Leica V-LUX 4 vs Sony RX100 III

The Leica V-LUX 4 and the Sony Cyber-shot DSC-RX100 III are two digital cameras that were revealed to the public, respectively, in September 2012 and May 2014. Both the V-LUX 4 and the RX100 III are fixed lens compact cameras that are based on a 1/2.3-inch (V-LUX 4) and an one-inch (RX100 III) sensor. The Leica has a resolution of 12 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

Leica V-LUX 4		Sony RX100 III
Fixed lens compact camera		Fixed lens compact camera
25-600mm f/2.8		24-70mm f/1.8-2.8
12 MP – 1/2.3" sensor		20 MP – 1" sensor
1080/60p Video		1080/60p Video
ISO 100-3,200 (100 - 6,400)		ISO 100-12,800 (80 - 25,600)
Electronic viewfinder (1312k dots)		Electronic viewfinder (1440k dots)
3.0" LCD – 460k dots		3.0" LCD – 1229k dots
Swivel screen (not touch-sensitive)		Tilting screen (no touchscreen)
12 shutter flaps per second		10 shutter flaps per second
540 shots per battery charge		320 shots per battery charge
125 x 87 x 110 mm, 588 g		102 x 58 x 41 mm, 290 g

Check V-LUX 4 offers at
ebay.com
Check RX100 III offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Leica V-LUX 4 and the Sony Cyber-shot DSC-RX100 III? 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

The side-by-side display below illustrates the physical size and weight of the Leica V-LUX 4 and the Sony RX100 III. 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 III is considerably smaller (46 percent) than the Leica V-LUX 4. Moreover, the RX100 III is substantially lighter (51 percent) than the V-LUX 4. In this context, it is worth noting that neither the V-LUX 4 nor the RX100 III are weather-sealed.

Concerning battery life, the V-LUX 4 gets 540 shots out of its Leica BP-DC12 battery, while the RX100 III can take 320 images on a single charge of its Sony NP-BX1 power pack. The power pack in the RX100 III can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Leica V-LUX 4	125 mm	87 mm	110 mm	588 g	540	n	Sep 2012	EUR 799	ebay.com
2.		Sony RX100 III	102 mm	58 mm	41 mm	290 g	320	n	May 2014	EUR 849	ebay.com
3.		Canon G1 X	117 mm	81 mm	65 mm	534 g	250	n	Jan 2012	EUR 749	ebay.com
4.		Canon G1 X Mark II	116 mm	74 mm	66 mm	553 g	240	n	Feb 2014	EUR 849	ebay.com
5.		Canon G5 X	112 mm	76 mm	44 mm	353 g	210	n	Oct 2015	EUR 789	ebay.com
6.		Canon G7 X	103 mm	60 mm	40 mm	304 g	210	n	Sep 2014	EUR 649	ebay.com
7.		Canon SX50	123 mm	87 mm	106 mm	595 g	315	n	Sep 2012	EUR 529	ebay.com
8.		Leica D-LUX 6	111 mm	68 mm	46 mm	298 g	330	n	Sep 2012	EUR 699	ebay.com
9.		Leica V-LUX 2	124 mm	80 mm	95 mm	520 g	410	n	Sep 2010	EUR 749	ebay.com
10.		Leica V-LUX 3	124 mm	81 mm	95 mm	540 g	410	n	Dec 2011	EUR 749	ebay.com
11.		Leica V-LUX Typ 114	137 mm	99 mm	131 mm	830 g	360	n	Sep 2014	EUR 1 099	ebay.com
12.		Leica X Vario	133 mm	73 mm	95 mm	680 g	450	n	Jun 2013	EUR 2 449	ebay.com
13.		Panasonic FZ150	124 mm	82 mm	92 mm	528 g	410	n	Aug 2011	EUR 529	ebay.com
14.		Panasonic FZ200	125 mm	87 mm	110 mm	588 g	540	n	Jul 2012	EUR 599	ebay.com
15.		Panasonic FZ1000	137 mm	99 mm	131 mm	831 g	360	n	Jun 2014	EUR 899	ebay.com
16.		Sony RX100 II	102 mm	58 mm	38 mm	281 g	350	n	Jun 2013	EUR 749	ebay.com
17.		Sony RX100 IV	102 mm	58 mm	41 mm	298 g	280	n	Jun 2015	EUR 1 149	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The RX100 III was launched at a somewhat lower price (by 16 percent) than the V-LUX 4, which makes it more attractive for photographers on a tight budget. 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.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 Leica V-LUX 4 features a 1/2.3-inch sensor and the Sony RX100 III an one-inch sensor. The sensor area in the RX100 III is 314 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 2.7. The sensor in the V-LUX 4 has a native 4:3 aspect ratio, while the one in the RX100 III offers a 3:2 aspect.

