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Sony RX10 IV vs HX99

The Sony Cyber-shot DSC-RX10 IV and the Sony Cyber-shot DSC-HX99 are two digital cameras that were officially introduced, respectively, in September 2017 and August 2018. Both the RX10 IV and the HX99 are fixed lens compact cameras that are based on an one-inch (RX10 IV) and a 1/2.3-inch (HX99) sensor. The RX10 IV has a resolution of 20 megapixels, whereas the HX99 provides 18 MP.

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

Headline Specifications
Sony RX10 IV   Sony HX99
Sony RX10 IV Sony HX99
Fixed lens compact camera Fixed lens compact camera
24-600mm f/2.4-4.0 24-720mm f/3.5-6.4
20 MP, 1" Sensor 18 MP, 1/2.3" Sensor
4K/30p Video 4K/30p Video
ISO 100-12800 (64-25600) ISO 80-3200 (80-6400)
Electronic viewfinder (2359k dots) Electronic viewfinder (638k dots)
3.0" LCD, 1440k dots 3.0" LCD, 922k dots
Tilting touchscreen Tilting touchscreen
24 shutter flaps per second 10 shutter flaps per second
Weathersealed bodyNot weather sealed
400 shots per battery charge370 shots per battery charge
133 x 94 x 145 mm, 1095 g 102 x 58 x 36 mm, 242 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Cyber-shot DSC-RX10 IV 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.

Body comparison

The physical size and weight of the Sony RX10 IV and the Sony HX99 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Sony RX10 IV vs Sony HX99
Compare RX10 IV versus HX99 top
Comparison RX10 IV or HX99 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony HX99 is considerably smaller (53 percent) than the Sony RX10 IV. Moreover, the HX99 is substantially lighter (78 percent) than the RX10 IV. It is worth mentioning in this context that the RX10 IV is splash and dust resistant, while the HX99 does not feature any corresponding weather-sealing.

Concerning battery life, the RX10 IV gets 400 shots out of its NP-FW50 battery, while the HX99 can take 370 images on a single charge of its NP-BX1 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Sony RX10 IV» 5.2 in 3.7 in 5.7 in 38.6 oz 400 Y Sep 2017 1,699 i i Sony RX10 IV
 
Sony HX99« 4.0 in 2.3 in 1.4 in 8.5 oz 370 n Aug 2018 449 i i Sony HX99
 
Canon G1 X Mark III« » 4.5 in 3.1 in 2.0 in 14.1 oz 200 Y Oct 2017 1,299 i i Canon G1 X Mark III
 
Canon SX730« » 4.3 in 2.5 in 1.6 in 10.6 oz 250 n Apr 2017 399- i Canon SX730
 
Fujifilm X-Pro2« » 5.6 in 3.3 in 1.8 in 17.5 oz 350 Y Jan 2016 1,699 i i Fujifilm X-Pro2
 
Panasonic FZ2500« » 5.4 in 4.0 in 5.3 in 32.3 oz 350 n Sep 2016 1,199 i i Panasonic FZ2500
 
Sony RX100 VI« » 4.0 in 2.3 in 1.7 in 10.6 oz 240 n Jun 2018 1,199- i Sony RX100 VI
 
Sony HX95« » 4.0 in 2.3 in 1.4 in 8.5 oz 370 n Aug 2018 429 i i Sony HX95
 
Sony WX800« » 4.0 in 2.3 in 1.4 in 8.2 oz 370 n Oct 2018 399 i i Sony WX800
 
Sony RX0« » 2.3 in 1.6 in 1.2 in 3.9 oz 240 Y Aug 2017 699- i Sony RX0
 
Sony A6300« » 4.7 in 2.6 in 1.9 in 14.3 oz 400 Y Feb 2016 999- i Sony A6300
 
Sony RX10 III« » 5.2 in 3.7 in 5.0 in 37.1 oz 420 Y Mar 2016 1,499 i i Sony RX10 III
 
Sony RX100 V« » 4.0 in 2.3 in 1.6 in 10.5 oz 220 n Oct 2016 999 i i Sony RX100 V
 
Sony RX10 II« » 5.1 in 3.5 in 4.0 in 28.7 oz 400 Y Jun 2015 1,299- i Sony RX10 II
 
Sony HX90V« » 4.0 in 2.3 in 1.4 in 8.6 oz 360 n Apr 2015 429 i i Sony HX90V
 
Sony HX400V« » 5.1 in 3.7 in 4.1 in 23.3 oz 300 n Feb 2014 499 i i Sony HX400V
 
Sony RX10« » 5.1 in 3.5 in 4.0 in 28.7 oz 420 Y Oct 2013 1,299- i Sony RX10
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The HX99 was launched at a markedly lower price (by 74 percent) than the RX10 IV, which puts it into a different market segment. 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.

