Fujifilm X20 vs Leica S3

The Fujifilm X20 and the Leica S3 are two digital cameras that were announced, respectively, in January 2013 and September 2018. The X20 is a fixed lens compact, while the S3 is a DSLR. The cameras are based on a 2/3 (X20) and a medium format (S3) sensor. The Fujifilm has a resolution of 12 megapixels, whereas the Leica provides 64 MP.

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

Headline Specifications

Fujifilm X20		Leica S3
Fixed lens compact camera		Digital single lens reflex
28-112mm f/2.0-2.8		Leica S mount lenses
12 MP – Two Thirds sensor		64 MP – Medium Format sensor
1080/60p Video		4K/24p Video
ISO 100-12,800		ISO 100-50,000
Optical viewfinder		Optical viewfinder
2.8" LCD – 460k dots		3.0" LCD – 922k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
12 shutter flaps per second		3 shutter flaps per second
not weather sealed		Weathersealed body
117 x 70 x 57 mm, 353 g		160 x 120 x 80 mm, 1260 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X20 and the Leica S3? 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 Fujifilm X20 and the Leica S3 is provided in the side-by-side display below. The two cameras are presented according to their relative size. 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.

The X20 can be obtained in two different colors (black, silver), while the S3 is only available in black.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Leica S3 is considerably larger (134 percent) than the Fujifilm X20. It is noteworthy in this context that the S3 is splash and dust-proof, while the X20 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X20 has a lens built in, whereas the S3 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the X20 gets 270 shots out of its Fujifilm NP-50 battery, while the S3 can take .. images on a single charge of its Leica BP-PRO1 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price (USD)	Street Price
1.		Fujifilm X20	117 mm	70 mm	57 mm	353 g	270	n	Jan 2013	599	ebay.com
2.		Leica S3	160 mm	120 mm	80 mm	1260 g	..	Y	Sep 2018	18,995	ebay.com
3.		Canon G7 X	103 mm	60 mm	40 mm	304 g	210	n	Sep 2014	699	ebay.com
4.		Canon G15	107 mm	76 mm	40 mm	352 g	350	n	Sep 2012	499	ebay.com
5.		Canon G16	109 mm	76 mm	40 mm	356 g	360	n	Aug 2013	549	ebay.com
6.		Fujifilm X10	117 mm	70 mm	57 mm	350 g	270	n	Sep 2011	599	ebay.com
7.		Fujifilm X30	119 mm	72 mm	60 mm	423 g	470	n	Aug 2014	599	ebay.com
8.		Fujifilm XQ1	100 mm	59 mm	33 mm	206 g	240	n	Oct 2013	499	ebay.com
9.		Leica D-LUX 6	111 mm	68 mm	46 mm	298 g	330	n	Sep 2012	699	ebay.com
10.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	6,595	ebay.com
11.		Leica S2	160 mm	120 mm	80 mm	1410 g	..	Y	Sep 2008	22,995	ebay.com
12.		Leica S Typ 006	160 mm	120 mm	80 mm	1260 g	..	Y	Sep 2012	21,950	ebay.com
13.		Leica S-E Typ 006	160 mm	120 mm	80 mm	1260 g	..	Y	Sep 2014	16,900	ebay.com
14.		Leica S Typ 007	160 mm	120 mm	80 mm	1260 g	..	Y	Sep 2014	24,490	ebay.com
15.		Nikon P7800	119 mm	78 mm	50 mm	399 g	350	n	Sep 2013	549	ebay.com
16.		Olympus Stylus 1	116 mm	87 mm	57 mm	402 g	410	n	Oct 2013	699	ebay.com
17.		Panasonic LX7	111 mm	68 mm	46 mm	298 g	330	n	Jul 2012	499	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 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 X20 was launched at a lower price than the S3, 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.

Sensor comparison

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 Fujifilm X20 features a 2/3 sensor and the Leica S3 a medium format sensor. The sensor area in the S3 is 2228 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 3.9 and 0.8. The sensor in the X20 has a native 4:3 aspect ratio, while the one in the S3 offers a 3:2 aspect.

With 64MP, the S3 offers a higher resolution than the X20 (12MP), but the S3 nevertheless has larger individual pixels (pixel pitch of 4.59μm versus 2.20μm for the X20) due to its larger sensor. Moreover, the S3 is a much more recent model (by 5 years and 8 months) than the X20, and its sensor will 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Leica S3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the S3 for good quality output (200 dots per inch) amounts to 49 x 32.7 inches or 124.5 x 83 cm, for very good quality (250 dpi) 39.2 x 26.1 inches or 99.6 x 66.4 cm, and for excellent quality (300 dpi) 32.7 x 21.8 inches or 83 x 55.3 cm. The corresponding values for the Fujifilm X20 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 X20 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Fujifilm X20 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Leica S3 are ISO 100 to ISO 50000 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. The X20 uses Fujifilm's X-Trans layout of photosites, while the S3 employs the more common Bayer array.

