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Olympus E-M10 vs Sony RX100 IV

The Olympus OM-D E-M10 and the Sony Cyber-shot DSC-RX100 IV are two digital cameras that were revealed to the public, respectively, in January 2014 and June 2015. The E-M10 is a mirrorless interchangeable lens camera, while the RX100 IV is a fixed lens compact. The cameras are based on a Four Thirds (E-M10) 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-M10
versus
Sony RX100 IV
Olympus E-M10   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
1080/30p Video 4K/30p Video
ISO 200-25,600 ISO 125-12,800 (80 - 25,600)
Electronic viewfinder (1440k dots) Electronic viewfinder (2359k dots)
3.0" LCD – 1037k dots 3.0" LCD – 1228k dots
Tilting touchscreen Tilting screen (no touchscreen)
8 shutter flaps per second 16 shutter flaps per second
In-body stabilizationLens-based stabilization
320 shots per battery charge280 shots per battery charge
119 x 82 x 46 mm, 396 g 102 x 58 x 41 mm, 298 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M10 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.

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Body comparison

An illustration of the physical size and weight of the Olympus E-M10 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-M10 can be obtained in two different colors (black, silver), while the RX100 IV is only available in black.

Size Olympus E-M10 vs Sony RX100 IV
Compare E-M10 versus RX100 IV top
Comparison E-M10 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 (39 percent) than the Olympus E-M10. In this context, it is worth noting that neither the E-M10 nor the RX100 IV are weather-sealed.

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-M10 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-M10 and their specifications in the Micro Four Thirds Lens Catalog.

Concerning battery life, the E-M10 gets 320 shots out of its Olympus BLS-5 battery, while the RX100 IV can take 280 images on a single charge of its Sony 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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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.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699ebay.com
2.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999ebay.com
3.
 
Canon G5 X 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799ebay.com
4.
 
Olympus E-PL10 117 mm 68 mm 39 mm 380 g 350 n Oct 2019 599ebay.com
5.
 
Olympus E-PL9 117 mm 68 mm 39 mm 380 g 350 n Feb 2018 599ebay.com
6.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649ebay.com
7.
 
Olympus E-PL7 115 mm 67 mm 38 mm 357 g 350 n Aug 2014 599ebay.com
8.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 999ebay.com
9.
 
Olympus E-PL6 111 mm 64 mm 38 mm 325 g 360 n May 2013 599ebay.com
10.
 
Olympus E-PL5 111 mm 64 mm 38 mm 325 g 360 n Sep 2012 599ebay.com
11.
 
Panasonic FZ2500 138 mm 102 mm 135 mm 915 g 350 n Sep 2016 1,199 amazon.com
12.
 
Panasonic GX85 122 mm 71 mm 44 mm 426 g 290 n Apr 2016 799 amazon.com
13.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599ebay.com
14.
 
Panasonic GX7 123 mm 71 mm 55 mm 402 g 350 n Aug 2013 999ebay.com
15.
 
Sony RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 999ebay.com
16.
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799ebay.com
17.
 
Sony RX100 II 102 mm 58 mm 38 mm 281 g 350 n Jun 2013 749ebay.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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Any camera decision will obviously take relative prices into account. 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Olympus E-M10 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-M10 has a native 4:3 aspect ratio, while the one in the RX100 IV offers a 3:2 aspect.

Olympus E-M10 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-M10. 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-M10). However, it should be noted that the RX100 IV is a somewhat more recent model (by 1 year and 4 months) than the E-M10, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage. Coming back to sensor resolution, it should be mentioned that the E-M10 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

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-M10 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.

The Olympus OM-D E-M10 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.

In terms of underlying technology, the E-M10 is build around a CMOS sensor, while the RX100 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.

E-M10 versus RX100 IV MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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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.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
2.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
3.
 
Canon G5 X 1-inch 20.0 5472 36481080/60p21.412.347162
4.
 
Olympus E-PL10 Four Thirds 15.9 4608 34564K/30p23.313.1132476
5.
 
Olympus E-PL9 Four Thirds 15.9 4608 34564K/30p23.112.8116274
6.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
7.
 
Olympus E-PL7 Four Thirds 15.9 4608 34561080/30p22.712.487372
8.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
9.
 
Olympus E-PL6 Four Thirds 15.9 4608 34561080/30p22.512.071768
10.
 
Olympus E-PL5 Four Thirds 15.9 4608 34561080/30p22.812.388972
11.
 
Panasonic FZ2500 1-inch 20.0 5472 36484K/30p23.012.653870
12.
 
Panasonic GX85 Four Thirds 15.8 4592 34484K/30p22.912.666271
13.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
14.
 
Panasonic GX7 Four Thirds 15.8 4592 34481080/60p22.612.271870
15.
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
16.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
17.
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the RX100 IV provides a better video resolution than the E-M10. It can shoot movie footage at 4K/30p, while the Olympus is limited to 1080/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the RX100 IV offers a substantially higher resolution than the one in the E-M10 (2359k vs 1440k dots). The table below summarizes some of the other core capabilities of the Olympus E-M10 and Sony RX100 IV in connection with corresponding information for a sample of similar 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.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0/s Y Y
2.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
3.
 
Canon G5 X2360 n3.0 / 1040 swivel Y 1/2000s 5.9/s Y Y
4.
 
Olympus E-PL10none n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
5.
 
Olympus E-PL9none n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
6.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
7.
 
Olympus E-PL7optional n3.0 / 1037 tilting Y 1/4000s 8.0/s n Y
8.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
9.
 
Olympus E-PL6optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
10.
 
Olympus E-PL5optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
11.
 
Panasonic FZ25002360 n3.0 / 1040 swivel Y 1/4000s 12.0/s Y Y
12.
 