 

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Sony RX10 IV features an one-inch sensor and the Sony HX99 a 1/2.3-inch sensor. The sensor area in the HX99 is 76 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 5.6. The sensor in the RX10 IV has a native 3:2 aspect ratio, while the one in the HX99 offers a 4:3 aspect.

Sony RX10 IV and Sony HX99 sensor measures

With 20MP, the RX10 IV offers a higher resolution than the HX99 (18MP), but the RX10 IV nevertheless has larger individual pixels (pixel pitch of 2.41μm versus 1.25μm for the HX99) due to its larger sensor. However, the HX99 is a somewhat more recent model (by 11 months) than the RX10 IV, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the HX99 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony RX10 IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the RX10 IV for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inch or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inch or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inch or 46.3 x 30.9 cm. The corresponding values for the Sony HX99 are 24.5 x 18.4 inch or 62.2 x 46.6 cm for good quality, 19.6 x 14.7 inch or 49.7 x 37.3 cm for very good quality, and 16.3 x 12.2 inch or 41.5 x 31.1 cm for excellent quality prints.

The RX10 IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Sony Cyber-shot DSC-RX10 IV has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 64-25600. 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.

RX10 IV versus HX99 MP

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.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Sony RX10 IV» 1-inch 20.0 5472 36484K/30p----Sony RX10 IV
 
Sony HX99« 1/2.3 18.0 4896 36724K/30p----Sony HX99
 
Canon G1 X Mark III« » APS-C 24.0 6000 40001080/60p----Canon G1 X Mark III
 
Canon SX730« » 1/2.3 20.2 5184 38881080/60p----Canon SX730
 
Fujifilm X-Pro2« » APS-C 24.0 6000 40001080/60p----Fujifilm X-Pro2
 
Panasonic FZ2500« » 1-inch 20.0 5472 36484K/30p----Panasonic FZ2500
 
Sony RX100 VI« » 1-inch 20.0 5472 36484K/30p----Sony RX100 VI
 
Sony HX95« » 1/2.3 18.0 4896 36724K/30p----Sony HX95
 
Sony WX800« » 1/2.3 18.0 4896 36724K/30p----Sony WX800
 
Sony RX0« » 1-inch 15.4 4800 32001080/60p22.412.454868Sony RX0
 
Sony A6300« » APS-C 24.0 6000 40004K/30p24.413.7143785Sony A6300
 
Sony RX10 III« » 1-inch 20.0 5472 36484K/30p23.112.647270Sony RX10 III
 
Sony RX100 V« » 1-inch 20.0 5472 36484K/30p22.812.458670Sony RX100 V
 
Sony RX10 II« » 1-inch 20.0 5472 36484K/30p23.012.653170Sony RX10 II
 
Sony HX90V« » 1/2.3 18.0 4896 36721080/60p----Sony HX90V
 
Sony HX400V« » 1/2.3 20.2 5184 38881080/60p----Sony HX400V
 
Sony RX10« » 1-inch 20.0 5472 36481080/60p22.912.647469Sony RX10

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).

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the RX10 IV offers a substantially higher resolution than the one in the HX99 (2359k vs 638k dots). The adjacent table lists some of the other core features of the Sony RX10 IV and Sony HX99 along with similar information for a selection of comparators.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Sony RX10 IV»2359 Y 3.0 1440 tilting Y 1/2000s 24.0 Y Y Sony RX10 IV
 
Sony HX99«638 n 3.0 922 tilting Y 1/2000s 10.0 Y Y Sony HX99
 
Canon G1 X Mark III« »2360 n 3.0 1040 swivel Y 1/2000s 9.0 Y Y Canon G1 X Mark III
 
