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Olympus E-M5 II vs Sony RX100 IV

The Olympus OM-D E-M5 Mark II and the Sony Cyber-shot DSC-RX100 IV are two digital cameras that were announced, respectively, in February 2015 and June 2015. The E-M5 II is a mirrorless interchangeable lens camera, while the RX100 IV is a fixed lens compact. The cameras are based on a Four Thirds (E-M5 II) and an one-inch (RX100 IV) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Sony provides 20 MP.

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

Headline Specifications
Olympus E-M5 II versus Sony RX100 IV
Olympus E-M5 II Sony RX100 IV
Mirrorless system camera Fixed lens compact camera
Micro Four Thirds lenses 24-70mm f/1.8-2.8
15.9 MP, Four Thirds Sensor 20 MP, 1" Sensor
1080/60p Video 4K/30p Video
ISO 200-25,600 ISO 125-12,800 (80 - 25,600)
Electronic viewfinder (2360k dots) Electronic viewfinder (2359k dots)
3.0 LCD, 1037k dots 3.0 LCD, 1228k dots
Swivel touchscreen Tilting screen (not touch-sensitive)
10 shutter flaps per second 16 shutter flaps per second
In-body stabilizationLens-based stabilization
Weathersealed bodynot weather sealed
310 shots per battery charge280 shots per battery charge
124 x 85 x 45 mm, 469 g 102 x 58 x 41 mm, 298 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M5 Mark II and the Sony Cyber-shot DSC-RX100 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.

Body comparison

An illustration of the physical size and weight of the Olympus E-M5 II and the Sony RX100 IV is provided 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 size dimensions are rounded to the nearest millimeter.

The E-M5 II can be obtained in two different colors (black, silver), while the RX100 IV is only available in black.

Size Olympus E-M5 II vs Sony RX100 IV
Compare E-M5 II versus RX100 IV top
Comparison E-M5 II or RX100 IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX100 IV is considerably smaller (44 percent) than the Olympus E-M5 II. It is worth mentioning in this context that the E-M5 II is splash and dust resistant, while the RX100 IV does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX100 IV has a lens built in, whereas the E-M5 II 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 E-M5 II and their specifications in the Micro Four Thirds Lens Catalog.

Concerning battery life, the E-M5 II gets 310 shots out of its BLN-1 battery, while the RX100 IV can take 280 images on a single charge of its NP-BX1 power pack. The power pack in the RX100 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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099i
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999i
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699i
 
Olympus E-M5 III 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 1,199 i
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999 i
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 1,199i
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649i
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699i
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399i
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 999i
 
Olympus E-M5 122 mm 89 mm 43 mm 425 g 360 Y Feb 2012 1,299i
 
Panasonic G80 128 mm 89 mm 74 mm 505 g 330 Y Sep 2016 899i
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199i
 
Panasonic FZ1000 137 mm 99 mm 131 mm 831 g 360 n Jun 2014 899i
 
Sony RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 999 i
 
Sony A6000 120 mm 67 mm 45 mm 344 g 360 n Feb 2014 599i
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

The price is, of course, an important factor in any camera decision. 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 IV was launched at a lower price than the E-M5 II, 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.

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 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to 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 Olympus E-M5 II features a Four Thirds sensor and the Sony RX100 IV an one-inch sensor. The sensor area in the RX100 IV is 48 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 2.7. The sensor in the E-M5 II has a native 4:3 aspect ratio, while the one in the RX100 IV offers a 3:2 aspect.

Olympus E-M5 II and Sony RX100 IV sensor measures

Despite having a smaller sensor, the RX100 IV offers a higher resolution of 20 megapixels, compared with 15.9 MP of the E-M5 II. 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 2.41μm versus 3.76μm for the E-M5 II). However, it should be noted that the RX100 IV is a somewhat more recent model (by 4 months) than the E-M5 II, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.

The resolution advantage of the Sony RX100 IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the RX100 IV for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Olympus E-M5 II are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.

Unlike the RX100 IV, the E-M5 II has the capacity to capture high quality composite images (40MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Olympus OM-D E-M5 Mark II 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-RX100 IV are ISO 125 to ISO 12800, with the possibility to increase the ISO range to 80-25600.

E-M5 II versus RX100 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
 
Olympus E-M5 III Four Thirds 20.2 5184 38884k/24p........
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671
 
Panasonic G80 Four Thirds 15.8 4592 34484K/30p22.812.565671
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
 
Panasonic FZ1000 1-inch 20.0 5472 36484K/30p22.111.751764
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567

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 RX100 IV provides a better video resolution than the E-M5 II. It can shoot movie footage at 4K/30p, while the Olympus is limited to 1080/60p.