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 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.		Fujifilm X20	2/3	12.0	4000	3000	1080/60p	20.1	10.9	-462	46
2.		Leica S3	Medium Format	64.0	9800	6533	4K/24p	25.6	14.4	3143	98
3.		Canon G7 X	1-inch	20.0	5472	3648	1080/60p	23.0	12.7	556	71
4.		Canon G15	1/1.7	12.0	4000	3000	1080/24p	19.9	11.5	165	46
5.		Canon G16	1/1.7	12.0	4000	3000	1080/60p	21.0	11.7	230	54
6.		Fujifilm X10	2/3	12.0	4000	3000	1080/30p	20.5	11.3	245	50
7.		Fujifilm X30	2/3	12.0	4000	3000	1080/60p	20.4	11.2	-312	49
8.		Fujifilm XQ1	2/3	12.0	4000	3000	1080/60p	20.3	11.0	-390	47
9.		Leica D-LUX 6	1/1.7	10.0	3648	2736	1080/60p	19.8	10.8	-303	43
10.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
11.		Leica S2	Medium Format	37.5	7500	5000	none	23.9	12.5	2224	82
12.		Leica S Typ 006	Medium Format	37.5	7500	5000	none	23.9	12.2	824	76
13.		Leica S-E Typ 006	Medium Format	37.5	7500	5000	none	25.1	13.7	2763	93
14.		Leica S Typ 007	Medium Format	37.5	7500	5000	4K/24p	25.1	13.7	2763	93
15.		Nikon P7800	1/1.7	12.0	4000	3000	1080/30p	21.2	11.7	200	54
16.		Olympus Stylus 1	1/1.7	11.8	3968	2976	1080/30p	20.7	11.6	179	51
17.		Panasonic LX7	1/1.7	10.0	3648	2736	1080/60p	20.7	11.7	147	50
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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the S3 provides a better video resolution than the X20. It can shoot movie footage at 4K/24p, while the Fujifilm is limited to 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The X20 and the S3 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The adjacent table lists some of the other core features of the Fujifilm X20 and Leica S3 along with similar information for a selection of comparators.

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.		Fujifilm X20	optical	n	2.8 / 460	fixed	n	1/4000s	12.0/s	Y	Y
2.		Leica S3	optical	Y	3.0 / 922	fixed	n	1/4000s	3.0/s	n	n
3.		Canon G7 X	none	n	3.0 / 1040	tilting	Y	1/2000s	6.5/s	Y	Y
4.		Canon G15	optical	n	3.0 / 922	fixed	n	1/4000s	2.1/s	Y	Y
5.		Canon G16	optical	n	3.0 / 922	fixed	n	1/4000s	2.2/s	Y	Y
6.		Fujifilm X10	optical	n	2.8 / 460	fixed	n	1/4000s	10.0/s	Y	Y
7.		Fujifilm X30	2360	n	3.0 / 920	tilting	n	1/4000s	12.0/s	Y	Y
8.		Fujifilm XQ1	none	n	3.0 / 920	fixed	n	1/4000s	12.0/s	Y	Y
9.		Leica D-LUX 6	optional	n	3.0 / 920	fixed	n	1/4000s	11.0/s	Y	Y
10.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
11.		Leica S2	optical	Y	3.0 / 460	fixed	n	1/4000s	1.5/s	n	n
12.		Leica S Typ 006	optical	Y	3.0 / 922	fixed	n	1/4000s	1.5/s	n	n
13.		Leica S-E Typ 006	optical	Y	3.0 / 922	fixed	n	1/4000s	1.5/s	n	n
14.		Leica S Typ 007	optical	Y	3.0 / 922	fixed	n	1/4000s	3.5/s	n	n
15.		Nikon P7800	921	n	3.0 / 921	swivel	n	1/4000s	8.0/s	Y	Y
16.		Olympus Stylus 1	1440	n	3.0 / 1040	tilting	Y	1/2000s	7.0/s	Y	Y
17.		Panasonic LX7	optional	n	3.0 / 920	fixed	n	1/4000s	11.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The X20 has one, while the S3 does not. While the built-in flash of the X20 is not very powerful, it can at times be useful as a fill-in light.

The X20 writes its imaging data to SDXC cards, while the S3 uses Compact Flash or SDXC cards. The S3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the X20 only has one slot. The S3 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the X20 cannot take advantage of Ultra High Speed SD cards.

