Fujifilm X100S vs Panasonic G5

The Fujifilm X100S and the Panasonic Lumix DMC-G5 are two digital cameras that were revealed to the public, respectively, in January 2013 and July 2012. The X100S is a fixed lens compact, while the G5 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (X100S) and a Four Thirds (G5) sensor. The Fujifilm has a resolution of 16 megapixels, whereas the Panasonic provides 15.9 MP.

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

Headline Specifications

Fujifilm X100S		Panasonic G5
Fixed lens compact camera		Mirrorless system camera
35mm f/2.0		Micro Four Thirds lenses
16 MP – APS-C sensor		15.9 MP – Four Thirds sensor
1080/60p Video		1080/60p Video
ISO 200-6,400 (100 - 25,600)		ISO 160-12,800
Electronic viewfinder (2360k dots)		Electronic viewfinder (1440k dots)
2.8" LCD – 460k dots		3.0" LCD – 920k dots
Fixed screen (not touch-sensitive)		Swivel touchscreen
6 shutter flaps per second		6 shutter flaps per second
330 shots per battery charge		320 shots per battery charge
127 x 74 x 54 mm, 445 g		120 x 83 x 71 mm, 396 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X100S and the Panasonic Lumix DMC-G5? 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 physical size and weight of the Fujifilm X100S and the Panasonic G5 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth 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 Panasonic G5 is notably larger (6 percent) than the Fujifilm X100S. In this context, it is worth noting that neither the X100S nor the G5 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X100S has a lens built in, whereas the G5 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the G5 and their specifications in the Micro Four Thirds Lens Catalog.

Concerning battery life, the X100S gets 330 shots out of its Fujifilm NP-95 battery, while the G5 can take 320 images on a single charge of its Panasonic DMW-BLC12 power pack.

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.		Fujifilm X100S	127 mm	74 mm	54 mm	445 g	330	n	Jan 2013	US$ 1 299	ebay.com
2.		Panasonic G5	120 mm	83 mm	71 mm	396 g	320	n	Jul 2012	US$ 599	ebay.com
3.		Canon G1 X	117 mm	81 mm	65 mm	534 g	250	n	Jan 2012	US$ 799	ebay.com
4.		Fujifilm X-Pro1	140 mm	82 mm	43 mm	450 g	300	n	Jan 2012	US$ 1 699	ebay.com
5.		Fujifilm X-T1	129 mm	90 mm	47 mm	440 g	350	Y	Jan 2014	US$ 1 299	ebay.com
6.		Fujifilm X-T10	118 mm	83 mm	41 mm	381 g	350	n	May 2015	US$ 799	ebay.com
7.		Fujifilm X30	119 mm	72 mm	60 mm	423 g	470	n	Aug 2014	US$ 599	ebay.com
8.		Fujifilm X100	126 mm	75 mm	54 mm	445 g	300	n	Sep 2010	US$ 1 199	ebay.com
9.		Fujifilm X100T	127 mm	74 mm	52 mm	440 g	330	n	Sep 2014	US$ 1 299	ebay.com
10.		Fujifilm X100F	127 mm	75 mm	52 mm	469 g	390	n	Jan 2017	US$ 1 299	ebay.com
11.		Leica X Typ 113	133 mm	73 mm	78 mm	486 g	350	n	Sep 2014	US$ 2 299	ebay.com
12.		Nikon Coolpix A	111 mm	64 mm	40 mm	299 g	230	n	Mar 2013	US$ 1 099	ebay.com
13.		Panasonic G3	115 mm	84 mm	47 mm	336 g	270	n	May 2011	US$ 599	ebay.com
14.		Panasonic G6	122 mm	85 mm	71 mm	390 g	340	n	Apr 2013	US$ 599	ebay.com
15.		Panasonic GF6	111 mm	65 mm	38 mm	323 g	340	n	Apr 2013	US$ 499	ebay.com
16.		Panasonic GX1	116 mm	68 mm	39 mm	318 g	320	n	Nov 2011	US$ 699	ebay.com
17.		Panasonic GX850	107 mm	65 mm	33 mm	269 g	210	n	Jan 2017	US$ 549	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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 size of the sensor inside a digital camera is one of the key determinants 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. 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 tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Fujifilm X100S features an APS-C sensor and the Panasonic G5 a Four Thirds sensor. The sensor area in the G5 is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the X100S has a native 3:2 aspect ratio, while the one in the G5 offers a 4:3 aspect.

