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Sony RX100 IV versus Panasonic LX15

The Sony Cyber-shot DSC-RX100 IV and the Panasonic Lumix DMC-LX15 (labelled Panasonic LX10 in some countries) are two digital cameras that were officially introduced, respectively, in June 2015 and September 2016. Both the RX100 IV and the LX15 are fixed lens compact cameras that are equipped with an one-inch sensor. Both cameras offer a resolution of 20 megapixel.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Sony RX100 IV and the Panasonic LX15. Three consecutive perspectives from the front, the top, and the back are presented. All size dimensions are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the RX100 IV – represents 100 percent across all the size and weight measures).

Sony RX100 IV vs Panasonic LX15 front
RX100 IV versus LX15 top view
RX100 IV and LX15 rear side
Body view (RX100 IV on the left)

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic LX15 is somewhat larger (8 percent) than the Sony RX100 IV. Moreover, the LX15 is slightly heavier (4 percent) than the RX100 IV. In this context, it is worth noting that neither the RX100 IV nor the LX15 are weather-sealed.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Sony RX100 IV (⇒ rgt) 102 mm 58 mm 41 mm 298 g 280 no 2015 999discont. check
Panasonic LX15 (⇒ lft) 106 mm 60 mm 42 mm 310 g 260 no 2016 699 latest check
Canon M5 (⇒ lft | rgt) 116 mm 89 mm 61 mm 427 g 295 no 2016 979 latest check
Canon M3 (⇒ lft | rgt) 111 mm 68 mm 44 mm 366 g 250 no 2015 679discont. check
Canon G5 X (⇒ lft | rgt) 112 mm 76 mm 44 mm 353 g 210 no 2015 799 latest check
Canon G7 X (⇒ lft | rgt) 103 mm 60 mm 40 mm 304 g 210 no 2014 699discont. check
Leica Q Typ 116 (⇒ lft | rgt) 130 mm 80 mm 93 mm 640 g 300 no 2015 4,249 latest check
Panasonic TZ200 (⇒ lft | rgt) 111 mm 65 mm 45 mm 340 g 370 no 2018 799 latest check
Panasonic TZ100 (⇒ lft | rgt) 111 mm 65 mm 44 mm 312 g 300 no 2016 699discont. check
Panasonic FZ1000 (⇒ lft | rgt) 137 mm 99 mm 131 mm 831 g 360 no 2014 899discont. check
Sony RX100 V (⇒ lft | rgt) 102 mm 58 mm 41 mm 299 g 220 no 2016 999 latest check
Sony A6000 (⇒ lft | rgt) 120 mm 67 mm 45 mm 344 g 360 no 2014 599discont. check
Sony RX100 III (⇒ lft | rgt) 102 mm 58 mm 41 mm 290 g 320 no 2014 799discont. check
Sony A5100 (⇒ lft | rgt) 110 mm 63 mm 36 mm 283 g 400 no 2014 549 latest check
Sony A5000 (⇒ lft | rgt) 110 mm 63 mm 36 mm 269 g 420 no 2014 449discont. check
Sony RX100 II (⇒ lft | rgt) 102 mm 58 mm 38 mm 281 g 350 no 2013 749discont. check

The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The LX15 was launched at a markedly lower price (by 30 percent) than the RX100 IV, which puts it into a different market segment. 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature an one-inch sensor and have a format factor (sometimes also referred to as "crop factor") of 2.7. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony RX100 IV and Panasonic LX15 sensor measures
Sensor size

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 20 megapixel. This similarity in sensor specs implies that both the RX100 IV and the LX15 have the same pixel density, as well as the same pixel size. It should, however, be noted that the LX15 is a somewhat more recent model (by 1 year and 3 months) than the RX100 IV, and its sensor might have benefitted from technological advances during this time.

RX100 IV versus LX15 MP
Sensor resolution

Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Sony RX100 IV (⇒ rgt) 1-inch 20.0 5472 3648 4K/30p 22.8 12.6 591 70
Panasonic LX15 (⇒ lft) 1-inch 20.0 5472 3648 4K/30p .. .. .. ..
Canon M5 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.4 12.4 1262 77
Canon M3 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/30p 22.8 11.8 1169 72
Canon G5 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p - - - -
Canon G7 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 23.0 12.7 556 71
Leica Q Typ 116 (⇒ lft | rgt) Full Frame 24.0 6000 4000 1080/60p 24.3 12.7 2221 85
Panasonic TZ200 (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p .. .. .. ..
Panasonic TZ100 (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.8 12.5 559 70
Panasonic FZ1000 (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.1 11.7 517 64
Sony RX100 V (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.8 12.4 586 70
Sony A6000 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 24.1 13.1 1347 82
Sony RX100 III (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 22.4 12.3 495 67
Sony A5100 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.8 12.7 1347 80
Sony A5000 (⇒ lft | rgt) APS-C 19.8 5456 3632 1080/60i 23.8 13.0 1089 79
Sony RX100 II (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 22.5 12.4 483 67

