Sony RX100 IV versus Panasonic LX100
The Sony Cyber-shot DSC-RX100 IV and the Panasonic Lumix DMC-LX100 are two digital cameras that were announced, respectively, in June 2015 and September 2014. Both the RX100 IV and the LX100 are fixed lens compact cameras that are based on an one-inch (RX100 IV) and a Four Thirds (LX100) sensor. The Sony has a resolution of 20 megapixel, whereas the Panasonic provides 12.7 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 RX100 IV vs Panasonic LX100
An illustration of the physical size and weight of the Sony RX100 IV and the Panasonic LX100 is provided in the side-by-side display below. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions 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 RX100 IV – represents the basis or 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic LX100 is notably larger (28 percent) than the Sony RX100 IV. Moreover, the LX100 is markedly heavier (32 percent) than the RX100 IV. In this context, it is worth noting that neither the RX100 IV nor the LX100 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 camera comparisons there.
|Camera Body Specifications
|Sony RX100 IV (⇒ rgt)||102 mm||58 mm||41 mm||298 g||280||no||2015||999||discont.||check|
|Panasonic LX100 (⇒ lft)||115 mm||66 mm||55 mm||393 g||300||no||2014||899||latest||check|
|Canon G3 X (⇒ lft | rgt)||123 mm||77 mm||105 mm||733 g||300||YES||2015||999||latest||check|
|Canon G5 X (⇒ lft | rgt)||112 mm||76 mm||44 mm||353 g||210||no||2015||799||latest||check|
|Canon G1 X Mark II (⇒ lft | rgt)||116 mm||74 mm||66 mm||553 g||240||no||2014||799||latest||check|
|Canon G7 X (⇒ lft | rgt)||103 mm||60 mm||40 mm||304 g||210||no||2014||699||discont.||check|
|Fujifilm X30 (⇒ lft | rgt)||119 mm||72 mm||60 mm||423 g||470||no||2014||599||latest||check|
|Panasonic ZS100 (⇒ lft | rgt)||111 mm||65 mm||44 mm||312 g||300||no||2016||699||discont.||check|
|Panasonic FZ1000 (⇒ lft | rgt)||137 mm||99 mm||131 mm||831 g||360||no||2014||899||discont.||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||599||discont.||check|
|Sony RX100 III (⇒ lft | rgt)||102 mm||58 mm||41 mm||290 g||320||no||2014||799||discont.||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||449||discont.||check|
|Sony RX100 II (⇒ lft | rgt)||102 mm||58 mm||38 mm||281 g||350||no||2013||749||discont.||check|
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The LX100 was somewhat cheaper (by 10 percent) than the RX100 IV at launch, but both cameras fall into the same price category. 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: Sony RX100 IV vs Panasonic LX100
The size of the sensor inside a digital camera is one of the key determinants 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. 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 Sony RX100 IV features an one-inch sensor and the Panasonic LX100 a Four Thirds sensor. The sensor area in the LX100 is 94 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 2.0. The sensor in the RX100 IV has a native 3:2 aspect ratio, while the one in the LX100 offers a 4:3 aspect.
Despite having a smaller sensor, the Sony RX100 IV offers a higher resolution of 20 megapixel, compared with 12.7 MP of the Panasonic LX100. This megapixel 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 4.21μm for the LX100). However, it should be noted that the RX100 IV is a somewhat more recent model (by 8 months) than the LX100, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.
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 image quality. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Sony RX100 IV (⇒ rgt)||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|Panasonic LX100 (⇒ lft)||Four Thirds||12.7||4112||3088||4K/30p||22.3||12.5||553||67|
|Canon G3 X (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|Canon G5 X (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||-||-||-||-|
|Canon G1 X Mark II (⇒ lft | rgt)||1.5-inch||13.0||4160||3120||1080/30p||21.5||10.8||581||58|
|Canon G7 X (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Fujifilm X30 (⇒ lft | rgt)||2/3||12.0||4000||3000||1080/60p||-||-||-||-|
|Panasonic ZS100 (⇒ 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 are not only capable of taking still images, but can also record movies. 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 (4K/30p).
