55 mm 35.7 x 23.8 mm
    Sensor Area 28.0735 mm2 849.66 mm2
    Sensor Diagonal 7.7 mm 42.9 mm
    Crop Factor 5.6x 1.0x
    Sensor Resolution 15.9 Megapixels 60.2 Megapixels
    Image Resolution 4608 x 3456 pixels 9504 x 6336 pixels
    Pixel Pitch 1.33 μm 3.76 μm
    Pixel Density 56.73 MP/cm2 7.09 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/30p Video 4K/30p Video
    ISO Setting 100 - 6,400 ISO 100 - 32,000 ISO
    ISO Boost no Enhancement 50 - 102,400 ISO
    Image Processor TruePic VII BIONZ X
    DXO Sensor Quality (score) .. 99
    DXO Color Depth (bits) .. 26.0
    DXO Dynamic Range (EV) .. 14.8
    DXO Low Light (ISO) .. 3344
    Screen Specs Olympus TG-4 Sony A7R IV
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 5760k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 460k dots 1440k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus TG-4 Sony A7R IV
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/8000s
    Continuous Shooting 5 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support UHS-I Dual UHS-II
    Connectivity Specs Olympus TG-4 Sony A7R IV
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    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 A7R IV
    Environmental SealingWaterproof body (15m)Weathersealed body
    Battery Type LI-92B NP-FZ100
    Battery Life (CIPA)380 shots per charge670 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)
    129 x 96 x 78 mm
    (5.1 x 3.8 x 3.1 in)
    Camera Weight 247 g (8.7 oz) 665 g (23.5 oz)
    Olympus TG-4:
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    Sony A7R IV:
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