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (4K/30p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the RX100 IV has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the LX15 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Sony RX100 IV and Panasonic LX15 in connection with corresponding information for a sample of similar cameras. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Sony RX100 IV (⇒ rgt) 2359 no 3.0 1228 tilting no 2000 16.0 10.2 YES
Panasonic LX15 (⇒ lft) no no 3.0 1040 tilting YES 4000 10.0 12.1 YES
Canon M5 (⇒ lft | rgt) 2360 no 3.2 1620 tilting YES 4000 9.0 5 no
Canon M3 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 4.2 5 no
Canon G5 X (⇒ lft | rgt) 2360 no 3.0 1040 swivel YES 2000 5.9 7 YES
Canon G7 X (⇒ lft | rgt) no no 3.0 1040 tilting YES 2000 6.5 7 YES
Leica Q Typ 116 (⇒ lft | rgt) 3680 no 3.0 1040 fixed YES 2000 10.0 no no
Panasonic TZ200 (⇒ lft | rgt) 2330 no 3.0 1240 fixed YES 2000 10.0 6.8 YES
Panasonic TZ100 (⇒ lft | rgt) 1166 no 3.0 1040 fixed YES 2000 10.0 YES YES
Panasonic FZ1000 (⇒ lft | rgt) 2359 no 3.0 921 swivel no 4000 12.0 13.5 YES
Sony RX100 V (⇒ lft | rgt) 2359 no 3.0 1229 tilting no 2000 24.0 10.2 YES
Sony A6000 (⇒ lft | rgt) 1440 no 3.0 922 tilting no 4000 11.0 6 no
Sony RX100 III (⇒ lft | rgt) 1440 no 3.0 1229 tilting no 2000 10.0 YES YES
Sony A5100 (⇒ lft | rgt) no no 3.0 922 tilting YES 4000 6.0 4 no
Sony A5000 (⇒ lft | rgt) no no 3.0 461 tilting no 4000 3.5 4 no
Sony RX100 II (⇒ lft | rgt) no no 3.0 1229 tilting no 2000 10.0 15 YES

Both the RX100 IV and the LX15 have zoom lenses build in. The RX100 IV has a 24-70mm f/1.8-2.8 optic and the LX15 offers a 24-72mm f/1.4-2.8 (focal lengths in full frame equivalent terms). Hence, the Sony and Panasonic provide the same view at the wide-angle end, but the Panasonic has more tele-photo reach at the long end. The LX15 offers the faster maximum aperture.

The LX15 is a current model that online retailers, such as amazon, will have in stock. In contrast, the RX100 IV has been discontinued (but it can be found pre-owned on ebay). As a replacement in the same line of cameras, the RX100 IV was succeeded by the Sony RX100 V.

Summary

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


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

  • Easier framing: Has an electronic viewfinder for image framing and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1228k vs 1040k dots).
  • Faster burst: Shoots at higher frequency (16 vs 10 flaps/sec) to capture the decisive moment.
  • More heavily discounted: Has been on the market for longer (launched in June 2015).

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Advantages of the Panasonic Lumix DMC-LX15:

  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (4000/sec vs 2000/sec) to freeze action.
  • Better light gathering: Has a lens with a wider maximum aperture (f/1.4 vs f/1.8).
  • More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
  • Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
  • More affordable: Was introduced into a lower priced category (30 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year and 3 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the LX15 emerges as the winner of the match-up (7 : 4 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.

RX100 IV 04:07 LX15

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the RX100 IV or the LX15 handle or perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate. This is where reviews by experts come in. The following table reports the overall rankings of the cameras as published by some of the major camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.

Review scores
Camera camera
labs
dp
review
ephoto
zine
imaging
resource
photography
blog
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Sony RX100 IV (⇒ rgt) HiRec 85/100 Gold 4/5 4.5/5 4.5/5 2015 999discont. check
Panasonic LX15 (⇒ lft) HiRec 81/100 Silver 4/5 4.5/5 4.5/5 2016 699 latest check
Canon M5 (⇒ lft | rgt) Rec 82/100 Silver 4/5 4.5/5 4/5 2016 979 latest check
Canon M3 (⇒ lft | rgt) reviewed 75/100 4.5/5 4.5/5 4/5 2015 679discont. check
Canon G5 X (⇒ lft | rgt) HiRec 78/100 Silver 4.5/5 4/5 4.5/5 2015 799 latest check
Canon G7 X (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 3.5/5 4.5/5 2014 699discont. check
Leica Q Typ 116 (⇒ lft | rgt) - 80/100 Silver 4.5/5 - 4.5/5 2015 4,249 latest check
Panasonic TZ200 (⇒ lft | rgt) .. .. .. .. .. 2018 799 latest check
Panasonic TZ100 (⇒ lft | rgt) HiRec 82/100 Gold 4.5/5 4/5 4.5/5 2016 699discont. check
Panasonic FZ1000 (⇒ lft | rgt) HiRec 82/100 Gold 4.5/5 4.5/5 4.5/5 2014 899discont. check
Sony RX100 V (⇒ lft | rgt) HiRec 83/100 Silver 4/5 5/5 4.5/5 2016 999 latest check
Sony A6000 (⇒ lft | rgt) Rec 80/100 Gold 4.5/5 5/5 5/5 2014 599discont. check
Sony RX100 III (⇒ lft | rgt) HiRec 82/100 Gold 4.5/5 4.5/5 5/5 2014 799discont. check
Sony A5100 (⇒ lft | rgt) Rec - 4.5/5 4.5/5 5/5 2014 549 latest check
Sony A5000 (⇒ lft | rgt) Rec - 4.5/5 reviewed 4.5/5 2014 449discont. check
Sony RX100 II (⇒ lft | rgt) HiRec 79/100 Silver 4.5/5 5/5 4.5/5 2013 749discont. check

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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Other comparisons

In case you would like to check on the differences and similarities of other camera models, just use the search menu below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If the camera you are interested in is not available, kindly get in touch, and I will try to locate and add the respective data to the application.

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