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Sony A77 II vs RX10 IV

The Sony Alpha SLT-A77 II and the Sony Cyber-shot DSC-RX10 IV are two enthusiast cameras that were revealed to the public, respectively, in May 2014 and September 2017. The A77 II is a DSLR, while the RX10 IV is a fixed lens compact. The cameras are based on an APS-C (A77 II) and an one-inch (RX10 IV) sensor. The A77 II has a resolution of 24 megapixels, whereas the RX10 IV provides 20 MP.

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

Headline Specifications
Sony A77 II
versus
Sony RX10 IV
Sony A77 II   Sony RX10 IV
Digital single lens reflex Fixed lens compact camera
Sony A mount lenses 24-600mm f/2.4-4.0
24 MP – APS-C sensor 20 MP – 1" sensor
1080/60p Video 4K/30p Video
ISO 100-25,600 (50 - 51,200) ISO 100-12,800 (64 - 25,600)
Electronic viewfinder (2359k dots) Electronic viewfinder (2359k dots)
3.0" LCD – 1229k dots 3.0" LCD – 1440k dots
Fully flexible screen (no touchscreen) Tilting touchscreen
12 shutter flaps per second 24 shutter flaps per second
In-body stabilizationLens-based stabilization
Weathersealed bodyWeathersealed body
480 shots per battery charge400 shots per battery charge
143 x 104 x 81 mm, 647 g 133 x 94 x 145 mm, 1095 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha SLT-A77 II and the Sony Cyber-shot DSC-RX10 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.

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Body comparison

The physical size and weight of the Sony A77 II and the Sony RX10 IV 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 dimensions are rounded to the nearest millimeter.

Size Sony A77 II vs Sony RX10 IV
Compare A77 II versus RX10 IV top
Comparison A77 II or RX10 IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX10 IV is notably smaller (16 percent) than the Sony A77 II. 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.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX10 IV has a lens built in, whereas the A77 II is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the A77 II gets 480 shots out of its Sony NP-FM500H battery, while the RX10 IV can take 400 images on a single charge of its Sony NP-FW50 power pack. The power pack in the RX10 IV can be charged via the USB port, 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. 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.

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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.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 1,199ebay.com
2.
 
Sony RX10 IV 133 mm 94 mm 145 mm 1095 g 400 Y Sep 2017 1,699 amazon.com
3.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 1,199ebay.com
4.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 1,199ebay.com
5.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 1,099ebay.com
6.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299ebay.com
7.
 
Sony A6600 120 mm 67 mm 69 mm 503 g 810 Y Aug 2019 1,399 amazon.com
8.
 
Sony RX100 VI 102 mm 58 mm 43 mm 301 g 240 n Jun 2018 1,199ebay.com
9.
 
Sony A6500 120 mm 67 mm 53 mm 453 g 350 Y Oct 2016 1,399ebay.com
10.
 
Sony RX10 III 133 mm 94 mm 127 mm 1051 g 420 Y Mar 2016 1,499ebay.com
11.
 
Sony RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 999ebay.com
12.
 
Sony RX10 II 129 mm 88 mm 102 mm 813 g 400 Y Jun 2015 1,299ebay.com
13.
 
Sony A68 143 mm 104 mm 81 mm 610 g 540 n Nov 2015 699ebay.com
14.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
15.
 
Sony A58 129 mm 95 mm 78 mm 492 g 690 n Feb 2013 599ebay.com
16.
 
Sony RX10 129 mm 88 mm 102 mm 813 g 420 Y Oct 2013 1,299ebay.com
17.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399ebay.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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The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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.

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 generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Sony A77 II features an APS-C sensor and the Sony RX10 IV an one-inch sensor. The sensor area in the RX10 IV is 68 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony A77 II and Sony RX10 IV sensor measures

With 24MP, the A77 II offers a higher resolution than the RX10 IV (20MP), but the A77 II nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 2.41μm for the RX10 IV) due to its larger sensor. However, the RX10 IV is a much more recent model (by 3 years and 4 months) than the A77 II, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Sony A77 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 II for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Sony RX10 IV are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 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 Alpha SLT-A77 II has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-51200. The corresponding ISO settings for the Sony Cyber-shot DSC-RX10 IV are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 64-25600.

In terms of underlying technology, the A77 II is build around a CMOS sensor, while the RX10 IV uses a BSI-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.

A77 II versus RX10 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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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.
 
Sony A77 II APS-C 24.0 6000 40001080/60p24.413.4101382
2.
 