Canon SX730« »- n 3.0 922 tilting n 1/3200s 5.9 Y Y Canon SX730
 
Fujifilm X-Pro2« »2360 n 3.0 1620 fixed n 1/8000s 8.0 n n Fujifilm X-Pro2
 
Panasonic FZ2500« »2360 n 3.0 1040 swivel Y 1/4000s 12.0 Y Y Panasonic FZ2500
 
Sony RX100 VI« »2359 n 3.0 1229 tilting Y 1/2000s 24.0 Y Y Sony RX100 VI
 
Sony HX95« »638 n 3.0 922 tilting n 1/2000s 10.0 Y Y Sony HX95
 
Sony WX800« »- n 3.0 922 tilting Y 1/2000s 10.0 Y Y Sony WX800
 
Sony RX0« »- n 1.5 230 fixed n .. 5.5 n n Sony RX0
 
Sony A6300« »2359 n 3.0 922 tilting n 1/4000s 11.0 Y n Sony A6300
 
Sony RX10 III« »2359 Y 3.0 1229 tilting n 1/2000s 14.0 Y Y Sony RX10 III
 
Sony RX100 V« »2359 n 3.0 1229 tilting n 1/2000s 24.0 Y Y Sony RX100 V
 
Sony RX10 II« »2359 Y 3.0 1229 tilting n 1/3200s 14.0 Y Y Sony RX10 II
 
Sony HX90V« »638 n 3.0 921 tilting n 1/2000s 10.0 Y Y Sony HX90V
 
Sony HX400V« »210 n 3.0 921 tilting n 1/4000s 10.0 Y Y Sony HX400V
 
Sony RX10« »1440 Y 3.0 1229 tilting n 1/3200s 10.0 Y Y Sony RX10

One feature that is present on the RX10 IV, but is missing on the HX99 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The HX99 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 RX10 IV 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 RX10 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).

Both the RX10 IV and the HX99 have zoom lenses built in. The RX10 IV has a 24-600mm f/2.4-4.0 optic and the HX99 offers a 24-720mm f/3.5-6.4 (focal lengths in full frame equivalent terms). Hence, the RX10 IV and HX99 provide the same view at the wide-angle end, but the HX99 has more tele-photo reach at the long end. The RX10 IV offers the faster maximum aperture.

Concerning the storage of imaging data, both the RX10 IV and the HX99 write their files to 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.

 

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 Sony Cyber-shot DSC-RX10 IV and Sony Cyber-shot DSC-HX99 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Sony RX10 IV»YstereomonoYYmicro2.0YY-Sony RX10 IV
 
Sony HX99«-stereomono--micro2.0YYYSony HX99
 
Canon G1 X Mark III« »Ystereomono--micro2.0YYYCanon G1 X Mark III
 
Canon SX730« »-stereomono--micro2.0YYYCanon SX730
 
Fujifilm X-Pro2« »YstereomonoY-micro2.0Y--Fujifilm X-Pro2
 
Panasonic FZ2500« »YstereomonoYYmicro2.0Y--Panasonic FZ2500
 
Sony RX100 VI« »-stereomono--micro2.0YYYSony RX100 VI
 
Sony HX95« »-stereomono--micro2.0YYYSony HX95
 
Sony WX800« »-stereomono--micro2.0YY-Sony WX800
 
Sony RX0« »-stereomonoY-micro2.0Y-YSony RX0
 
Sony A6300« »YstereomonoY-micro2.0YY-Sony A6300
 
Sony RX10 III« »YstereomonoYYmicro2.0YY-Sony RX10 III
 
Sony RX100 V« »-stereomono--micro2.0YY-Sony RX100 V
 
Sony RX10 II« »YstereomonoYYmicro2.0YY-Sony RX10 II
 
Sony HX90V« »-stereomono--micro2.0YY-Sony HX90V
 
Sony HX400V« »Ystereomono--micro2.0YY-Sony HX400V
 
Sony RX10« »YstereomonoYYmicro2.0YY-Sony RX10

It is notable that the RX10 IV has a hotshoe, while the HX99 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Both the RX10 IV and the HX99 are recent models that are part of the current product line-up. The RX10 IV replaced the earlier Sony RX10 III, 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 Sony website.


Review summary

So what is the bottom line? Which of the two cameras – the Sony RX10 IV 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.


Arguments in favor of the Sony Cyber-shot DSC-RX10 IV:

  • More detail: Offers more megapixels (20 vs 18MP) with a 7% higher linear resolution.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • 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.
  • 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.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (2359k vs 638k dots).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 922k dots).
  • Faster burst: Shoots at higher frequency (24 vs 10 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Better light gathering: Has a lens with a wider maximum aperture (f/2.4 vs f/3.5).
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • More heavily discounted: Has been on the market for longer (launched in September 2017).


