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Sony A77 II versus Sony RX10

The Sony Alpha SLT-A77 II and the Sony Cyber-shot DSC-RX10 are two enthusiast cameras that were officially introduced, respectively, in May 2014 and October 2013. The A77 II is a DSLR, while the RX10 is a fixed lens compact. The cameras are based on an APS-C (A77 II) and an one-inch (RX10) sensor. The A77 II has a resolution of 24 megapixel, whereas the RX10 provides 20 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Sony A77 II vs Sony RX10

The side-by-side display below illustrates the physical size and weight of the Sony A77 II and the Sony RX10. 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. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the A77 II – represents 100 percent across all the size and weight measures).

Compare Sony A77 II vs Sony RX10
Compare A77 II versus RX10 top
Compare A77 II and RX10 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX10 is notably smaller (24 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 has a lens build 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 NP-FM500H battery, while the RX10 can take 420 images on a single charge of its NP-FW50 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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 A77 II» 5.6 in 4.1 in 3.2 in 22.8 oz 480 Y May 2014 1,199 i i Sony A77 II
Sony RX10« 5.1 in 3.5 in 4.0 in 28.7 oz 420 Y Oct 2013 1,299- i Sony RX10
Canon G3 X« » 4.8 in 3.0 in 4.1 in 25.9 oz 300 Y Jun 2015 999 i i Canon G3 X
Canon 70D« » 5.5 in 4.1 in 3.1 in 26.6 oz 920 Y Jul 2013 1,199- i Canon 70D
Nikon D7200« » 5.4 in 4.2 in 3.0 in 27.0 oz 1110 Y Mar 2015 1,199- i Nikon D7200
Nikon D7100« » 5.4 in 4.2 in 3.0 in 27.0 oz 950 Y Feb 2013 1,199- i Nikon D7100
Panasonic GX8« » 5.2 in 3.1 in 2.5 in 17.2 oz 330 Y Jul 2015 1,199- i Panasonic GX8
Pentax KP« » 5.2 in 4.0 in 3.0 in 24.8 oz 390 Y Jan 2017 1,099 i i Pentax KP
Pentax K-3 II« » 5.2 in 3.9 in 3.0 in 28.2 oz 720 Y Apr 2015 1,099 i i Pentax K-3 II
Pentax K-3« » 5.2 in 3.9 in 3.0 in 28.2 oz 560 Y Oct 2013 1,299- i Pentax K-3
Sony RX10 III« » 5.2 in 3.7 in 5.0 in 37.1 oz 420 Y Mar 2016 1,499- i Sony RX10 III
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 A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999- i Sony A7 II
Sony A58« » 5.1 in 3.7 in 3.1 in 17.4 oz 690 n Feb 2013 599- i Sony A58
Sony RX100« » 4.0 in 2.3 in 1.4 in 8.5 oz 330 n Jun 2012 649- i Sony RX100
Sony A77« » 5.6 in 4.1 in 3.2 in 25.8 oz 470 Y Aug 2011 1,999- i Sony A77

The camera’s price is obviously a critical decision-making factor. 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. 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: Sony A77 II vs Sony RX10

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 A77 II features an APS-C sensor and the Sony RX10 an one-inch sensor. The sensor area in the RX10 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 sensor measures

With 24MP, the A77 II offers a higher resolution than the RX10 (20MP), but the A77 II nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 2.41μm for the RX10) due to its larger sensor. Moreover, the A77 II is a somewhat more recent model (by 6 months) than the RX10, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