With 20MP, the RX100 III offers a higher resolution than the V-LUX 4 (12MP), but the RX100 III nevertheless has larger individual pixels (pixel pitch of 2.41μm versus 1.53μm for the V-LUX 4) due to its larger sensor. Moreover, the RX100 III is a somewhat more recent model (by 1 year and 7 months) than the V-LUX 4, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the V-LUX 4 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony RX100 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the RX100 III 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 Leica V-LUX 4 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

The Leica V-LUX 4 has a native sensitivity range from ISO 100 to ISO 3200, which can be extended to ISO 100-6400. The corresponding ISO settings for the Sony Cyber-shot DSC-RX100 III are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 80-25600.

Technology-wise, both cameras are equipped with BSI-CMOS (Backside Illuminated Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Leica V-LUX 4	1/2.3	12.0	4000	3000	1080/60p	19.8	11.1	501	43
2.		Sony RX100 III	1-inch	20.0	5472	3648	1080/60p	22.4	12.3	495	67
3.		Canon G1 X	1.5-inch	14.2	4352	3264	1080/24p	21.7	10.8	644	60
4.		Canon G1 X Mark II	1.5-inch	13.0	4160	3120	1080/30p	21.5	10.8	581	58
5.		Canon G5 X	1-inch	20.0	5472	3648	1080/60p	21.4	12.3	471	62
6.		Canon G7 X	1-inch	20.0	5472	3648	1080/60p	23.0	12.7	556	71
7.		Canon SX50	1/2.3	12.0	4000	3000	1080/24p	20.3	11.2	179	47
8.		Leica D-LUX 6	1/1.7	10.0	3648	2736	1080/60p	19.8	10.8	-303	43
9.		Leica V-LUX 2	1/2.3	14.0	4320	3240	1080/60i	19.4	10.7	321	39
10.		Leica V-LUX 3	1/2.3	12.0	4000	3000	1080/60p	19.7	11.0	430	42
11.		Leica V-LUX Typ 114	1-inch	20.0	5472	3648	4K/30p	21.6	11.7	127	60
12.		Leica X Vario	APS-C	16.1	4928	3272	1080/30p	23.4	12.7	1320	78
13.		Panasonic FZ150	1/2.3	12.0	4000	3000	1080/60p	19.4	10.9	132	40
14.		Panasonic FZ200	1/2.3	12.0	4000	3000	1080/60p	19.1	10.8	114	37
15.		Panasonic FZ1000	1-inch	20.0	5472	3648	4K/30p	22.1	11.7	517	64
16.		Sony RX100 II	1-inch	20.0	5472	3648	1080/60p	22.5	12.4	483	67
17.		Sony RX100 IV	1-inch	20.0	5472	3648	4K/30p	22.8	12.6	591	70
Note: DXO values in italics represent estimates based on sensor size and age.

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, and both provide the same movie specifications (1080/60p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the RX100 III offers a slightly higher resolution than the one in the V-LUX 4 (1440k vs 1312k dots). The following table reports on some other key feature differences and similarities of the Leica V-LUX 4, the Sony RX100 III, and comparable cameras.

