Sony A7 vs RX100 II
The Sony Alpha A7 and the Sony Cyber-shot DSC-RX100 II are two digital cameras that were revealed to the public, respectively, in October 2013 and June 2013. The A7 is a mirrorless interchangeable lens camera, while the RX100 II is a fixed lens compact. The cameras are based on a full frame (A7) and an one-inch (RX100 II) sensor. The A7 has a resolution of 24 megapixels, whereas the RX100 II provides 20 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Sony A7||Sony RX100 II|
|Mirrorless system camera||Fixed lens compact camera|
|Sony E mount lenses||28-100mm f/1.8-4.9|
|24 MP, Full Frame Sensor||20 MP, 1" Sensor|
|1080/60p Video||1080/60p Video|
|ISO 100-25600 (50-51200)||ISO 100-12800 (100-25600)|
|Electronic viewfinder (2400k dots)||Viewfinder optional|
|3.0" LCD, 1230k dots||3.0" LCD, 1229k dots|
|Tilting screen (no touchscreen)||Tilting screen (not touch-sensitive)|
|5 shutter flaps per second||10 shutter flaps per second|
|Weathersealed body||Not weather sealed|
|340 shots per battery charge||350 shots per battery charge|
|127 x 94 x 48 mm, 474 g||102 x 58 x 38 mm, 281 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7 and the Sony Cyber-shot DSC-RX100 II? 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 Sony A7 and the Sony RX100 II 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 dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX100 II is considerably smaller (50 percent) than the Sony A7. It is worth mentioning in this context that the A7 is splash and dust resistant, while the RX100 II does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX100 II has a lens built in, whereas the A7 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 A7 and their specifications in the Sony FE Lens Catalog.
Concerning battery life, the A7 gets 340 shots out of its NP-FW50 battery, while the RX100 II can take 350 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. 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.
|Sony A7»||127 mm||94 mm||48 mm||474 g||340||Y||Oct 2013||1,699||Sony A7|
|Sony RX100 II«||102 mm||58 mm||38 mm||281 g||350||n||Jun 2013||749||Sony RX100 II|
|Canon G7 X« »||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699||Canon G7 X|
|Nikon D610« »||141 mm||113 mm||82 mm||850 g||900||Y||Oct 2013||1,999||Nikon D610|
|Panasonic FZ1000« »||137 mm||99 mm||131 mm||831 g||360||n||Jun 2014||899||Panasonic FZ1000|
|Panasonic GH4« »||133 mm||93 mm||84 mm||560 g||500||Y||Feb 2014||1,499||Panasonic GH4|
|Samsung NX1« »||139 mm||102 mm||66 mm||550 g||500||Y||Sep 2014||1,499||Samsung NX1|
|Sony A7 III« »||127 mm||96 mm||74 mm||650 g||610||Y||Feb 2018||1,999||Sony A7 III|
|Sony A6300« »||120 mm||67 mm||49 mm||404 g||400||Y||Feb 2016||999||Sony A6300|
|Sony A6500« »||120 mm||67 mm||53 mm||453 g||350||Y||Oct 2016||1,399||Sony A6500|
|Sony RX100 IV« »||102 mm||58 mm||41 mm||298 g||280||n||Jun 2015||999||Sony RX100 IV|
|Sony A7 II« »||127 mm||96 mm||60 mm||599 g||350||Y||Nov 2014||1,999||Sony A7 II|
|Sony A7S« »||127 mm||94 mm||48 mm||489 g||380||Y||Apr 2014||2,499||Sony A7S|
|Sony RX100 III« »||102 mm||58 mm||41 mm||290 g||320||n||May 2014||799||Sony RX100 III|
|Sony A7R« »||127 mm||94 mm||48 mm||465 g||340||Y||Oct 2013||2,299||Sony A7R|
|Sony RX1R« »||113 mm||65 mm||70 mm||482 g||270||n||Jun 2013||2,799||Sony RX1R|
|Sony RX100« »||102 mm||58 mm||36 mm||240 g||330||n||Jun 2012||649||Sony RX100|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
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 RX100 II was launched at a lower price than the A7, despite having a lens built in. 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Sony A7 features a full frame sensor and the Sony RX100 II an one-inch sensor. The sensor area in the RX100 II is 86 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 24MP, the A7 offers a higher resolution than the RX100 II (20MP), but the A7 nevertheless has larger individual pixels (pixel pitch of 5.97μm versus 2.41μm for the RX100 II) due to its larger sensor. Moreover, the A7 is a somewhat more recent model (by 3 months) than the RX100 II, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The resolution advantage of the Sony A7 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Sony RX100 II are 27.4 x 18.2 inch or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inch or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inch or 46.3 x 30.9 cm for excellent quality prints.