With 16MP, the X100S offers a slightly higher resolution than the G5 (15.9MP), but the X100S nevertheless has larger individual pixels (pixel pitch of 4.80μm versus 3.76μm for the G5) due to its larger sensor. Moreover, the X100S is a somewhat more recent model (by 5 months) than the G5, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the X100S has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The X100S has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Fujifilm X100S has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-25600. The corresponding ISO settings for the Panasonic Lumix DMC-G5 are ISO 160 to ISO 12800 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. The X100S uses Fujifilm's X-Trans layout of photosites, while the G5 employs the more common Bayer array.

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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 X100S	APS-C	16.0	4896	3264	1080/60p	23.3	12.5	1329	75
2.		Panasonic G5	Four Thirds	15.9	4608	3456	1080/60p	21.4	11.6	618	61
3.		Canon G1 X	1.5-inch	14.2	4352	3264	1080/24p	21.7	10.8	644	60
4.		Fujifilm X-Pro1	APS-C	16.0	4896	3264	1080/24p	23.1	12.3	1238	74
5.		Fujifilm X-T1	APS-C	16.0	4896	3264	1080/60p	23.5	12.7	1426	77
6.		Fujifilm X-T10	APS-C	16.0	4896	3264	1080/60p	23.7	12.9	1546	79
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.		Leica X Typ 113	APS-C	16.1	4928	3264	1080/30p	23.6	12.8	1491	78
12.		Nikon Coolpix A	APS-C	16.1	4928	3264	1080/30p	23.4	13.8	1164	80
13.		Panasonic G3	Four Thirds	15.8	4592	3448	1080/60i	21.0	10.6	667	56
14.		Panasonic G6	Four Thirds	15.9	4608	3456	1080/60p	21.3	11.5	639	61
15.		Panasonic GF6	Four Thirds	15.8	4592	3448	1080/60i	20.7	10.6	622	54
16.		Panasonic GX1	Four Thirds	15.8	4592	3448	1080/60p	20.8	10.6	703	55
17.		Panasonic GX850	Four Thirds	15.8	4592	3448	4K/30p	23.2	13.3	586	73
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 have a sensor with sufficiently fast read-out times for 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 variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the X100S offers a substantially higher resolution than the one in the G5 (2360k vs 1440k dots). The adjacent table lists some of the other core features of the Fujifilm X100S and Panasonic G5 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 X100S	2360	n	2.8 / 460	fixed	n	1/4000s	6.0/s	Y	n
2.		Panasonic G5	1440	n	3.0 / 920	swivel	Y	1/4000s	6.0/s	Y	n
3.		Canon G1 X	optical	n	3.0 / 922	swivel	n	1/4000s	1.9/s	Y	Y
4.		Fujifilm X-Pro1	1440	n	3.0 / 1230	fixed	n	1/4000s	6.0/s	n	n
5.		Fujifilm X-T1	2360	n	3.0 / 1040	tilting	n	1/4000s	8.0/s	n	n
6.		Fujifilm X-T10	2360	n	3.0 / 920	tilting	n	1/4000s	8.0/s	Y	n
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.		Leica X Typ 113	optional	n	3.0 / 920	fixed	n	1/2000s	5.0/s	Y	n
12.		Nikon Coolpix A	optional	n	3.0 / 921	fixed	n	1/2000s	4.0/s	Y	n
13.		Panasonic G3	1440	n	3.0 / 460	swivel	Y	1/4000s	4.0/s	Y	n
14.		Panasonic G6	1440	n	3.0 / 1036	swivel	Y	1/4000s	7.0/s	Y	n
15.		Panasonic GF6	none	n	3.0 / 1040	tilting	Y	1/4000s	4.2/s	Y	n
16.		Panasonic GX1	optional	n	3.0 / 460	fixed	Y	1/4000s	4.2/s	Y	n
17.		Panasonic GX850	none	n	3.0 / 1040	tilting	Y	1/500s	10.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G5 has a touchscreen, while the X100S has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

