Fujifilm X20 vs X100S

The Fujifilm X20 and the Fujifilm X100S are two digital cameras that were announced in January 2013. Both the X20 and the X100S are fixed lens compact cameras that are based on a 2/3 (X20) and an APS-C (X100S) sensor. The X20 has a resolution of 12 megapixels, whereas the X100S provides 16 MP.

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

Headline Specifications

Fujifilm X20		Fujifilm X100S
Fixed lens compact camera		Fixed lens compact camera
28-112mm f/2.0-2.8		35mm f/2.0
12 MP – Two Thirds sensor		16 MP – APS-C sensor
1080/60p Video		1080/60p Video
ISO 100-12,800		ISO 200-6,400 (100 - 25,600)
Optical viewfinder		Electronic viewfinder (2360k dots)
2.8" LCD – 460k dots		2.8" LCD – 460k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
12 shutter flaps per second		6 shutter flaps per second
270 shots per battery charge		330 shots per battery charge
117 x 70 x 57 mm, 353 g		127 x 74 x 54 mm, 445 g

Check X20 offers at
ebay.com
Check X100S offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X20 and the Fujifilm X100S? 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 Fujifilm X100S is provided in the side-by-side display below. 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 size dimensions are rounded to the nearest millimeter.

Both cameras are available in two different colors (black, silver).

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Fujifilm X100S is notably larger (15 percent) than the Fujifilm X20. Moreover, the X100S is markedly heavier (26 percent) than the X20. In this context, it is worth noting that neither the X20 nor the X100S are weather-sealed.

Concerning battery life, the X20 gets 270 shots out of its Fujifilm NP-50 battery, while the X100S can take 330 images on a single charge of its Fujifilm NP-95 power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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.		Fujifilm X100S	127 mm	74 mm	54 mm	445 g	330	n	Jan 2013	1,299	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 X100	126 mm	75 mm	54 mm	445 g	300	n	Sep 2010	1,199	ebay.com
9.		Fujifilm X100T	127 mm	74 mm	52 mm	440 g	330	n	Sep 2014	1,299	ebay.com
10.		Fujifilm X100F	127 mm	75 mm	52 mm	469 g	390	n	Jan 2017	1,299	ebay.com
11.		Fujifilm XQ1	100 mm	59 mm	33 mm	206 g	240	n	Oct 2013	499	ebay.com
12.		Leica D-LUX 6	111 mm	68 mm	46 mm	298 g	330	n	Sep 2012	699	ebay.com
13.		Leica X Typ 113	133 mm	73 mm	78 mm	486 g	350	n	Sep 2014	2,295	ebay.com
14.		Nikon Coolpix A	111 mm	64 mm	40 mm	299 g	230	n	Mar 2013	1,099	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 obviously take relative prices into account. 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 X20 was launched at a markedly lower price (by 54 percent) than the X100S, 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.

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 Fujifilm X100S an APS-C sensor. The sensor area in the X100S is 534 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 3.9 and 1.5. The sensor in the X20 has a native 4:3 aspect ratio, while the one in the X100S offers a 3:2 aspect.

With 16MP, the X100S offers a higher resolution than the X20 (12MP), but the X100S nevertheless has larger individual pixels (pixel pitch of 4.80μm versus 2.20μm for the X20) due to its larger sensor. It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. 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 Fujifilm X100S implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X100S for good quality output (200 dots per inch) amounts to 24.5 x 16.3 inches or 62.2 x 41.5 cm, for very good quality (250 dpi) 19.6 x 13.1 inches or 49.7 x 33.2 cm, and for excellent quality (300 dpi) 16.3 x 10.9 inches or 41.5 x 27.6 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 Fujifilm X20 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Fujifilm X100S are ISO 200 to ISO 6400, with the possibility to increase the ISO range to 100-25600.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use the X-Trans layout of photosites, which according to Fujifilm helps to minimize moiré.

Consistent information on actual sensor performance is available from DXO Mark for many 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 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.		Fujifilm X100S	APS-C	16.0	4896	3264	1080/60p	23.3	12.5	1329	75
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 X100	APS-C	12.2	4288	2848	720/30p	22.9	12.4	1001	73
9.		Fujifilm X100T	APS-C	16.0	4896	3264	1080/60p	23.6	12.8	1483	78
10.		Fujifilm X100F	APS-C	24.0	6000	4000	1080/60p	23.9	13.2	1704	81
11.		Fujifilm XQ1	2/3	12.0	4000	3000	1080/60p	20.3	11.0	-390	47
12.		Leica D-LUX 6	1/1.7	10.0	3648	2736	1080/60p	19.8	10.8	-303	43
13.		Leica X Typ 113	APS-C	16.1	4928	3264	1080/30p	23.6	12.8	1491	78
14.		Nikon Coolpix A	APS-C	16.1	4928	3264	1080/30p	23.4	13.8	1164	80
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, and both provide the same movie specifications (1080/60p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the X100S has an electronic viewfinder (2360k dots), while the X20 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The table below summarizes some of the other core capabilities of the Fujifilm X20 and Fujifilm X100S in connection with corresponding information for a sample of similar 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.		Fujifilm X20	optical	n	2.8 / 460	fixed	n	1/4000s	12.0/s	Y	Y
2.		Fujifilm X100S	2360	n	2.8 / 460	fixed	n	1/4000s	6.0/s	Y	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 X100	1440	n	2.8 / 460	fixed	n	1/4000s	5.0/s	Y	n
9.		Fujifilm X100T	2360	n	3.0 / 1040	fixed	n	1/4000s	6.0/s	Y	n
10.		Fujifilm X100F	2360	n	3.0 / 1040	fixed	n	1/4000s	8.0/s	Y	n
11.		Fujifilm XQ1	none	n	3.0 / 920	fixed	n	1/4000s	12.0/s	Y	Y
12.		Leica D-LUX 6	optional	n	3.0 / 920	fixed	n	1/4000s	11.0/s	Y	Y
13.		Leica X Typ 113	optional	n	3.0 / 920	fixed	n	1/2000s	5.0/s	Y	n
14.		Nikon Coolpix A	optional	n	3.0 / 921	fixed	n	1/2000s	4.0/s	Y	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.

