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Olympus TG-4 vs Panasonic GX9

The Olympus Tough TG-4 and the Panasonic Lumix DC-GX9 are two digital cameras that were officially introduced, respectively, in April 2015 and February 2018. The TG-4 is a fixed lens compact, while the GX9 is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (TG-4) and a Four Thirds (GX9) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Panasonic provides 20.2 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
Panasonic GX9
Olympus TG-4   Panasonic GX9
Fixed lens compact camera Mirrorless system camera
25-100mm f/2.0-4.9 Micro Four Thirds lenses
15.9 MP – 1/2.3" sensor 20.2 MP – Four Thirds sensor
1080/30p Video 4K/30p Video
ISO 100-6,400 ISO 200-25,600
No viewfinder, LCD framing Electronic viewfinder (2760k dots)
3.0" LCD – 460k dots 3.0" LCD – 1240k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
5 shutter flaps per second 9 shutter flaps per second
In-body stabilizationIn-body stabilization
Waterproof body (15m)not weather sealed
380 shots per battery charge260 shots per battery charge
112 x 66 x 31 mm, 247 g 124 x 72 x 47 mm, 407 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus Tough TG-4 and the Panasonic Lumix DC-GX9? 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.

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Body comparison

The physical size and weight of the Olympus TG-4 and the Panasonic GX9 are illustrated 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 measures are rounded to the nearest millimeter.

The TG-4 can be obtained in two different colors (black, red), while the GX9 is also available in two color-versions, but different ones (black, silver).

Size Olympus TG-4 vs Panasonic GX9
Compare TG-4 versus GX9 top
Comparison TG-4 or GX9 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX9 is notably larger (21 percent) than the Olympus TG-4. It is worth mentioning in this context that the TG-4 is splash and dust resistant, while the GX9 does not feature any corresponding weather-sealing. 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 GX9 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 GX9 and their specifications in the Micro Four Thirds Lens Catalog.

Concerning battery life, the TG-4 gets 380 shots out of its Olympus LI-92B battery, while the GX9 can take 260 images on a single charge of its Panasonic DMW-BLG10 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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
# image 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 379ebay.com
2.
 
Panasonic GX9 124 mm 72 mm 47 mm 407 g 260 n Feb 2018 849ebay.com
3.
 
Canon SX700 113 mm 66 mm 35 mm 269 g 250 n Feb 2014 349ebay.com
4.
 
Fujifilm XP140 110 mm 71 mm 28 mm 207 g 240 Y Feb 2019 229ebay.com
5.
 
Fujifilm XP130 110 mm 71 mm 28 mm 207 g 240 Y Jan 2018 229ebay.com
6.
 
Fujifilm XP120 110 mm 71 mm 28 mm 203 g 210 Y Jan 2017 229ebay.com
7.
 
Nikon W300 112 mm 66 mm 29 mm 231 g 280 Y May 2017 389ebay.com
8.
 
Olympus TG-6 113 mm 66 mm 32 mm 253 g 340 Y May 2019 449ebay.com
9.
 
Olympus TG-5 113 mm 66 mm 32 mm 250 g 340 Y May 2017 449ebay.com
10.
 
OM System TG-7 114 mm 66 mm 33 mm 249 g 330 Y Sep 2023 549 amazon.com
11.
 
Panasonic LX100 II 115 mm 66 mm 65 mm 392 g 300 n Aug 2018 999ebay.com
12.
 
Panasonic ZS200 111 mm 65 mm 45 mm 340 g 370 n Feb 2018 799 amazon.com
13.
 
Panasonic GX85 122 mm 71 mm 44 mm 426 g 290 n Apr 2016 799 amazon.com
14.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199ebay.com
15.
 
Panasonic GX7 123 mm 71 mm 55 mm 402 g 350 n Aug 2013 999ebay.com
16.
 
Sony HX80 102 mm 58 mm 36 mm 245 g 390 n Mar 2016 349ebay.com
17.
 
Sony HX90V 102 mm 58 mm 36 mm 245 g 360 n Apr 2015 429ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will obviously take relative prices into account. 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 GX9, despite having a lens built in. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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-4 features a 1/2.3-inch sensor and the Panasonic GX9 a Four Thirds sensor. The sensor area in the GX9 is 704 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Olympus TG-4 and Panasonic GX9 sensor measures

With 20.2MP, the GX9 offers a higher resolution than the TG-4 (15.9MP), but the GX9 nevertheless has larger individual pixels (pixel pitch of 3.34μm versus 1.33μm for the TG-4) due to its larger sensor. Moreover, the GX9 is a much more recent model (by 2 years and 10 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 GX9 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Panasonic GX9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GX9 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 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 Olympus Tough TG-4 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Panasonic Lumix DC-GX9 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

In terms of underlying technology, the TG-4 is build around a BSI-CMOS sensor, while the GX9 uses a CMOS imager. 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-4 versus GX9 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
# image 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.
 