The A7 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Sony Alpha A7 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-RX100 II are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 100-25600.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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"). Of the two cameras under review, the A7 provides substantially higher image quality than the RX100 II, with an overall score that is 23 points higher. This advantage is based on 2.3 bits higher color depth, 1.8 EV in additional dynamic range, and 2.2 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Sony A7||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90||Sony A7|
|Sony RX100 II||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||67||Sony RX100 II|
|Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71||Canon G7 X|
|Nikon D610||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94||Nikon D610|
|Panasonic FZ1000||1-inch||20.0||5472||3648||4K/30p||22.1||11.7||517||64||Panasonic FZ1000|
|Panasonic GH4||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74||Panasonic GH4|
|Samsung NX1||APS-C||28.0||6480||4320||4K/30p||24.2||13.2||1363||83||Samsung NX1|
|Sony A7 III||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96||Sony A7 III|
|Sony A6300||APS-C||24.0||6000||4000||4K/30p||24.4||13.7||1437||85||Sony A6300|
|Sony A6500||APS-C||24.0||6000||4000||4K/30p||24.5||13.7||1405||85||Sony A6500|
|Sony RX100 IV||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70||Sony RX100 IV|
|Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90||Sony A7 II|
|Sony A7S||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87||Sony A7S|
|Sony RX100 III||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67||Sony RX100 III|
|Sony A7R||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95||Sony A7R|
|Sony RX1R||Full Frame||24.0||6000||4000||1080/60p||25.0||13.6||2537||91||Sony RX1R|
|Sony RX100||1-inch||20.0||5472||3648||1080/60p||22.6||12.4||390||66||Sony RX100|
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, and both provide the same movie specifications (1080/60p).
Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7 has an electronic viewfinder (2400k dots), which can be very helpful when shooting in bright sunlight. In contrast, the RX100 II relies on live view and the rear LCD for framing. That said, the RX100 II can be equipped with an optional viewfinder – the FDA-EV1MK. The adjacent table lists some of the other core features of the Sony A7 and Sony RX100 II along with similar information for a selection of comparators.
|Sony A7||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||n||Sony A7|
|Sony RX100 II||optional||n||3.0||1229||tilting||n||1/2000s||10.0||Y||Y||Sony RX100 II|
|Canon G7 X||none||n||3.0||1040||tilting||Y||1/2000s||6.5||Y||Y||Canon G7 X|
|Nikon D610||optical||Y||3.2||921||fixed||n||1/4000s||6.0||Y||n||Nikon D610|
|Panasonic FZ1000||2359||n||3.0||921||swivel||n||1/4000s||12.0||Y||Y||Panasonic FZ1000|
|Panasonic GH4||2359||n||3.0||1036||swivel||Y||1/8000s||12.0||Y||n||Panasonic GH4|
|Samsung NX1||2360||Y||3.0||1036||tilting||Y||1/8000s||15.0||Y||n||Samsung NX1|
|Sony A7 III||2359||n||3.0||922||tilting||Y||1/8000s||10.0||n||Y||Sony A7 III|
|Sony A6300||2359||n||3.0||922||tilting||n||1/4000s||11.0||Y||n||Sony A6300|
|Sony A6500||2359||n||3.0||922||tilting||Y||1/4000s||11.0||Y||Y||Sony A6500|
|Sony RX100 IV||2359||n||3.0||1228||tilting||n||1/2000s||16.0||Y||Y||Sony RX100 IV|
|Sony A7 II||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y||Sony A7 II|
|Sony A7S||2400||n||3.0||921||tilting||n||1/8000s||5.0||n||n||Sony A7S|
|Sony RX100 III||1440||n||3.0||1229||tilting||n||1/2000s||10.0||Y||Y||Sony RX100 III|
|Sony A7R||2400||n||3.0||1230||tilting||n||1/8000s||4.0||n||n||Sony A7R|
|Sony RX1R||optional||n||3.0||1229||fixed||n||1/4000s||5.0||Y||n||Sony RX1R|
|Sony RX100||none||n||3.0||1229||fixed||n||1/2000s||10.0||Y||Y||Sony RX100|
One difference between the cameras concerns the presence of an on-board flash. The RX100 II has one, while the A7 does not. While the built-in flash of the RX100 II is not very powerful, it can at times be useful as a fill-in light.
Concerning the storage of imaging data, both the A7 and the RX100 II write their files to SDXC or Memory Stick PRO Duo cards. The A7 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the RX100 II cannot take advantage of Ultra High Speed SD cards.
