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Olympus TG-6 vs Sony A7 IV

The Olympus Tough TG-6 and the Sony Alpha A7 IV are two digital cameras that were revealed to the public, respectively, in May 2019 and October 2021. The TG-6 is a fixed lens compact, while the A7 IV is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (TG-6) and a full frame (A7 IV) sensor. The Olympus has a resolution of 12 megapixels, whereas the Sony provides 32.7 MP.

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

Headline Specifications
Olympus TG-6
versus
Sony A7 IV
Olympus TG-6   Sony A7 IV
Fixed lens compact camera Mirrorless system camera
25-100mm f/2.0-4.9 Sony E mount lenses
12 MP – 1/2.3" sensor 32.7 MP – Full Frame sensor
4K/30p Video 4K/60p Video
ISO 100-12,800 ISO 100-51,200 (50 - 204,800)
No viewfinder, LCD framing Electronic viewfinder (3686k dots)
3.0" LCD – 1040k dots 3.0" LCD – 1037k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
20 shutter flaps per second 10 shutter flaps per second
In-body stabilizationIn-body stabilization
Waterproof body (15m)Weathersealed body
340 shots per battery charge580 shots per battery charge
113 x 66 x 32 mm, 253 g 131 x 96 x 80 mm, 659 g
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Check TG-6 price at
amazon.com
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Check A7 IV price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus Tough TG-6 and the Sony Alpha A7 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-6 and the Sony A7 IV is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The TG-6 can be obtained in two different colors (black, red), while the A7 IV is only available in black.

Size Olympus TG-6 vs Sony A7 IV
Compare TG-6 versus A7 IV top
Comparison TG-6 or A7 IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 IV is considerably larger (69 percent) than the Olympus TG-6. 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-6 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-6 has a lens built in, whereas the A7 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 A7 IV and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the TG-6 gets 340 shots out of its LI-92B battery, while the A7 IV can take 580 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. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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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-6 113 mm 66 mm 32 mm 253 g 340 Y May 2019 449 amazon.com
2.
 
Sony A7 IV 131 mm 96 mm 80 mm 659 g 580 Y Oct 2021 2,499 amazon.com
3.
 
Canon SX740 110 mm 64 mm 40 mm 299 g 265 n Jul 2018 399 amazon.com
4.
 
Fujifilm XF10 113 mm 64 mm 41 mm 279 g 330 n Jul 2018 499ebay.com
5.
 
Olympus TG-5 113 mm 66 mm 32 mm 250 g 340 Y May 2017 449ebay.com
6.
 
Olympus TG-4 112 mm 66 mm 31 mm 247 g 380 Y Apr 2015 379ebay.com
7.
 
Olympus E-PM1 110 mm 64 mm 34 mm 265 g 330 n Jun 2011 499ebay.com
8.
 
Olympus XZ-1 111 mm 65 mm 42 mm 275 g 320 n Jan 2011 499ebay.com
9.
 
Panasonic FT7 117 mm 76 mm 37 mm 319 g 300 Y May 2018 449ebay.com
10.
 
Ricoh WG-6 118 mm 66 mm 33 mm 246 g 340 Y Feb 2019 399 amazon.com
11.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 4,499 amazon.com
12.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 amazon.com
13.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
14.
 
Sony HX99 102 mm 58 mm 36 mm 242 g 370 n Aug 2018 449 amazon.com
15.
 
Sony HX95 102 mm 58 mm 36 mm 242 g 370 n Aug 2018 429 amazon.com
16.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
17.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The TG-6 was launched at a lower price than the A7 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the 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-6 features a 1/2.3-inch sensor and the Sony A7 IV a full frame sensor. The sensor area in the A7 IV is 2964 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-6 has a native 4:3 aspect ratio, while the one in the A7 IV offers a 3:2 aspect.

Olympus TG-6 and Sony A7 IV sensor measures

With 32.7MP, the A7 IV offers a higher resolution than the TG-6 (12MP), but the A7 IV nevertheless has larger individual pixels (pixel pitch of 5.12μm versus 1.53μm for the TG-6) due to its larger sensor. Moreover, the A7 IV is a much more recent model (by 2 years and 5 months) than the TG-6, 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 A7 IV has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7 IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 IV for good quality output (200 dots per inch) amounts to 35 x 23.4 inches or 89 x 59.3 cm, for very good quality (250 dpi) 28 x 18.7 inches or 71.2 x 47.5 cm, and for excellent quality (300 dpi) 23.4 x 15.6 inches or 59.3 x 39.6 cm. The corresponding values for the Olympus TG-6 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

The A7 IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Olympus Tough TG-6 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Sony Alpha A7 IV are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

Technology-wise, both cameras are equipped with BSI-CMOS (Backside Illuminated Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

TG-6 versus A7 IV MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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-6 1/2.3 12.0 4000 30004K/30p20.712.2112752
2.
 