Panasonic GX852765 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
13.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
14.
 
Panasonic GX72760 n3.0 / 1040 tilting Y 1/8000s 5.0/s Y Y
15.
 
Sony RX100 V2359 n3.0 / 1229 tilting n 1/2000s 24.0/s Y Y
16.
 
Sony RX100 III1440 n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
17.
 
Sony RX100 IIoptional n3.0 / 1229 tilting n 1/2000s 10.0/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 E-M10 has a touchscreen, while the RX100 IV has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The RX100 IV 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 E-M10 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 RX100 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).

The Olympus E-M10 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-M10 writes its imaging data to SDXC cards, while the RX100 IV uses 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 Olympus OM-D E-M10 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
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
2.
 
Sony RX100 IV-stereo / mono--micro2.0YY-
3.
 
Canon G5 XYstereo / mono--mini2.0YY-
4.
 
Olympus E-PL10Ystereo / mono--micro2.0Y-Y
5.
 
Olympus E-PL9Ystereo / mono--micro2.0Y-Y
6.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
7.
 
Olympus E-PL7Ystereo / mono--micro2.0Y--
8.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
9.
 
Olympus E-PL6Ystereo / mono--mini2.0---
10.
 
Olympus E-PL5Ystereo / mono--mini2.0---
11.
 
Panasonic FZ2500Ystereo / monoYYmicro2.0Y--
12.
 
Panasonic GX85Ystereo / mono--micro2.0Y--
13.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
14.
 
Panasonic GX7Ystereo / mono--mini2.0YY-
15.
 
Sony RX100 V-stereo / mono--micro2.0YY-
16.
 
Sony RX100 III-stereo / mono--micro2.0YY-
17.
 
Sony RX100 IIYstereo / mono--micro2.0YY-
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It is notable that the E-M10 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.

Both the E-M10 and the RX100 IV have been discontinued, but can regularly be found used on ebay. The E-M10 was replaced by the Olympus E-M10 II, while the RX100 IV was followed by the Sony RX100 IV. Further information on the features and operation of the E-M10 and RX100 IV can be found, respectively, in the Olympus E-M10 Manual (free pdf) or the online Sony RX100 IV Manual.

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Review summary

So how do things add up? Is there a clear favorite between the Olympus E-M10 and the Sony RX100 IV? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Olympus OM-D E-M10:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better low-light sensitivity: Requires less light for good images (0.6 stops ISO advantage).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s 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 (320 versus 280) on a single battery charge.
  • 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 January 2014).

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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 moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (2359k vs 1440k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.59x vs 0.58x).
  • More detailed LCD: Has a higher resolution rear screen (1228k vs 1037k dots).
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (16 vs 8 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Ready to shoot: Has an integrated lens, whereas the E-M10 necessitates an extra lens.
  • More compact: Is smaller (102x58mm vs 119x82mm) 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-M10).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More modern: Was introduced somewhat (1 year and 4 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the RX100 IV is the clear winner of the contest (15 : 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 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-M10 09:15 RX100 IV

How about other alternatives? Do the specifications of the Olympus E-M10 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 technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the E-M10 and the RX100 IV in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

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.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 699ebay.com
2.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999ebay.com
3.
 
Canon G5 X5/5+ +..78/1004.5/54.5/5 Oct 2015 799ebay.com
4.
 
Olympus E-PL10....4/577/100..4/5 Oct 2019 599ebay.com
5.
 
Olympus E-PL9..+....4.5/54/5 Feb 2018 599ebay.com
6.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649ebay.com
7.
 
Olympus E-PL74/5+....5/54/5 Aug 2014 599ebay.com
8.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 999ebay.com
9.
 
Olympus E-PL6............ May 2013 599ebay.com
10.
 
Olympus E-PL53/5+ +....4.5/54.5/5 Sep 2012 599ebay.com
11.
 
Panasonic FZ2500..+..82/1004.5/55/5 Sep 2016 1,199 amazon.com
12.
 
Panasonic GX854.5/5+ +..82/1005/55/5 Apr 2016 799 amazon.com
13.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599ebay.com
14.
 
Panasonic GX74/5+..79/1005/55/5 Aug 2013 999ebay.com
15.
 
Sony RX100 V4.5/5+ +..83/1004/54.5/5 Oct 2016 999ebay.com
16.
 
Sony RX100 III5/5+ +..82/1004.5/55/5 May 2014 799ebay.com
17.
 
Sony RX100 II5/5+ +..79/1004.5/54.5/5 Jun 2013 749ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted with care, 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, 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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Olympus E-M10 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-M10 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 January 2014 June 2015
    Launch Price USD 699 USD 999
    Sensor Specs Olympus E-M10 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 no AA filter Anti-Alias filter
    Movie Capability 1080/30p 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) 72 70
    DXO Color Depth (bits) 22.8 22.8
    DXO Dynamic Range (EV) 12.3 12.6
    DXO Low Light (ISO) 884 591
    Screen Specs Olympus E-M10 Sony RX100 IV
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.58x 0.59x
    Viewfinder Resolution 1440k dots 2359k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1037k dots 1228k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Olympus E-M10 Sony RX100 IV
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/2000s
    Continuous Shooting 8 shutter flaps/s 16 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/32000s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationLens-based stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium 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 Olympus E-M10 Sony RX100 IV
    External Flash Hotshoe no Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Olympus E-M10 Sony RX100 IV
    Battery Type Olympus BLS-5 Sony NP-BX1
    Battery Life (CIPA)320 shots per charge280 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 119 x 82 x 46 mm
    (4.7 x 3.2 x 1.8 in)
    102 x 58 x 41 mm
    (4.0 x 2.3 x 1.6 in)
    Camera Weight 396 g (14.0 oz) 298 g (10.5 oz)
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