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 A7 and Sony Cyber-shot DSC-RX100 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Sony A7||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7|
|Sony RX100 II||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Sony RX100 II|
|Canon G7 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Canon G7 X|
|Nikon D610||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Nikon D610|
|Panasonic FZ1000||Y||stereo||mono||Y||-||micro||2.0||Y||Y||-||Panasonic FZ1000|
|Panasonic GH4||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Panasonic GH4|
|Samsung NX1||Y||stereo||mono||Y||Y||micro||3.0||Y||Y||Y||Samsung NX1|
|Sony A7 III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7 III|
|Sony A6300||Y||stereo||mono||Y||-||micro||2.0||Y||Y||-||Sony A6300|
|Sony A6500||Y||stereo||mono||Y||-||micro||2.0||Y||Y||-||Sony A6500|
|Sony RX100 IV||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Sony RX100 IV|
|Sony A7 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7 II|
|Sony A7S||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S|
|Sony RX100 III||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Sony RX100 III|
|Sony A7R||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R|
|Sony RX1R||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony RX1R|
|Sony RX100||-||stereo||mono||-||-||micro||2.0||-||-||-||Sony RX100|
It is notable that the A7 has a microphone port, which is missing on the RX100 II. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Both the A7 and the RX100 II have been discontinued, but can regularly be found used on eBay. The RX100 II was replaced by the Sony RX100 III, while the A7 was followed by the Sony A7 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Sony website.
So how do things add up? Is there a clear favorite between the Sony A7 and the Sony RX100 II? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Sony Alpha A7:
- More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
- Better image quality: Scores substantially higher (23 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (2.3 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.8 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (2.2 stops ISO advantage).
- 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.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Is somewhat more recent (announced 3 months after the RX100 II).
Advantages of the Sony Cyber-shot DSC-RX100 II:
- Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
- Ready to shoot: Has an integrated lens, whereas the A7 necessitates an extra lens.
- More compact: Is smaller (102x58mm vs 127x94mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the A7).
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More heavily discounted: Has been on the market for longer (launched in June 2013).
If the count of individual advantages (bullet points above) is taken as a guide, the A7 is the clear winner of the match-up (14 : 8 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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.
How about other alternatives? Do the specifications of the Sony A7 and the Sony RX100 II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Travel-Zoom Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the A7 or the RX100 II. 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 ratings of the cameras as published by some of the major camera 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.
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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. 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.
- Canon 200D vs Sony A7 III
- Canon 450D vs Sony RX100 II
- Canon SX520 vs Sony A7 II
- Fujifilm X-E1 vs Sony A7 II
- Fujifilm X100T vs Sony A7 III
- Nikon D100 vs Sony A7
- Panasonic G85 vs Sony RX100 II
- Panasonic ZS80 vs Sony RX100 II
- Sony A5000 vs Sony A7 III
- Sony A7 III vs Sony A7S
- Sony A7 vs Sony NEX-7
- Sony NEX-3N vs Sony RX100 II
Specifications: Sony A7 vs Sony RX100 II
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||Sony A7||Sony RX100 II|
|Camera Type||Mirrorless system camera||Fixed lens compact camera|
|Camera Lens||Sony E mount lenses||28-100mm f/1.8-4.9|
|Launch Date||October 2013||June 2013|
|Launch Price||USD 1699||USD 749|
|Sensor Specs||Sony A7||Sony RX100 II|
|Sensor Format||Full Frame Sensor||1" Sensor|
|Sensor Size||35.8 x 23.9 mm||13.2 x 8.8 mm|
|Sensor Area||855.62 mm2||116.16 mm2|
|Sensor Diagonal||43 mm||15.9 mm|
|Sensor Resolution||24 Megapixels||20 Megapixels|
|Image Resolution||6000 x 4000 pixels||5472 x 3648 pixels|
|Pixel Pitch||5.97 μm||2.41 μm|
|Pixel Density||2.80 MP/cm2||17.18 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||1080/60p Video|
|ISO Setting||100-25600 ISO||100-12800 ISO|
|ISO Boost||50-51200 ISO||100-25600 ISO|
|Image Processor||BIONZ X||BIONZ X|
|DXO Sensor Quality (score)||90||67|
|DXO Color Depth (bits)||24.8||22.5|
|DXO Dynamic Range (EV)||14.2||12.4|
|DXO Low Light (ISO)||2248||483|
|Screen Specs||Sony A7||Sony RX100 II|
|Viewfinder Type||Electronic viewfinder||Viewfinder optional|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2400k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||1230k dots||1229k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Shooting Specs||Sony A7||Sony RX100 II|
|Autofocus System||On-Sensor Phase-detect||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000/s||1/2000/s|
|Continuous Shooting||5 shutter flaps/s||10 shutter flaps/s|
|Fill Flash||no On-Board 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||no|
|Connectivity Specs||Sony A7||Sony RX100 II|
|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|
|Body Specs||Sony A7||Sony RX100 II|
|Environmental Sealing||Weathersealed body||Not weather sealed|
|Battery Life (CIPA)||340 shots per charge||350 shots per charge|
|In-Camera Charging||USB charging||USB charging|
127 x 94 x 48 mm
(5.0 x 3.7 x 1.9 in)
102 x 58 x 38 mm
(4.0 x 2.3 x 1.5 in)
|Camera Weight||474 g (16.7 oz)||281 g (9.9 oz)|
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