The X20 is equipped with a zoom lens, while the X100S comes with a built-in prime. The X20 has a 28-112mm f/2.0-2.8 optic and the X100S offers a 35mm f/2.0 (focal lengths in full frame equivalent terms). Hence, the X20 provides a wider angle of view at the short end, as well as more tele-photo reach at the long end than the X100S. Both cameras offer the same maximum aperture.

Concerning the storage of imaging data, both the X20 and the X100S write their files to SDXC cards. The X100S supports UHS-I cards (Ultra High Speed data transfer of up to 104 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 Fujifilm X100S 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.		Fujifilm X100S	Y	stereo / mono	-	-	micro	2.0	-	-	-
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 X100	Y	stereo / -	-	-	mini	2.0	-	-	-
9.		Fujifilm X100T	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
10.		Fujifilm X100F	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
11.		Fujifilm XQ1	-	stereo / mono	-	-	micro	2.0	Y	-	-
12.		Leica D-LUX 6	Y	stereo / mono	-	-	mini	2.0	-	-	-
13.		Leica X Typ 113	Y	stereo / mono	-	-	mini	2.0	-	-	-
14.		Nikon Coolpix A	Y	stereo / mono	-	-	-	2.0	-	-	-
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	-	-	-

Both the X20 and the X100S have been discontinued, but can regularly be found used on ebay. The X20 was replaced by the Fujifilm X30, while the X100S was followed by the Fujifilm X100T. Further information on the features and operation of the X20 and X100S can be found, respectively, in the Fujifilm X20 Manual (free pdf) or the online Fujifilm X100S Manual.

Review summary

So how do things add up? Is the Fujifilm X20 better than the Fujifilm X100S or vice versa? A synthesis of the relative strong points of each of the models is listed below.

Reasons to prefer the Fujifilm X20:

• Brighter framing: Features an optical viewfinder for clear, lag-free composition.
• Faster burst: Shoots at higher frequency (12 vs 6 flaps/sec) to capture the decisive moment.
• Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
• More compact: Is smaller (117x70mm vs 127x74mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 92g or 21 percent) and hence easier to carry around.
• Sharper images: Has hand-shake reducing image stabilization built-in.
• More affordable: Was introduced into a lower priced category (54 percent cheaper at launch).

Advantages of the Fujifilm X100S:

• More detail: Has more megapixels (16 vs 12MP), which boosts linear resolution by 18%.
• Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
• Richer colors: The pixel size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
• More framing info: Has an electronic viewfinder that displays shooting data.
• Longer lasting: Gets more shots (330 versus 270) out of a single battery charge.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.

If the number of relative strengths (bullet points above) is taken as a guide, the X100S comes out slightly ahead of the X20 (8 : 7 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 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 Fujifilm X20 and the Fujifilm X100S place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Prime Lens Compact Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the X20 and the X100S in practical situations. 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.

Expert reviews

This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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 (USD)	Street Price
1.		Fujifilm X20	4/5	+ +	..	77/100	4.5/5	5/5	Jan 2013	599	ebay.com
2.		Fujifilm X100S	5/5	+ +	..	81/100	4.5/5	5/5	Jan 2013	1,299	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 X100	3/5	..	..	75/100	4/5	5/5	Sep 2010	1,199	ebay.com
9.		Fujifilm X100T	5/5	+	..	81/100	4.5/5	5/5	Sep 2014	1,299	ebay.com
10.		Fujifilm X100F	5/5	+	3.9/5	83/100	4.5/5	4.5/5	Jan 2017	1,299	ebay.com
11.		Fujifilm XQ1	..	..	..	..	4.5/5	4.5/5	Oct 2013	499	ebay.com
12.		Leica D-LUX 6	..	..	..	..	4/5	4/5	Sep 2012	699	ebay.com
13.		Leica X Typ 113	3.5/5	..	..	..	3.5/5	4/5	Sep 2014	2,295	ebay.com
14.		Nikon Coolpix A	4/5	+	..	75/100	4/5	4/5	Mar 2013	1,099	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 review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Check X20 offers at
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Check X100S offers at
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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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