Sony RX10 IV 1-inch 20.0 5472 36484K/30p22.012.240863
3.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
4.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683
5.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
6.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
7.
 
Sony A6600 APS-C 24.0 6000 40004K/30p23.813.4149782
8.
 
Sony RX100 VI 1-inch 20.0 5472 36484K/30p22.112.347864
9.
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585
10.
 
Sony RX10 III 1-inch 20.0 5472 36484K/30p23.112.647270
11.
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
12.
 
Sony RX10 II 1-inch 20.0 5472 36484K/30p23.012.653170
13.
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.570179
14.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
15.
 
Sony A58 APS-C 19.8 5456 36321080/60i23.312.575374
16.
 
Sony RX10 1-inch 20.0 5472 36481080/60p22.912.647469
17.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
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 RX10 IV provides a better video resolution than the A77 II. It can shoot movie footage at 4K/30p, while the A77 II is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The A77 II and the RX10 IV are similar in the sense that both feature an electronic viewfinder, which is helpful when framing images in bright sunlight. Moreover, their viewfinders offer an identical resolution of 2359k dots. The following table reports on some other key feature differences and similarities of the Sony A77 II, the Sony RX10 IV, 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.
 
Sony A77 II2359 Y3.0 / 1229 full-flex n 1/8000s 12.0/s Y Y
2.
 
Sony RX10 IV2359 Y3.0 / 1440 tilting Y 1/2000s 24.0/s Y Y
3.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
4.
 
Nikon D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
5.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
6.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
7.
 
Sony A66002359 n3.0 / 922 tilting Y 1/4000s 11.0/s n Y
8.
 
Sony RX100 VI2359 n3.0 / 1229 tilting Y 1/2000s 24.0/s Y Y
9.
 
Sony A65002359 n3.0 / 922 tilting Y 1/4000s 11.0/s Y Y
10.
 
Sony RX10 III2359 Y3.0 / 1229 tilting n 1/2000s 14.0/s Y Y
11.
 
Sony RX100 V2359 n3.0 / 1229 tilting n 1/2000s 24.0/s Y Y
12.
 
Sony RX10 II2359 Y3.0 / 1229 tilting n 1/3200s 14.0/s Y Y
13.
 
Sony A681440 Y2.7 / 460 tilting n 1/4000s 8.0/s Y Y
14.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
15.
 
Sony A581440 n2.7 / 460 tilting n 1/4000s 5.0/s Y Y
16.
 
Sony RX101440 Y3.0 / 1229 tilting n 1/3200s 10.0/s Y Y
17.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/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 RX10 IV has a touchscreen, while the A77 II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The A77 II has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping 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).

Concerning the storage of imaging data, both the A77 II and the RX10 IV 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.

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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 Sony Alpha SLT-A77 II and Sony Cyber-shot DSC-RX10 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
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony A77 IIYstereo / monoY-mini2.0YY-
2.
 
Sony RX10 IVYstereo / monoYYmicro2.0YY-
3.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
4.
 
Nikon D7100Ystereo / monoYYmini2.0---
5.
 
Pentax K-3 IIYmono / monoYYmini3.0---
6.
 
Pentax K-3Ymono / monoYYmini3.0---
7.
 
Sony A6600Ystereo / monoYYYES2.0YYY
8.
 
Sony RX100 VI-stereo / mono--micro2.0YYY
9.
 
Sony A6500Ystereo / monoY-micro2.0YY-
10.
 
Sony RX10 IIIYstereo / monoYYmicro2.0YY-
11.
 
Sony RX100 V-stereo / mono--micro2.0YY-
12.
 
Sony RX10 IIYstereo / monoYYmicro2.0YY-
13.
 
Sony A68Ystereo / monoY-micro2.0---
14.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
15.
 
Sony A58Ystereo / monoY-mini2.0---
16.
 
Sony RX10Ystereo / monoYYmicro2.0YY-
17.
 
Sony A77Ystereo / monoY-mini2.0---
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Studio photographers will appreciate that the Sony A77 II (unlike the RX10 IV) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The RX10 IV is a recent model that features in the current product line-up of Sony. In contrast, the A77 II has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the A77 II from Sony. Further information on the features and operation of the A77 II and RX10 IV can be found, respectively, in the Sony A77 II Manual (free pdf) or the online Sony RX10 IV Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Sony A77 II or the Sony RX10 IV – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.


Arguments in favor of the Sony Alpha SLT-A77 II:

  • More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.73x vs 0.70x).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • 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.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • Longer lasting: Can take more shots (480 versus 400) on a single battery charge.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been available for much longer (launched in May 2014).