Panasonic GX9 Four Thirds 20.2 5184 38884K/30p23.112.8116374
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 XP130 1/2.3 15.9 4608 34561080/60p20.612.1100051
6.
 
Fujifilm XP120 1/2.3 15.9 4608 34561080/60p20.511.990049
7.
 
Nikon W300 1/2.3 15.9 4608 34564K/30p20.512.093850
8.
 
Olympus TG-6 1/2.3 12.0 4000 30004K/30p20.712.2112752
9.
 
Olympus TG-5 1/2.3 12.0 4000 30004K/30p20.511.993450
10.
 
OM System TG-7 1/2.3 12.0 4000 30004K/30p20.912.7155354
11.
 
Panasonic LX100 II Four Thirds 16.8 4736 35524K/30p22.812.797972
12.
 
Panasonic ZS200 1-inch 20.0 5472 36484K/30p22.012.244964
13.
 
Panasonic GX85 Four Thirds 15.8 4592 34484K/30p22.912.666271
14.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
15.
 
Panasonic GX7 Four Thirds 15.8 4592 34481080/60p22.612.271870
16.
 
Sony HX80 1/2.3 18.0 4896 36721080/60p20.411.882248
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.
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Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the GX9 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 variety of features. For example, the GX9 has an electronic viewfinder (2760k 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 Panasonic GX9, and comparable cameras.

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Core Features
# image 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.
 
Panasonic GX92760 n3.0 / 1240 tilting Y 1/4000s 9.0/s Y 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 XP130none n3.0 / 920 fixed n 1/2000s 10.0/s Y Y
6.
 
Fujifilm XP120none n3.0 / 920 fixed n 1/2000s 10.0/s Y Y
7.
 
Nikon W300none n3.0 / 921 fixed n 1/4000s 7.0/s Y Y
8.
 
Olympus TG-6none n3.0 / 1040 fixed n 1/2000s 20.0/s Y Y
9.
 
Olympus TG-5none n3.0 / 460 fixed n 1/2000s 20.0/s Y Y
10.
 
OM System TG-7none n3.0 / 1040 fixed n 1/2000s 20.0/s Y Y
11.
 
Panasonic LX100 II2764 n3.0 / 1240 fixed Y 1/4000s 11.0/s n Y
12.
 
Panasonic ZS2002330 n3.0 / 1240 fixed Y 1/2000s 10.0/s Y Y
13.
 
Panasonic GX852765 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
14.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
15.
 
Panasonic GX72760 n3.0 / 1040 tilting Y 1/8000s 5.0/s Y Y
16.
 
Sony HX80638 n3.0 / 922 tilting n 1/2000s 10.0/s Y Y
17.
 
Sony HX90V638 n3.0 / 921 tilting n 1/2000s 10.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GX9 has a touchscreen, while the TG-4 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 GX9 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 Panasonic GX9 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 GX9 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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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 Panasonic Lumix DC-GX9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image 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.
 
Panasonic GX9Ystereo / mono--micro2.0Y-Y
3.
 
Canon SX700-stereo / mono--micro2.0YY-
4.
 
Fujifilm XP140-mono / mono--micro2.0Y-Y
5.
 
Fujifilm XP130-mono / mono--micro2.0Y-Y
6.
 
Fujifilm XP120-mono / mono--micro2.0Y--
7.
 
Nikon W300-stereo / mono--micro2.0Y-Y
8.
 
Olympus TG-6-stereo / mono--micro2.0Y--
9.
 
Olympus TG-5-stereo / mono--micro2.0Y--
10.
 
OM System TG-7-stereo / mono--micro2.0Y--
11.
 
Panasonic LX100 IIYstereo / mono--micro2.0Y-Y
12.
 
Panasonic ZS200-stereo / mono--micro2.0Y-Y
13.
 
Panasonic GX85Ystereo / mono--micro2.0Y--
14.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-
15.
 
Panasonic GX7Ystereo / mono--mini2.0YY-
16.
 
Sony HX80-stereo / mono--micro2.0YY-
17.
 
Sony HX90V-stereo / mono--micro2.0YY-
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It is notable that the GX9 has a hotshoe, which makes it possible to easily attach optional accessories, such as an external flash gun. The TG-4 does not feature such an accessory-socket.