Feature comparison

Beyond 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 E-M5 II offers a slightly higher resolution than the one in the RX100 IV (2360k vs 2359k dots). The table below summarizes some of the other core capabilities of the Olympus E-M5 II and Sony RX100 IV in connection with corresponding information for a sample of similar cameras.

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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
 
Olympus E-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y
 
Sony RX100 IV2359 n 3.0 1228 tilting n 1/2000s 16.0 Y Y
 
Canon G7 Xnone n 3.0 1040 tilting Y 1/2000s 6.5 Y Y
 
Olympus E-M5 III2360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y
 
Olympus E-M1 II2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y
 
Olympus PEN-F2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y
 
Olympus E-M10 II2360 n 3.0 1040 tilting Y 1/4000s 8.0 Y Y
 
Olympus E-M101440 n 3.0 1037 tilting Y 1/4000s 8.0 Y Y
 
Olympus E-M12360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y
 
Olympus E-P5optional n 3.0 1037 tilting Y 1/8000s 9.0 Y Y
 
Olympus E-M51440 n 3.0 610 tilting Y 1/4000s 9.0 n Y
 
Panasonic G802360 n 3.0 1040 swivel Y 1/4000s 9.0 Y Y
 
Panasonic GX82360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y
 
Panasonic FZ10002359 n 3.0 921 swivel n 1/4000s 12.0 Y Y
 
Sony RX100 V2359 n 3.0 1229 tilting n 1/2000s 24.0 Y Y
 
Sony A60001440 n 3.0 922 tilting n 1/4000s 11.0 Y n
 
Sony RX100 III1440 n 3.0 1229 tilting n 1/2000s 10.0 Y Y

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-M5 II has a touchscreen, while the RX100 IV has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

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, both cameras under consideration feature an 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 Olympus E-M5 II 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 E-M5 II writes its imaging data to SDXC cards, while the RX100 IV uses SDXC or Memory Stick PRO Duo cards. The E-M5 II supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the RX100 IV can use UHS-I cards (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 Olympus OM-D E-M5 Mark II and Sony Cyber-shot DSC-RX100 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
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
 
Olympus E-M5 IIYstereomonoY-micro2.0Y--
 
Sony RX100 IV-stereomono--micro2.0YY-
 
Canon G7 X-stereomono--micro2.0YY-
 
Olympus E-M5 IIIYstereomonoY-micro2.0Y-Y
 
Olympus E-M1 IIYstereomonoYYmicro3.0Y--
 
Olympus PEN-FYstereomono--micro2.0Y--
 
Olympus E-M10 IIYstereomono--micro2.0Y--
 
Olympus E-M10Ystereomono--micro2.0Y--
 
Olympus E-M1YstereomonoY-micro2.0Y--
 
Olympus E-P5Ystereomono--micro2.0Y--
 
Olympus E-M5Ystereomono--mini2.0---
 
Panasonic G80YstereomonoY-micro2.0Y--
 
Panasonic GX8YstereomonoY-micro2.0YY-
 
Panasonic FZ1000YstereomonoY-micro2.0YY-
 
Sony RX100 V-stereomono--micro2.0YY-
 
Sony A6000Ystereomono--micro2.0YY-
 
Sony RX100 III-stereomono--micro2.0YY-

It is notable that the E-M5 II has a hotshoe, while the RX100 IV does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Studio photographers will appreciate that the Olympus E-M5 II (unlike the RX100 IV) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the E-M5 II and the RX100 IV have been discontinued, but can regularly be found used on eBay. The E-M5 II was replaced by the Olympus E-M5 III, while the RX100 IV was followed by the Sony RX100 IV. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Sony websites.

Review summary

So how do things add up? Is the Olympus E-M5 II better than the Sony RX100 IV or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Olympus OM-D E-M5 Mark II:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better low-light sensitivity: Requires less light for good images (0.5 stops ISO advantage).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.22x).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • 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.
  • Longer lasting: Can take more shots (310 versus 280) on a single battery charge.
  • 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.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More heavily discounted: Has been on the market for longer (launched in February 2015).

