Panasonic GX800 vs Sony HX99
The Panasonic Lumix DMC-GX800 (called Panasonic GX850 in some regions) and the Sony Cyber-shot DSC-HX99 are two digital cameras that were officially introduced, respectively, in January 2017 and August 2018. The GX800 is a mirrorless interchangeable lens camera, while the HX99 is a fixed lens compact. The cameras are based on a Four Thirds (GX800) and a 1/2.3-inch (HX99) sensor. The Panasonic has a resolution of 15.8 megapixels, whereas the Sony provides 18 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-GX800 and the Sony Cyber-shot DSC-HX99? 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.
An illustration of the physical size and weight of the Panasonic GX800 and the Sony HX99 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 measures are rounded to the nearest millimeter.
The GX800 can be obtained in three different colors (black, silver, red), while the HX99 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony HX99 is notably smaller (15 percent) than the Panasonic GX800. In this context, it is worth noting that neither the GX800 nor the HX99 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the HX99 has a lens built in, whereas the GX800 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 GX800 and their specifications in the Micro Four Thirds Lens Catalog.
Concerning battery life, the GX800 gets 210 shots out of its DMW-BLH7 battery, while the HX99 can take 370 images on a single charge of its NP-BX1 power pack. The power pack in the HX99 can be charged via the USB port, 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. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Panasonic GX800||107 mm||65 mm||33 mm||269 g||210||n||Jan 2017||549|
|2.||Sony HX99||102 mm||58 mm||36 mm||242 g||370||n||Aug 2018||449|
|3.||Canon M100||108 mm||67 mm||35 mm||302 g||295||n||Aug 2017||499|
|4.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399|
|5.||Canon M10||108 mm||67 mm||35 mm||301 g||255||n||Oct 2015||499|
|6.||Panasonic GX80||122 mm||71 mm||44 mm||426 g||290||n||Apr 2016||799|
|7.||Panasonic G7||125 mm||86 mm||77 mm||410 g||350||n||May 2015||649|
|8.||Panasonic GF7||107 mm||65 mm||33 mm||266 g||230||n||Jan 2015||499|
|9.||Panasonic GM5||99 mm||60 mm||36 mm||211 g||220||n||Sep 2014||749|
|10.||Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599|
|11.||Panasonic GF6||111 mm||65 mm||38 mm||323 g||340||n||Apr 2013||499|
|12.||Panasonic GM1||99 mm||55 mm||30 mm||204 g||230||n||Oct 2013||749|
|13.||Panasonic GF5||108 mm||67 mm||37 mm||267 g||360||n||Apr 2012||499|
|14.||Sony HX95||102 mm||58 mm||36 mm||242 g||370||n||Aug 2018||429|
|15.||Sony WX800||102 mm||58 mm||36 mm||233 g||370||n||Oct 2018||399|
|16.||Sony HX90V||102 mm||58 mm||36 mm||245 g||360||n||Apr 2015||429|
|17.||Sony HX400V||130 mm||93 mm||103 mm||660 g||300||n||Feb 2014||499|
|Notes: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The HX99 was launched at a lower price than the GX800, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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. 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 Panasonic GX800 features a Four Thirds sensor and the Sony HX99 a 1/2.3-inch sensor. The sensor area in the HX99 is 88 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 5.6. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
In terms of underlying technology, both cameras are build around CMOS sensors.
Despite having a smaller sensor, the HX99 offers a higher resolution of 18 megapixels, compared with 15.8 MP of the GX800. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.25μm versus 3.77μm for the GX800). However, it should be noted that the HX99 is a somewhat more recent model (by 1 year and 7 months) than the GX800, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The resolution advantage of the Sony HX99 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the HX99 for good quality output (200 dots per inch) amounts to 24.5 x 18.4 inches or 62.2 x 46.6 cm, for very good quality (250 dpi) 19.6 x 14.7 inches or 49.7 x 37.3 cm, and for excellent quality (300 dpi) 16.3 x 12.2 inches or 41.5 x 31.1 cm. The corresponding values for the Panasonic GX800 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.
The Panasonic Lumix DMC-GX800 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Sony Cyber-shot DSC-HX99 are ISO 80 to ISO 3200, with the possibility to increase the ISO range to 80-6400.
For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|1.||Panasonic GX800||Four Thirds||15.8||4592||3448||4K/30p||23.2||13.3||586||73|
|6.||Panasonic GX80||Four Thirds||15.8||4592||3448||4K/30p||22.9||12.6||662||71|
|7.||Panasonic G7||Four Thirds||15.8||4592||3448||4K/30p||..||..||..||..|
|8.||Panasonic GF7||Four Thirds||15.8||4592||3448||1080/60p||..||..||..||..|
|9.||Panasonic GM5||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|10.||Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|11.||Panasonic GF6||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
|12.||Panasonic GM1||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66|
|13.||Panasonic GF5||Four Thirds||12.0||4000||3000||1080/60i||21.4||11.6||618||61|
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, and both provide the same movie specifications (4K/30p).
Apart from body and sensor, cameras can and do differ across a range of features. For example, the HX99 has an electronic viewfinder (638k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GX800 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Panasonic GX800 and Sony HX99 in connection with corresponding information for a sample of similar cameras.