Sony A7 IV Full Frame 32.7 7008 46724K/60p25.414.7337997
3.
 
Canon SX740 1/2.3 20.2 5184 38884K/30p20.612.1105051
4.
 
Fujifilm XF10 APS-C 24.0 6000 40004K/15p24.013.4184483
5.
 
Olympus TG-5 1/2.3 12.0 4000 30004K/30p20.511.993450
6.
 
Olympus TG-4 1/2.3 15.9 4608 34561080/30p20.211.673747
7.
 
Olympus E-PM1 Four Thirds 12.2 4032 30241080/60i21.010.349952
8.
 
Olympus XZ-1 1/1.7 10.1 3664 2752720/30p18.810.411734
9.
 
Panasonic FT7 1/2.3 20.2 5184 38884K/30p20.612.1102851
10.
 
Ricoh WG-6 1/2.3 20.2 5184 38884K/30p20.712.2110452
11.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
12.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
13.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
14.
 
Sony HX99 1/2.3 18.0 4896 36724K/30p20.612.1105851
15.
 
Sony HX95 1/2.3 18.0 4896 36724K/30p20.612.1105751
16.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
17.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
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 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 A7 IV provides a faster frame rate than the TG-6. It can shoot movie footage at 4K/60p, while the Olympus is limited to 4K/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7 IV has an electronic viewfinder (3686k dots), which can be very helpful when shooting in bright sunlight. In contrast, the TG-6 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-6, the Sony A7 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-6none n3.0 / 1040 fixed n 1/2000s 20.0/s Y Y
2.
 
Sony A7 IV3686 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
3.
 
Canon SX740none n3.0 / 922 tilting n 1/3200s 10.0/s Y Y
4.
 
Fujifilm XF10none n3.0 / 1040 fixed Y 1/4000s 6.0/s Y n
5.
 
Olympus TG-5none n3.0 / 460 fixed n 1/2000s 20.0/s Y Y
6.
 
Olympus TG-4none n3.0 / 460 fixed n 1/2000s 5.0/s Y Y
7.
 
Olympus E-PM1optional n3.0 / 460 fixed n 1/4000s 5.5/s n Y
8.
 
Olympus XZ-1optional n3.0 / 614 fixed n 1/2000s 2.0/s Y Y
9.
 
Panasonic FT71170 n3.0 / 1040 fixed n 1/1300s 10.0/s Y Y
10.
 
Ricoh WG-6none n3.0 / 1040 fixed n 1/4000s 1.0/s Y n
11.
 
Sony A9 II3686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
12.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
13.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony HX99638 n3.0 / 922 tilting Y 1/2000s 10.0/s Y Y
15.
 
Sony HX95638 n3.0 / 922 tilting n 1/2000s 10.0/s Y Y
16.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
17.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n 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-6 has one, while the A7 IV does not. While the built-in flash of the TG-6 is not very powerful, it can at times be useful as a fill-in light.

The A7 IV has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the TG-6 does not have a selfie-screen.

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 A7 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-6 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-6 writes its imaging data to SDXC cards, while the A7 IV uses CFexpress (type A) or SDXC cards. The A7 IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the TG-6 only has one slot. The A7 IV supports UHS-II cards (on both slots), while the TG-6 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-6 and Sony Alpha A7 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-6-stereo / mono--micro2.0Y--
2.
 
Sony A7 IVYstereo / monoYYfull3.2Y-Y
3.
 
Canon SX740-stereo / mono--micro2.0Y-Y
4.
 
Fujifilm XF10-stereo / monoY-micro2.0Y-Y
5.
 
Olympus TG-5-stereo / mono--micro2.0Y--
6.
 
Olympus TG-4-stereo / mono--micro2.0Y--
7.
 
Olympus E-PM1Ystereo / mono--mini2.0---
8.
 
Olympus XZ-1Ymono / ---mini2.0---
9.
 
Panasonic FT7-stereo / mono--micro2.0Y--
10.
 
Ricoh WG-6-mono / mono--micro3.0---
11.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY
12.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
13.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
14.
 
Sony HX99-stereo / mono--micro2.0YYY
15.
 
Sony HX95-stereo / mono--micro2.0YYY
16.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
17.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-

It is notable that the A7 IV has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The TG-6 does not feature such a mic input.