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 GX9 have been discontinued, but can regularly be found used on ebay. The TG-4 was replaced by the Olympus TG-5, while the GX9 does not have a direct successor. Further information on the features and operation of the TG-4 and GX9 can be found, respectively, in the Olympus TG-4 Manual (free pdf) or the online Panasonic GX9 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Olympus TG-4 or the Panasonic GX9 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Reasons to prefer 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 GX9 requires a separate lens.
  • More compact: Is smaller (112x66mm vs 124x72mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the GX9).
  • Longer lasting: Can take more shots (380 versus 260) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 15m).
  • 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 Panasonic Lumix DC-GX9:

  • More detail: Has more megapixels (20.2 vs 15.9MP), which boosts linear resolution by 13%.
  • 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 definition movie capture (4K/30p vs 1080/30p).
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1240k 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 (1/4000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (9 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.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 2 years and 10 months of technical progress since the TG-4 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the GX9 is the clear winner of the contest (18 : 10 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 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 10:18 GX9

How about other alternatives? Do the specifications of the Olympus TG-4 and the Panasonic GX9 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 technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the TG-4 and the GX9 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 where reviews by experts come in. 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
# image  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 379ebay.com
2.
 
Panasonic GX94/5+4/584/1004.5/54.5/5 Feb 2018 849ebay.com
3.
 
Canon SX700..+ +....4/54/5 Feb 2014 349ebay.com
4.
 
Fujifilm XP140..+....3.5/54/5 Feb 2019 229ebay.com
5.
 
Fujifilm XP130..o....3.5/54/5 Jan 2018 229ebay.com
6.
 
Fujifilm XP120..o....3.5/54/5 Jan 2017 229ebay.com
7.
 
Nikon W300..+....4/54/5 May 2017 389ebay.com
8.
 
Olympus TG-64/5+ +4.5/576/1004/54/5 May 2019 449ebay.com
9.
 
Olympus TG-5..+ +4.5/5..4/54/5 May 2017 449ebay.com
10.
 
OM System TG-74/5..4.5/5..4/54/5 Sep 2023 549 amazon.com
11.
 
Panasonic LX100 II4.5/5+4.2/582/1004.5/54.5/5 Aug 2018 999ebay.com
12.
 
Panasonic ZS200..+ +4.5/581/1004.5/54.5/5 Feb 2018 799 amazon.com
13.
 
Panasonic GX854.5/5+ +..82/1005/55/5 Apr 2016 799 amazon.com
14.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 1,199ebay.com
15.
 
Panasonic GX74/5+..79/1005/55/5 Aug 2013 999ebay.com
16.
 
Sony HX80............ Mar 2016 349ebay.com
17.
 
Sony HX90V4/5+ +....4/54.5/5 Apr 2015 429ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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. 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 Panasonic GX9

    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 Panasonic GX9
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 25-100mm f/2.0-4.9 Micro Four Thirds lenses
    Launch Date April 2015 February 2018
    Launch Price USD 379 USD 849
    Sensor Specs Olympus TG-4 Panasonic GX9
    Sensor Technology BSI-CMOS CMOS
    Sensor Format 1/2.3" Sensor Four Thirds Sensor
    Sensor Size 6.17 x 4.55 mm 17.3 x 13.0 mm
    Sensor Area 28.0735 mm2 224.9 mm2
    Sensor Diagonal 7.7 mm 21.6 mm
    Crop Factor 5.6x 2.0x
    Sensor Resolution 15.9 Megapixels 20.2 Megapixels
    Image Resolution 4608 x 3456 pixels 5184 x 3888 pixels
    Pixel Pitch 1.33 μm 3.34 μm
    Pixel Density 56.73 MP/cm2 8.96 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/30p Video 4K/30p Video
    ISO Setting 100 - 6,400 ISO 200 - 25,600 ISO
    ISO Boost no Enhancement 100 - 25,600 ISO
    Image Processor TruePic VII Venus
    Screen Specs Olympus TG-4 Panasonic GX9
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.70x
    Viewfinder Resolution 2760k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 460k dots 1240k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus TG-4 Panasonic GX9
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/4000s
    Continuous Shooting 5 shutter flaps/s 9 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Olympus TG-4 Panasonic GX9
    External Flash no Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    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-4 Panasonic GX9
    Environmental SealingWaterproof body (15m)not weather sealed
    Battery Type Olympus LI-92B Panasonic DMW-BLG10
    Battery Life (CIPA)380 shots per charge260 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)
    124 x 72 x 47 mm
    (4.9 x 2.8 x 1.9 in)
    Camera Weight 247 g (8.7 oz) 407 g (14.4 oz)
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    Check TG-4 offers at
    ebay.com
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    Check GX9 offers at
    ebay.com

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