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 Fujifilm X20 and Leica S3 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.		Fujifilm X20	Y	stereo / mono	-	-	micro	2.0	-	-	-
2.		Leica S3	Y	stereo / mono	Y	Y	mini	3.0	Y	-	-
3.		Canon G7 X	-	stereo / mono	-	-	micro	2.0	Y	Y	-
4.		Canon G15	Y	stereo / mono	-	-	mini	2.0	-	-	-
5.		Canon G16	Y	stereo / mono	-	-	mini	2.0	Y	-	-
6.		Fujifilm X10	Y	stereo / mono	-	-	mini	2.0	-	-	-
7.		Fujifilm X30	Y	stereo / mono	-	-	micro	2.0	Y	-	-
8.		Fujifilm XQ1	-	stereo / mono	-	-	micro	2.0	Y	-	-
9.		Leica D-LUX 6	Y	stereo / mono	-	-	mini	2.0	-	-	-
10.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
11.		Leica S2	Y	- / -	-	-	mini	2.0	-	-	-
12.		Leica S Typ 006	Y	- / -	-	-	mini	2.0	-	-	-
13.		Leica S-E Typ 006	Y	- / -	-	-	mini	2.0	-	-	-
14.		Leica S Typ 007	Y	stereo / mono	Y	Y	mini	3.0	Y	-	-
15.		Nikon P7800	Y	stereo / mono	Y	-	mini	2.0	-	-	-
16.		Olympus Stylus 1	Y	stereo / mono	-	-	micro	2.0	Y	-	-
17.		Panasonic LX7	Y	stereo / mono	-	-	mini	2.0	-	-	-

It is notable that the S3 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the X20 does not provide wifi capability.

Studio photographers will appreciate that the Leica S3 (unlike the X20) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the S3 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the X20 and the S3 have been discontinued, but can regularly be found used on ebay. The X20 was replaced by the Fujifilm X30, while the S3 does not have a direct successor. Further information on the features and operation of the X20 and S3 can be found, respectively, in the Fujifilm X20 Manual (free pdf) or the online Leica S3 Manual.

Review summary

So how do things add up? Is there a clear favorite between the Fujifilm X20 and the Leica S3? Which camera is better? The listing below highlights the relative strengths of the two models.

Arguments in favor of the Fujifilm X20:

• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• Faster burst: Shoots at higher frequency (12 vs 3 flaps/sec) to capture the decisive moment.
• Ready to shoot: Comes with a built-in lens, while the S3 requires a separate lens.
• More compact: Is smaller (117x70mm vs 160x120mm) and thus needs less room in the bag.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the S3).
• Sharper images: Has hand-shake reducing image stabilization built-in.
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More heavily discounted: Has been available for much longer (launched in January 2013).

Advantages of the Leica S3:

• More detail: Has more megapixels (64 vs 12MP), which boosts linear resolution by 136%.
• 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.
• Better video: Provides higher definition movie capture (4K/24p vs 1080/60p).
• Better sound: Can connect to an external microphone for higher quality sound recording.
• Better sound control: Has a headphone port that enables audio monitoring while recording.
• Easier setting verification: Features a control panel on top to check shooting parameters.
• Larger screen: Has a bigger rear LCD (3.0" vs 2.8") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (922k vs 460k dots).
• More flexible: Makes it possible to change lenses and thus to use specialty optics.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Easier geotagging: Features an internal GPS sensor to log localization data.
• Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
• Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
• Faster buffer clearing: Has an SD card interface that supports the UHS-II standard.
• More prestigious: Has the Leica luxury appeal, which ensures a high resale value.
• More modern: Reflects 5 years and 8 months of technical progress since the X20 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the S3 is the clear winner of the contest (21 : 9 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro 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 Fujifilm X20 and the Leica S3 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR 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 incomplete and does no justice, for example, to the way the X20 or the S3 perform in practice. 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 (USD)	Street Price
1.		Fujifilm X20	4/5	+ +	..	77/100	4.5/5	5/5	Jan 2013	599	ebay.com
2.		Leica S3	..	..	..	..	..	..	Sep 2018	18,995	ebay.com
3.		Canon G7 X	4/5	+ +	..	77/100	4.5/5	4.5/5	Sep 2014	699	ebay.com
4.		Canon G15	4/5	+	..	76/100	4.5/5	4.5/5	Sep 2012	499	ebay.com
5.		Canon G16	4/5	+	..	..	4.5/5	4.5/5	Aug 2013	549	ebay.com
6.		Fujifilm X10	..	..	..	76/100	4/5	4.5/5	Sep 2011	599	ebay.com
7.		Fujifilm X30	4/5	..	..	76/100	4.5/5	4.5/5	Aug 2014	599	ebay.com
8.		Fujifilm XQ1	..	..	..	..	4.5/5	4.5/5	Oct 2013	499	ebay.com
9.		Leica D-LUX 6	..	..	..	..	4/5	4/5	Sep 2012	699	ebay.com
10.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	6,595	ebay.com
11.		Leica S2	..	..	..	..	..	..	Sep 2008	22,995	ebay.com
12.		Leica S Typ 006	..	..	..	..	..	..	Sep 2012	21,950	ebay.com
13.		Leica S-E Typ 006	..	..	..	..	..	..	Sep 2014	16,900	ebay.com
14.		Leica S Typ 007	4/5	..	..	..	..	..	Sep 2014	24,490	ebay.com
15.		Nikon P7800	3/5	..	..	..	4/5	4.5/5	Sep 2013	549	ebay.com
16.		Olympus Stylus 1	..	+ +	..	..	4.5/5	4.5/5	Oct 2013	699	ebay.com
17.		Panasonic LX7	3/5	+ +	..	75/100	4/5	4.5/5	Jul 2012	499	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

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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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 use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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