Core Features

		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.		Leica V-LUX 4	1312	n	3.0 / 460	swivel	n	1/4000s	12.0/s	Y	Y
2.		Sony RX100 III	1440	n	3.0 / 1229	tilting	n	1/2000s	10.0/s	Y	Y
3.		Canon G1 X	optical	n	3.0 / 922	swivel	n	1/4000s	1.9/s	Y	Y
4.		Canon G1 X Mark II	optional	n	3.0 / 1040	tilting	Y	1/4000s	5.2/s	Y	Y
5.		Canon G5 X	2360	n	3.0 / 1040	swivel	Y	1/2000s	5.9/s	Y	Y
6.		Canon G7 X	none	n	3.0 / 1040	tilting	Y	1/2000s	6.5/s	Y	Y
7.		Canon SX50	202	n	3.0 / 461	swivel	n	1/2000s	2.2/s	Y	Y
8.		Leica D-LUX 6	optional	n	3.0 / 920	fixed	n	1/4000s	11.0/s	Y	Y
9.		Leica V-LUX 2	202	n	3.0 / 460	swivel	n	1/2000s	11.0/s	Y	Y
10.		Leica V-LUX 3	202	n	3.0 / 460	swivel	n	1/2000s	12.0/s	Y	Y
11.		Leica V-LUX Typ 114	2359	n	3.0 / 921	swivel	n	1/4000s	12.0/s	Y	Y
12.		Leica X Vario	optional	n	3.0 / 920	fixed	n	1/2000s	5.0/s	Y	n
13.		Panasonic FZ150	202	n	3.0 / 460	swivel	n	1/2000s	12.0/s	Y	Y
14.		Panasonic FZ200	1312	n	3.0 / 460	swivel	n	1/4000s	12.0/s	Y	Y
15.		Panasonic FZ1000	2359	n	3.0 / 921	swivel	n	1/4000s	12.0/s	Y	Y
16.		Sony RX100 II	optional	n	3.0 / 1229	tilting	n	1/2000s	10.0/s	Y	Y
17.		Sony RX100 IV	2359	n	3.0 / 1228	tilting	n	1/2000s	16.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

Both the V-LUX 4 and the RX100 III have zoom lenses built in. The V-LUX 4 has a 25-600mm f/2.8-2.8 optic and the RX100 III offers a 24-70mm f/1.8-2.8 (focal lengths in full frame equivalent terms). Hence, the Sony provides a wider angle of view at the short end than the Leica, but less tele-photo reach at the long end. The RX100 III offers the faster maximum aperture.

The V-LUX 4 writes its imaging data to SDXC cards, while the RX100 III 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.

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 Leica V-LUX 4 and Sony Cyber-shot DSC-RX100 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections

		Camera Model	Hotshoe Port	Internal Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Leica V-LUX 4	Y	stereo / mono	Y	-	mini	2.0	-	-	-
2.		Sony RX100 III	-	stereo / mono	-	-	micro	2.0	Y	Y	-
3.		Canon G1 X	Y	stereo / mono	-	-	mini	2.0	-	-	-
4.		Canon G1 X Mark II	Y	stereo / mono	-	-	mini	2.0	Y	Y	-
5.		Canon G5 X	Y	stereo / mono	-	-	mini	2.0	Y	Y	-
6.		Canon G7 X	-	stereo / mono	-	-	micro	2.0	Y	Y	-
7.		Canon SX50	Y	stereo / mono	-	-	mini	2.0	-	-	-
8.		Leica D-LUX 6	Y	stereo / mono	-	-	mini	2.0	-	-	-
9.		Leica V-LUX 2	Y	stereo / mono	-	-	mini	2.0	-	-	-
10.		Leica V-LUX 3	Y	stereo / -	-	-	mini	2.0	-	-	-
11.		Leica V-LUX Typ 114	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-
12.		Leica X Vario	Y	stereo / mono	-	-	mini	2.0	-	-	-
13.		Panasonic FZ150	Y	stereo / -	-	-	mini	2.0	-	-	-
14.		Panasonic FZ200	Y	stereo / mono	Y	-	mini	2.0	-	-	-
15.		Panasonic FZ1000	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-
16.		Sony RX100 II	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
17.		Sony RX100 IV	-	stereo / mono	-	-	micro	2.0	Y	Y	-