Feature comparison: Sony RX100 IV vs Panasonic LX100
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 LX100 offers a higher resolution than the one in the RX100 IV (2764k vs 2359k dots). The adjacent table lists some of the other core features of the Sony RX100 IV and Panasonic LX100 along with similar information for a selection of comparators. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Sony RX100 IV (⇒ rgt)||2359||no||3.0||1228||tilting||no||2000||16.0||10.2||YES|
|Panasonic LX100 (⇒ lft)||2764||no||3.0||921||fixed||no||4000||11.0||no||YES|
|Canon G3 X (⇒ lft | rgt)||no||no||3.2||1620||tilting||YES||2000||5.9||6.8||YES|
|Canon G5 X (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||2000||5.9||7||YES|
|Canon G1 X Mark II (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||5.2||6.8||YES|
|Canon G7 X (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||2000||6.5||7||YES|
|Fujifilm X30 (⇒ lft | rgt)||2360||no||3.0||920||tilting||no||4000||12.0||7||YES|
|Panasonic ZS100 (⇒ 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 LX100 have zoom lenses build in. The RX100 IV has a 24-70mm f/1.8-2.8 optic and the LX100 offers a 24-75mm f/1.7-2.8 (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 LX100 offers the faster maximum aperture.
The LX100 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.
Review summary: Sony RX100 IV vs Panasonic LX100
So how do things add up? Is there a clear favorite between the Sony RX100 IV and the Panasonic LX100? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Sony Cyber-shot DSC-RX100 IV:
- More detail: Offers more megapixels (20 vs 12.7MP) with a 28% higher linear resolution.
- More detailed LCD: Has a higher resolution rear screen (1228k vs 921k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster burst: Shoots at higher frequency (16 vs 11 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (102x58mm vs 115x66mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 95g or 24 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More modern: Is somewhat more recent (announced 8 months after the LX100).
Advantages of the Panasonic Lumix DMC-LX100:
- More detailed viewfinder: Has higher resolution electronic viewfinder (2764k vs 2359k dots).
- 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/1.7 vs f/1.8).
- More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
- More heavily discounted: Has been on the market for longer (launched in September 2014).
If the count of relative strengths (bullet points above) is taken as a measure, the RX100 IV emerges as the winner of the contest (8 : 5 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.
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 LX100 handle or perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable. This is where reviews by experts come in. The table below summarizes the assessments of some of the best known camera review sites. The full reviews are available, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Sony RX100 IV (⇒ rgt)||HiRec||85/100 Gold||4/5||4.5/5||4.5/5||2015||999||discont.||check|
|Panasonic LX100 (⇒ lft)||HiRec||85/100 Gold||5/5||4/5||5/5||2014||899||latest||check|
|Canon G3 X (⇒ lft | rgt)||Rec||-||4.5/5||3.5/5||4/5||2015||999||latest||check|
|Canon G5 X (⇒ lft | rgt)||HiRec||78/100 Silver||4.5/5||4/5||4.5/5||2015||799||latest||check|
|Canon G1 X Mark II (⇒ lft | rgt)||Rec||77/100 Silver||4/5||4/5||4.5/5||2014||799||latest||check|
|Canon G7 X (⇒ lft | rgt)||HiRec||77/100 Silver||4.5/5||3.5/5||4.5/5||2014||699||discont.||check|
|Fujifilm X30 (⇒ lft | rgt)||-||76/100||4.5/5||4/5||4.5/5||2014||599||latest||check|
|Panasonic ZS100 (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4/5||4.5/5||2016||699||discont.||check|
|Panasonic FZ1000 (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||4.5/5||2014||899||discont.||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||599||discont.||check|
|Sony RX100 III (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||5/5||2014||799||discont.||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||449||discont.||check|
|Sony RX100 II (⇒ lft | rgt)||HiRec||79/100 Silver||4.5/5||5/5||4.5/5||2013||749||discont.||check|
The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.
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