A77 II versus RX10 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 A77 II» APS-C 24.0 6000 40001080/60p----Sony A77 II
Sony RX10« 1-inch 20.0 5472 36481080/60p22.912.647469Sony RX10
Canon G3 X« » 1-inch 20.0 5472 36481080/60p21.412.352163Canon G3 X
Canon 70D« » APS-C 20.0 5472 36481080/30p22.511.692668Canon 70D
Nikon D7200« » APS-C 24.0 6000 40001080/60p24.514.6133387Nikon D7200
Nikon D7100« » APS-C 24.0 6000 40001080/60p24.213.7125683Nikon D7100
Panasonic GX8« » Four Thirds 20.2 5184 38884K/30p23.512.680675Panasonic GX8
Pentax KP« » APS-C 24.1 6016 40001080/60i----Pentax KP
Pentax K-3 II« » APS-C 24.1 6016 40001080/60i23.613.6110680Pentax K-3 II
Pentax K-3« » APS-C 24.1 6016 40001080/60i23.713.4121680Pentax K-3
Sony RX10 III« » 1-inch 20.0 5472 36484K/30p23.112.647270Sony RX10 III
Sony RX10 II« » 1-inch 20.0 5472 36484K/30p23.012.653170Sony RX10 II
Sony A7 II« » Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
Sony A58« » APS-C 19.8 5456 36321080/60i23.312.575374Sony A58
Sony RX100« » 1-inch 20.0 5472 36481080/60p22.612.439066Sony RX100
Sony A77« » APS-C 24.0 6000 40001080/60p24.013.280178Sony A77

Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/60p).

 

Feature comparison: Sony A77 II vs Sony RX10

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the A77 II offers a substantially higher resolution than the one in the RX10 (2359k vs 1440k dots). The table below summarizes some of the other core capabilities of the Sony A77 II and Sony RX10 in connection with corresponding information for a sample of similar cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.

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)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Sony A77 II»2359 Y 3.0 1229 full-flex n 8000 12.0 Y Y Sony A77 II
Sony RX10«1440 Y 3.0 1229 tilting n 3200 10.0 Y Y Sony RX10
Canon G3 X« »- n 3.2 1620 tilting Y 2000 5.9 Y Y Canon G3 X
Canon 70D« »optical Y 3.0 1040 swivel Y 8000 7.0 Y n Canon 70D
Nikon D7200« »optical Y 3.2 1229 fixed n 8000 6.0 Y n Nikon D7200
Nikon D7100« »optical Y 3.2 1229 fixed n 8000 6.0 Y n Nikon D7100
Panasonic GX8« »2360 n 3.0 1040 swivel Y 8000 10.0 n Y Panasonic GX8
Pentax KP« »optical n 3.0 921 tilting n 6000 7.0 Y Y Pentax KP
Pentax K-3 II« »optical Y 3.2 1037 fixed n 8000 8.3 n Y Pentax K-3 II
Pentax K-3« »optical Y 3.2 1037 fixed n 8000 8.3 Y Y Pentax K-3
Sony RX10 III« »2359 Y 3.0 1229 tilting n 2000 14.0 Y Y Sony RX10 III
Sony RX10 II« »2359 Y 3.0 1229 tilting n 3200 14.0 Y Y Sony RX10 II
Sony A7 II« »2400 n 3.0 1230 tilting n 8000 5.0 n Y Sony A7 II
Sony A58« »1440 n 2.7 460 tilting n 4000 5.0 Y Y Sony A58
Sony RX100« »- n 3.0 1229 fixed n 2000 10.0 Y Y Sony RX100
Sony A77« »2359 Y 3.0 921 full-flex n 8000 12.0 Y Y Sony A77

Both the A77 II and the RX10 write their imaging data to SDXC or Memory Stick PRO Duo cards.