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 GX800 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 Panasonic GX800 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 GX800 writes its imaging data to SDXC cards, while the HX99 uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 Panasonic Lumix DMC-GX800 and Sony Cyber-shot DSC-HX99 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
Both the GX800 and the HX99 are recent models that are part of the current product line-up. The GX800 replaced the earlier Panasonic GF7, while the HX99 does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic and Sony websites.
So what is the bottom line? Which of the two cameras – the Panasonic GX800 or the Sony HX99 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Panasonic Lumix DMC-GX800:
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
- More heavily discounted: Has been on the market for longer (launched in January 2017).
Advantages of the Sony Cyber-shot DSC-HX99:
- More detail: Has more megapixels (18 vs 15.8MP), which boosts linear resolution by 7%.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/2000s vs 1/500s) to freeze action.
- Ready to shoot: Has an integrated lens, whereas the GX800 necessitates an extra lens.
- More compact: Is smaller (102x58mm vs 107x65mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the GX800).
- Longer lasting: Gets more shots (370 versus 210) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Was introduced somewhat (1 year and 7 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the HX99 is the clear winner of the contest (13 : 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.
How about other alternatives? Do the specifications of the Panasonic GX800 and the Sony HX99 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Superzoom 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 GX800 and the HX99 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.
This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], 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.
|1.||Panasonic GX800||..||+||76/100||4.5/5||4.5/5||Jan 2017||549|
|2.||Sony HX99||..||..||..||4/5||4.5/5||Aug 2018||449|
|3.||Canon M100||3/5||+||..||4/5||3.5/5||Aug 2017||499|
|4.||Canon SX730||..||+||..||4/5||4/5||Apr 2017||399|
|5.||Canon M10||..||..||..||..||4/5||Oct 2015||499|
|6.||Panasonic GX80||4.5/5||+ +||82/100||5/5||5/5||Apr 2016||799|
|7.||Panasonic G7||4/5||+ +||80/100||5/5||4.5/5||May 2015||649|
|8.||Panasonic GF7||4/5||+||..||4.5/5||4.5/5||Jan 2015||499|
|9.||Panasonic GM5||3.5/5||+||77/100||5/5||4.5/5||Sep 2014||749|
|10.||Panasonic G6||4/5||+ +||..||5/5||4.5/5||Apr 2013||599|
|11.||Panasonic GF6||..||+ +||..||4.5/5||4.5/5||Apr 2013||499|
|12.||Panasonic GM1||3/5||+||78/100||5/5||4.5/5||Oct 2013||749|
|13.||Panasonic GF5||3/5||..||..||4.5/5||4.5/5||Apr 2012||499|
|14.||Sony HX95||..||..||..||..||..||Aug 2018||429|
|15.||Sony WX800||..||..||..||..||..||Oct 2018||399|
|16.||Sony HX90V||4/5||+ +||..||4/5||4.5/5||Apr 2015||429|
|17.||Sony HX400V||4/5||+ +||..||4/5||4/5||Feb 2014||499|
|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, please note that some of the review sites have changed their methodology and reporting over time.
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 your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Panasonic GX800 vs Sony HX99
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 Model||Panasonic GX800||Sony HX99|
|Camera Type||Mirrorless system camera||Fixed lens compact camera|
|Camera Lens||Micro Four Thirds lenses||24-720mm f/3.5-6.4|
|Launch Date||January 2017||August 2018|
|Launch Price||USD 549||USD 449|
|Sensor Specs||Panasonic GX800||Sony HX99|
|Sensor Format||Four Thirds Sensor||1/2.3" Sensor|
|Sensor Size||17.3 x 13.0 mm||6.17 x 4.55 mm|
|Sensor Area||224.9 mm2||28.0735 mm2|
|Sensor Diagonal||21.6 mm||7.7 mm|
|Sensor Resolution||15.8 Megapixels||18 Megapixels|
|Image Resolution||4592 x 3448 pixels||4896 x 3672 pixels|
|Pixel Pitch||3.77 μm||1.25 μm|
|Pixel Density||7.04 MP/cm2||64.04 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||4K/30p Video||4K/30p Video|
|ISO Setting||200 - 25,600 ISO||80 - 3,200 ISO|
|ISO Boost||100 - 25,600 ISO||80 - 6,400 ISO|
|Image Processor||Venus||BIONZ X|
|DXO Sensor Quality (score)||73||..|
|DXO Color Depth (bits)||23.2||..|
|DXO Dynamic Range (EV)||13.3||..|
|DXO Low Light (ISO)||586||..|
|Screen Specs||Panasonic GX800||Sony HX99|
|Viewfinder Type||no viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||638k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||922k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Shooting Specs||Panasonic GX800||Sony HX99|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||10 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||up to 1/16000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Panasonic GX800||Sony HX99|
|External Flash||no Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Panasonic GX800||Sony HX99|
|Battery Life (CIPA)||210 shots per charge||370 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
107 x 65 x 33 mm
(4.2 x 2.6 x 1.3 in)
102 x 58 x 36 mm
(4.0 x 2.3 x 1.4 in)
|Camera Weight||269 g (9.5 oz)||242 g (8.5 oz)|
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