Reasons to prefer the Sony Cyber-shot DSC-RX10 IV:

  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1229k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (24 vs 12 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Ready to shoot: Comes with an integrated lens, while the A77 II requires a separate lens.
  • More compact: Is smaller (133x94mm vs 143x104mm) and will fit more readily into a bag.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More modern: Reflects 3 years and 4 months of technical progress since the A77 II launch.

If the count of relative strengths (bullet points above) is taken as a measure, the RX10 IV emerges as the winner of the match-up (11 : 9 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 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.

A77 II 09:11 RX10 IV

How about other alternatives? Do the specifications of the Sony A77 II and the Sony RX10 IV place the cameras among the top in their class? Find out in the latest Best DSLR 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 remains incomplete and does no justice, for example, to the way the A77 II or the RX10 IV perform in practice. 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 where reviews by experts come in. 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A77 II4/5....80/1004.5/55/5 May 2014 1,199ebay.com
2.
 
Sony RX10 IV5/5+3.5/584/1004.5/55/5 Sep 2017 1,699 amazon.com
3.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 1,199ebay.com
4.
 
Nikon D71005/5+ +..85/1004.5/54.5/5 Feb 2013 1,199ebay.com
5.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 1,099ebay.com
6.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299ebay.com
7.
 
Sony A66004/5+4/583/1004.5/54/5 Aug 2019 1,399 amazon.com
8.
 
Sony RX100 VI4.5/5+ +..83/1004/54.5/5 Jun 2018 1,199ebay.com
9.
 
Sony A65005/5+ +3.5/585/1004.5/54.5/5 Oct 2016 1,399ebay.com
10.
 
Sony RX10 III5/5+..84/1004.5/54.5/5 Mar 2016 1,499ebay.com
11.
 
Sony RX100 V4.5/5+ +..83/1004/54.5/5 Oct 2016 999ebay.com
12.
 
Sony RX10 II5/5+ +..82/1004.5/54/5 Jun 2015 1,299ebay.com
13.
 
Sony A683/5......4/54/5 Nov 2015 699ebay.com
14.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
15.
 
Sony A583/5......4.5/54.5/5 Feb 2013 599ebay.com
16.
 
Sony RX105/5+..80/1004.5/54.5/5 Oct 2013 1,299ebay.com
17.
 
Sony A775/591/100..81/100..5/5 Aug 2011 1,399ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Sony A77 II vs Sony RX10 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 Sony A77 II Sony RX10 IV
    Camera Type Digital single lens reflex Fixed lens compact camera
    Camera Lens Sony A mount lenses 24-600mm f/2.4-4.0
    Launch Date May 2014 September 2017
    Launch Price USD 1,199 USD 1,699
    Sensor Specs Sony A77 II Sony RX10 IV
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor 1" Sensor
    Sensor Size 23.5 x 15.6 mm 13.2 x 8.8 mm
    Sensor Area 366.6 mm2 116.16 mm2
    Sensor Diagonal 28.2 mm 15.9 mm
    Crop Factor 1.5x 2.7x
    Sensor Resolution 24 Megapixels 20 Megapixels
    Image Resolution 6000 x 4000 pixels 5472 x 3648 pixels
    Pixel Pitch 3.91 μm 2.41 μm
    Pixel Density 6.55 MP/cm2 17.18 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 100 - 25,600 ISO 100 - 12,800 ISO
    ISO Boost 50 - 51,200 ISO 64 - 25,600 ISO
    Image Processor BIONZ X BIONZ X
    DXO Sensor Quality (score) 82 ..
    DXO Color Depth (bits) 24.4 ..
    DXO Dynamic Range (EV) 13.4 ..
    DXO Low Light (ISO) 1013 ..
    Screen Specs Sony A77 II Sony RX10 IV
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.73x 0.70x
    Viewfinder Resolution 2359k dots 2359k dots
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1229k dots 1440k dots
    LCD Attachment Fully flexible screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Sony A77 II Sony RX10 IV
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/2000s
    Continuous Shooting 12 shutter flaps/s 24 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/32000s
    Image StabilizationIn-body stabilizationLens-based stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium MS or SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Sony A77 II Sony RX10 IV
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in NFC built-in
    Body Specs Sony A77 II Sony RX10 IV
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Sony NP-FM500H Sony NP-FW50
    Battery Life (CIPA)480 shots per charge400 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    133 x 94 x 145 mm
    (5.2 x 3.7 x 5.7 in)
    Camera Weight 647 g (22.8 oz) 1095 g (38.6 oz)
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    Check RX10 IV price at
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