It is notable that the V-LUX 4 has a hotshoe, while the RX100 III does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Both the V-LUX 4 and the RX100 III have been discontinued, but can regularly be found used on ebay. The V-LUX 4 was replaced by the Leica V-LUX Typ 114, while the RX100 III was followed by the Sony RX100 IV. Further information on the features and operation of the V-LUX 4 and RX100 III can be found, respectively, in the Leica V-LUX 4 Manual (free pdf) or the online Sony RX100 III Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Leica V-LUX 4 and the Sony RX100 III? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Arguments in favor of the Leica V-LUX 4:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better sound: Can connect to an external microphone for higher quality sound recording.
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
• Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
• More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
• Longer lasting: Can take more shots (540 versus 320) on a single battery charge.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
• More heavily discounted: Has been on the market for longer (launched in September 2012).

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

• More detail: Has more megapixels (20 vs 12MP), which boosts linear resolution by 32%.
• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Better image quality: Is equipped with a larger and more technologically advanced sensor.
• Richer colors: The sensor size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.59x vs 0.46x).
• More detailed LCD: Has a higher resolution rear screen (1229k vs 460k dots).
• Better light gathering: Has a lens with a wider maximum aperture (f/1.8 vs f/2.8).
• Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
• More compact: Is smaller (102x58mm vs 125x87mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 298g or 51 percent) and is thus easier to take along.
• Easier travel charging: Can be conveniently charged via its USB port.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More affordable: Was released into a lower priced segment (16 percent cheaper at launch).
• More modern: Was introduced somewhat (1 year and 7 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the RX100 III is the clear winner of the contest (17 : 10 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Leica V-LUX 4 and the Sony RX100 III place the cameras among the top in their class? Find out in the latest Best Superzoom 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 V-LUX 4 or the RX100 III. 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 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 (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.

Expert Camera Reviews

		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price	Street Price
1.		Leica V-LUX 4	..	..	..	..	..	..	Sep 2012	EUR 799	ebay.com
2.		Sony RX100 III	5/5	+ +	..	82/100	4.5/5	5/5	May 2014	EUR 849	ebay.com
3.		Canon G1 X	5/5	+	..	76/100	4/5	4.5/5	Jan 2012	EUR 749	ebay.com
4.		Canon G1 X Mark II	3/5	+	..	77/100	4/5	4.5/5	Feb 2014	EUR 849	ebay.com
5.		Canon G5 X	5/5	+ +	..	78/100	4.5/5	4.5/5	Oct 2015	EUR 789	ebay.com
6.		Canon G7 X	4/5	+ +	..	77/100	4.5/5	4.5/5	Sep 2014	EUR 649	ebay.com
7.		Canon SX50	3/5	+ +	..	72/100	4.5/5	4.5/5	Sep 2012	EUR 529	ebay.com
8.		Leica D-LUX 6	..	..	..	..	4/5	4/5	Sep 2012	EUR 699	ebay.com
9.		Leica V-LUX 2	..	..	..	..	..	..	Sep 2010	EUR 749	ebay.com
10.		Leica V-LUX 3	..	..	..	..	..	..	Dec 2011	EUR 749	ebay.com
11.		Leica V-LUX Typ 114	..	..	..	..	..	5/5	Sep 2014	EUR 1 099	ebay.com
12.		Leica X Vario	3/5	..	..	..	4/5	4/5	Jun 2013	EUR 2 449	ebay.com
13.		Panasonic FZ150	3/5	+ +	..	76/100	4/5	4.5/5	Aug 2011	EUR 529	ebay.com
14.		Panasonic FZ200	3/5	+ +	..	80/100	4.5/5	4.5/5	Jul 2012	EUR 599	ebay.com
15.		Panasonic FZ1000	4/5	+ +	..	82/100	4.5/5	4.5/5	Jun 2014	EUR 899	ebay.com
16.		Sony RX100 II	5/5	+ +	..	79/100	4.5/5	4.5/5	Jun 2013	EUR 749	ebay.com
17.		Sony RX100 IV	4.5/5	+ +	..	85/100	4/5	4.5/5	Jun 2015	EUR 1 149	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

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