Advantages of the Sony Cyber-shot DSC-HX99:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
  • More compact: Is smaller (102x58mm vs 133x94mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 853g or 78 percent) and is thus easier to take along.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced into a lower priced category (74 percent cheaper at launch).
  • More modern: Was introduced somewhat (11 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the RX10 IV is the clear winner of the match-up (18 : 8 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.

RX10 IV 18:08 HX99

How about other alternatives? Do the specifications of the Sony RX10 IV and the Sony HX99 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera listing 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 RX10 IV 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.

Expert reviews

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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Sony RX10 IV»+84/1004.5/5-5/5 Sep 2017 1,699 i i Sony RX10 IV
 
Sony HX99«--4/5-4.5/5 Aug 2018 449 i i Sony HX99
 
Canon G1 X Mark III« »+79/1004.5/5-4.5/5 Oct 2017 1,299 i i Canon G1 X Mark III
 
Canon SX730« »+-4/5-4/5 Apr 2017 399- i Canon SX730
 
Fujifilm X-Pro2« »+83/1004.5/54.5/54.5/5 Jan 2016 1,699 i i Fujifilm X-Pro2
 
Panasonic FZ2500« »+82/1004.5/54.5/55/5 Sep 2016 1,199 i i Panasonic FZ2500
 
Sony RX100 VI« »+ +83/1004/5-4.5/5 Jun 2018 1,199- i Sony RX100 VI
 
Sony HX95« »----- Aug 2018 429 i i Sony HX95
 
Sony WX800« »----- Oct 2018 399 i i Sony WX800
 
Sony RX0« »--3.5/5-4/5 Aug 2017 699- i Sony RX0
 
Sony A6300« »+85/1005/55/55/5 Feb 2016 999- i Sony A6300
 
Sony RX10 III« »+84/1004.5/54.5/54.5/5 Mar 2016 1,499 i i Sony RX10 III
 
Sony RX100 V« »+ +83/1004/55/54.5/5 Oct 2016 999 i i Sony RX100 V
 
Sony RX10 II« »+ +82/1004.5/54.5/54/5 Jun 2015 1,299- i Sony RX10 II
 
Sony HX90V« »+ +-4/5-4.5/5 Apr 2015 429 i i Sony HX90V
 
Sony HX400V« »+ +-4/5-4/5 Feb 2014 499 i i Sony HX400V
 
Sony RX10« »+80/1004.5/54.5/54.5/5 Oct 2013 1,299- i Sony RX10
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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Sony RX10 IV:
Check Amazon price
Sony HX99:
Check Amazon price

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.

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    Specifications: Sony RX10 IV 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 Specifications
    Camera Model Sony RX10 IV Sony HX99
    Camera Type Fixed lens compact camera Fixed lens compact camera
    Camera Lens 24-600mm f/2.4-4.0 24-720mm f/3.5-6.4
    Launch Date September 2017 August 2018
    Launch Price USD 1699 USD 449
    Sensor Specs Sony RX10 IV Sony HX99
    Sensor Technology BSI-CMOS CMOS
    Sensor Format 1" Sensor 1/2.3" Sensor
    Sensor Size 13.2 x 8.8 mm 6.17 x 4.55 mm
    Sensor Area 116.16 mm2 28.0735 mm2
    Sensor Diagonal 15.9 mm 7.7 mm
    Crop Factor 2.7x 5.6x
    Sensor Resolution 20 Megapixels 18 Megapixels
    Image Resolution 5472 x 3648 pixels 4896 x 3672 pixels
    Pixel Pitch 2.41 μm 1.25 μm
    Pixel Density 17.18 MP/cm2 64.04 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 100-12800 ISO 80-3200 ISO
    ISO Boost 64-25600 ISO 80-6400 ISO
    Image Processor BIONZ X BIONZ X
    Screen Specs Sony RX10 IV Sony HX99
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x ..x
    Viewfinder Resolution 2359k dots 638k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 1440k dots 922k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Sony RX10 IV Sony HX99
    Autofocus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingNo Peaking Feature
    Continuous Shooting 24 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterup to 1/32000sno E-Shutter
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium MS or SDXC cards MS or SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Sony RX10 IV Sony HX99
    External Flash Hotshoe no Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Sony RX10 IV Sony HX99
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type NP-FW50 NP-BX1
    Battery Life (CIPA)400 shots per charge370 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 133 x 94 x 145 mm
    (5.2 x 3.7 x 5.7 in)
    102 x 58 x 36 mm
    (4.0 x 2.3 x 1.4 in)
    Camera Weight 1095 g (38.6 oz) 242 g (8.5 oz)

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