Travel and landscape photographers will find it useful that the TG-6 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the TG-6 and the A7 IV are recent models that are part of the current product line-up. The TG-6 replaced the earlier Olympus TG-5, while the A7 IV followed on from the Sony A7 III. Further information on the features and operation of the TG-6 and A7 IV can be found, respectively, in the Olympus TG-6 Manual (free pdf) or the online Sony A7 IV Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Olympus TG-6 and the Sony A7 IV? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Olympus Tough TG-6:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Faster burst: Shoots at higher frequency (20 vs 10 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Ready to shoot: Has a lens built-in, whereas the A7 IV requires a separate lens.
  • More compact: Is smaller (113x66mm vs 131x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7 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 May 2019).

ilogo

Reasons to prefer the Sony Alpha A7 IV:

  • More detail: Has more megapixels (32.7 vs 12MP), which boosts linear resolution by 68%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • 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 movie framerates (4K/60p versus 4K/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 flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • 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 (580 versus 340) 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 (3.2 vs 2.0).
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • 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 and 5 months of technical progress since the TG-6 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A7 IV is the clear winner of the contest (25 : 11 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

TG-6 11:25 A7 IV

How about other alternatives? Do the specifications of the Olympus TG-6 and the Sony A7 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the TG-6 or the A7 IV. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

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 (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-64/5+ +4.5/576/1004/54/5 May 2019 449 amazon.com
2.
 
Sony A7 IV5/5+ +4.5/589/1004.5/54.5/5 Oct 2021 2,499 amazon.com
3.
 
Canon SX740..+3.5/5..4/54/5 Jul 2018 399 amazon.com
4.
 
Fujifilm XF10....4/575/1004/54.5/5 Jul 2018 499ebay.com
5.
 
Olympus TG-5..+ +4.5/5..4/54/5 May 2017 449ebay.com
6.
 
Olympus TG-4..+..79/1004/54/5 Apr 2015 379ebay.com
7.
 
Olympus E-PM1..86/100..71/1004.5/54.5/5 Jun 2011 499ebay.com
8.
 
Olympus XZ-14/5....74/1004.5/54.5/5 Jan 2011 499ebay.com
9.
 
Panasonic FT7..+....3.5/53.5/5 May 2018 449ebay.com
10.
 
Ricoh WG-6........3.5/53.5/5 Feb 2019 399 amazon.com
11.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 4,499 amazon.com
12.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499 amazon.com
13.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
14.
 
Sony HX99........4/54.5/5 Aug 2018 449 amazon.com
15.
 
Sony HX95............ Aug 2018 429 amazon.com
16.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
17.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Check TG-6 price at
amazon.com
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Check A7 IV price at
amazon.com

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, 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-6 vs Sony A7 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-6 Sony A7 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 May 2019 October 2021
    Launch Price USD 449 USD 2,499
    Sensor Specs Olympus TG-6 Sony A7 IV
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format 1/2.3" Sensor Full Frame Sensor
    Sensor Size 6.17 x 4.55 mm 35.9 x 23.9 mm
    Sensor Area 28.0735 mm2 858.01 mm2
    Sensor Diagonal 7.7 mm 43.1 mm
    Crop Factor 5.6x 1.0x
    Sensor Resolution 12 Megapixels 32.7 Megapixels
    Image Resolution 4000 x 3000 pixels 7008 x 4672 pixels
    Pixel Pitch 1.53 μm 5.12 μm
    Pixel Density 42.74 MP/cm2 3.82 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 4K/30p Video 4K/60p Video
    ISO Setting 100 - 12,800 ISO 100 - 51,200 ISO
    ISO Boost no Enhancement 50 - 204,800 ISO
    Image Processor TruePic VIII BIONZ XR
    DXO Sensor Quality (score) .. 97
    DXO Color Depth (bits) .. 25.4
    DXO Dynamic Range (EV) .. 14.7
    DXO Low Light (ISO) .. 3379
    Screen Specs Olympus TG-6 Sony A7 IV
    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 3.0inch 3.0inch
    LCD Resolution 1040k dots 1037k dots
    LCD Attachment Fixed screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus TG-6 Sony A7 IV
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/8000s
    Continuous Shooting 20 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards CFexA or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Dual UHS-II
    Connectivity Specs Olympus TG-6 Sony A7 IV
    External Flash no Hotshoe Hotshoe
    USB Connector USB 2.0 USB 3.2
    HDMI Port micro HDMI full HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Geotagging GPS built-in no internal GPS
    Body Specs Olympus TG-6 Sony A7 IV
    Environmental SealingWaterproof body (15m)Weathersealed body
    Battery Type LI-92B NP-FZ100
    Battery Life (CIPA)340 shots per charge580 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 113 x 66 x 32 mm
    (4.4 x 2.6 x 1.3 in)
    131 x 96 x 80 mm
    (5.2 x 3.8 x 3.1 in)
    Camera Weight 253 g (8.9 oz) 659 g (23.2 oz)
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