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 A77 II»YstereomonoY-mini2.0YY-Sony A77 II
Sony RX10«YstereomonoYYmicro2.0YY-Sony RX10
Canon G3 X« »YstereomonoYYmini2.0YY-Canon G3 X
Canon 70D« »YstereomonoY-mini2.0Y--Canon 70D
Nikon D7200« »YstereomonoYYmini2.0YY-Nikon D7200
Nikon D7100« »YstereomonoYYmini2.0---Nikon D7100
Panasonic GX8« »YstereomonoY-micro2.0YY-Panasonic GX8
Pentax KP« »YstereomonoY--2.0Y--Pentax KP
Pentax K-3 II« »YmonomonoYYmini3.0---Pentax K-3 II
Pentax K-3« »YmonomonoYYmini3.0---Pentax K-3
Sony RX10 III« »YstereomonoYYmicro2.0YY-Sony RX10 III
Sony RX10 II« »YstereomonoYYmicro2.0YY-Sony RX10 II
Sony A7 II« »YstereomonoYYmicro2.0YY-Sony A7 II
Sony A58« »YstereomonoY-mini2.0---Sony A58
Sony RX100« »-stereomono--micro2.0---Sony RX100
Sony A77« »YstereomonoY-mini2.0---Sony A77

The A77 II is a current model that online retailers, such as amazon, will have in stock. In contrast, the RX10 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the RX10 was succeeded by the Sony RX10 II.

Review summary: Sony A77 II vs Sony RX10

So what conclusions can be drawn? Is the Sony A77 II better than the Sony RX10 or vice versa? The listing below highlights the relative strengths of the two models.


Advantages of the Sony Alpha SLT-A77 II:

  • More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
  • Better image quality: Features a larger and more technologically advanced imaging sensor.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (2359k vs 1440k dots).
  • More flexible LCD: Has full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 3200/sec) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • Longer lasting: Can take more shots (480 versus 420) on a single battery charge.
  • More modern: Is somewhat more recent (announced 6 months after the RX10).


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

  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Ready to shoot: Comes with an integrated lens, while the A77 II requires a separate lens.
  • More compact: Is smaller (129x88mm vs 143x104mm) and will fit more readily into a bag.
  • More heavily discounted: Has been on the market for longer (launched in October 2013).

If the number of relative strengths (bullet points above) is taken as a guide, the A77 II is the clear winner of the match-up (9 : 4 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.

A77 II 09:04 RX10

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the A77 II or the RX10 handle or perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is why hands-on reviews by experts are important. The following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.

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 A77 II»-80/1004.5/54/55/5 May 2014 1,199 i i Sony A77 II
Sony RX10«Rec80/1004.5/54.5/54.5/5 Oct 2013 1,299- i Sony RX10
Canon G3 X« »Rec-4.5/53.5/54/5 Jun 2015 999 i i Canon G3 X
Canon 70D« »HiRec83/1004.5/54.5/55/5 Jul 2013 1,199- i Canon 70D
Nikon D7200« »HiRec84/1004.5/54/54.5/5 Mar 2015 1,199- i Nikon D7200
Nikon D7100« »HiRec85/1004.5/55/54.5/5 Feb 2013 1,199- i Nikon D7100
Panasonic GX8« »Rec82/1004.5/55/54.5/5 Jul 2015 1,199- i Panasonic GX8
Pentax KP« »-82/1005/5-4.5/5 Jan 2017 1,099 i i Pentax KP
Pentax K-3 II« »--5/54.5/55/5 Apr 2015 1,099 i i Pentax K-3 II
Pentax K-3« »-83/1005/54.5/55/5 Oct 2013 1,299- i Pentax K-3
Sony RX10 III« »Rec84/1004.5/54.5/54.5/5 Mar 2016 1,499- i Sony RX10 III
Sony RX10 II« »HiRec82/1004.5/54.5/54/5 Jun 2015 1,299- i Sony RX10 II
Sony A7 II« »Rec82/1004.5/55/55/5 Nov 2014 1,999- i Sony A7 II
Sony A58« »--4.5/54.5/54.5/5 Feb 2013 599- i Sony A58
Sony RX100« »HiRec78/1004/55/55/5 Jun 2012 649- i Sony RX100
Sony A77« »91/10081/100-4.5/55/5 Aug 2011 1,999- i Sony A77

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.

 

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 use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored. If you do not see the camera that you are looking for, kindly get in touch, and I will try to add information on that model to the database.

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