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Reasons to prefer the Sony Cyber-shot DSC-RX100 IV:

  • More detail: Has more megapixels (20 vs 15.9MP), which boosts linear resolution by 14%.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • More detailed LCD: Has a higher resolution rear screen (1228k vs 1037k dots).
  • Faster burst: Shoots at higher frequency (16 vs 10 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Has an integrated lens, whereas the E-M5 II necessitates an extra lens.
  • More compact: Is smaller (102x58mm vs 124x85mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the E-M5 II).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Was introduced somewhat (4 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the E-M5 II emerges as the winner of the contest (15 : 12 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-M5 II 15:12 RX100 IV

How about other alternatives? Do the specifications of the Olympus E-M5 II and the Sony RX100 IV 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-M5 II or the RX100 IV. 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 why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Olympus E-M5 II+ +81/1005/54.5/55/5 Feb 2015 1,099i
 
Sony RX100 IV+ +85/1004/54.5/54.5/5 Jun 2015 999i
 
Canon G7 X+ +77/1004.5/53.5/54.5/5 Sep 2014 699i
 
Olympus E-M5 III+82/1004.5/55/54.5/5 Oct 2019 1,199 i
 
Olympus E-M1 II+ +85/1004.5/55/54.5/5 Sep 2016 1,999 i
 
Olympus PEN-F..82/1004.5/54.5/55/5 Jan 2016 1,199i
 
Olympus E-M10 II+ +80/1005/55/55/5 Aug 2015 649i
 
Olympus E-M10..80/1005/54.5/55/5 Jan 2014 699i
 
Olympus E-M1+ +84/1004.5/54.5/54.5/5 Sep 2013 1,399i
 
Olympus E-P5+ +78/1004.5/54.5/55/5 May 2013 999i
 
Olympus E-M5+ +80/1004.5/55/55/5 Feb 2012 1,299i
 
Panasonic G80+ +84/1005/54.5/54.5/5 Sep 2016 899i
 
Panasonic GX8+82/1004.5/55/54.5/5 Jul 2015 1,199i
 
Panasonic FZ1000+ +82/1004.5/54.5/54.5/5 Jun 2014 899i
 
Sony RX100 V+ +83/1004/55/54.5/5 Oct 2016 999 i
 
Sony A6000+80/1004.5/55/55/5 Feb 2014 599i
 
Sony RX100 III+ +82/1004.5/54.5/55/5 May 2014 799i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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. Also, please note that some of the review sites have changed their methodology and reporting over time.

Olympus E-M5 II:
Check Ebay offers
Sony RX100 IV:
Check Ebay offers

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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-M5 II vs Sony RX100 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 Olympus E-M5 II Sony RX100 IV
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Micro Four Thirds lenses 24-70mm f/1.8-2.8
    Launch Date February 2015 June 2015
    Launch Price USD 1,099 USD 999
    Sensor Specs Olympus E-M5 II Sony RX100 IV
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor 1" Sensor
    Sensor Size 17.3 x 13.0 mm 13.2 x 8.8 mm
    Sensor Area 224.9 mm2 116.16 mm2
    Sensor Diagonal 21.6 mm 15.9 mm
    Crop Factor 2.0x 2.7x
    Sensor Resolution 15.9 Megapixels 20 Megapixels
    Image Resolution 4608 x 3456 pixels 5472 x 3648 pixels
    Pixel Pitch 3.76 μm 2.41 μm
    Pixel Density 7.08 MP/cm2 17.18 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 200 - 25,600 ISO 125 - 12,800 ISO
    ISO Boost 100 - 25,600 ISO 80 - 25,600 ISO
    Image Processor TruePic VII BIONZ X
    DXO Sensor Quality (score) 73 70
    DXO Color Depth (bits) 23.0 22.8
    DXO Dynamic Range (EV) 12.5 12.6
    DXO Low Light (ISO) 842 591
    Screen Specs Olympus E-M5 II Sony RX100 IV
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.74x 0.22x
    Viewfinder Resolution 2360k dots 2359k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1037k dots 1228k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Olympus E-M5 II Sony RX100 IV
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/2000s
    Continuous Shooting 10 shutter flaps/s 16 shutter flaps/s
    Electronic Shutterup to 1/16000sup to 1/32000s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationLens-based stabilization
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-II UHS-I
    Connectivity Specs Olympus E-M5 II Sony RX100 IV
    External Flash Hotshoe no Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Olympus E-M5 II Sony RX100 IV
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type BLN-1 NP-BX1
    Battery Life (CIPA)310 shots per charge280 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 124 x 85 x 45 mm
    (4.9 x 3.3 x 1.8 in)
    102 x 58 x 41 mm
    (4.0 x 2.3 x 1.6 in)
    Camera Weight 469 g (16.5 oz) 298 g (10.5 oz)

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