Concerning the storage of imaging data, both the X100S and the G5 write their files to SDXC 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 Fujifilm X100S and Panasonic Lumix DMC-G5 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 X100S	Y	stereo / mono	-	-	micro	2.0	-	-	-
2.		Panasonic G5	Y	stereo / mono	-	-	mini	2.0	-	-	-
3.		Canon G1 X	Y	stereo / mono	-	-	mini	2.0	-	-	-
4.		Fujifilm X-Pro1	Y	stereo / mono	-	-	mini	2.0	-	-	-
5.		Fujifilm X-T1	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
6.		Fujifilm X-T10	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
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.		Leica X Typ 113	Y	stereo / mono	-	-	mini	2.0	-	-	-
12.		Nikon Coolpix A	Y	stereo / mono	-	-	-	2.0	-	-	-
13.		Panasonic G3	Y	stereo / mono	-	-	mini	2.0	-	-	-
14.		Panasonic G6	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
15.		Panasonic GF6	-	stereo / mono	-	-	mini	2.0	Y	Y	-
16.		Panasonic GX1	Y	stereo / mono	-	-	mini	2.0	-	-	-
17.		Panasonic GX850	-	stereo / mono	-	-	micro	2.0	Y	-	-

Both the X100S and the G5 have been discontinued, but can regularly be found used on ebay. The G5 was replaced by the Panasonic G6, while the X100S was followed by the Fujifilm X100T. Further information on the features and operation of the X100S and G5 can be found, respectively, in the Fujifilm X100S Manual (free pdf) or the online Panasonic G5 Manual.

Review summary

So how do things add up? Is there a clear favorite between the Fujifilm X100S and the Panasonic G5? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Fujifilm X100S:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• 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.
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• More detailed viewfinder: Has higher resolution electronic viewfinder (2360k vs 1440k dots).
• Ready to shoot: Has a lens built-in, whereas the G5 requires a separate lens.
• More modern: Is somewhat more recent (announced 5 months after the G5).

Advantages of the Panasonic Lumix DMC-G5:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.43x).
• 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 (920k vs 460k dots).
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
• More heavily discounted: Has been on the market for longer (launched in July 2012).

If the count of individual advantages (bullet points above) is taken as a guide, the match-up finishes in a tie (9 points each). 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 X100S and the Panasonic G5 place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best Mirrorless Interchangeable Lens 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 remains incomplete and does no justice, for example, to the way the X100S or the G5 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.

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.		Fujifilm X100S	5/5	+ +	..	81/100	4.5/5	5/5	Jan 2013	US$ 1 299	ebay.com
2.		Panasonic G5	3/5	+ +	..	..	4.5/5	4.5/5	Jul 2012	US$ 599	ebay.com
3.		Canon G1 X	5/5	+	..	76/100	4/5	4.5/5	Jan 2012	US$ 799	ebay.com
4.		Fujifilm X-Pro1	5/5	+ +	..	79/100	4.5/5	4.5/5	Jan 2012	US$ 1 699	ebay.com
5.		Fujifilm X-T1	5/5	+ +	..	84/100	5/5	5/5	Jan 2014	US$ 1 299	ebay.com
6.		Fujifilm X-T10	4.5/5	+ +	..	80/100	5/5	5/5	May 2015	US$ 799	ebay.com
7.		Fujifilm X30	4/5	..	..	76/100	4.5/5	4.5/5	Aug 2014	US$ 599	ebay.com
8.		Fujifilm X100	3/5	..	..	75/100	4/5	5/5	Sep 2010	US$ 1 199	ebay.com
9.		Fujifilm X100T	5/5	+	..	81/100	4.5/5	5/5	Sep 2014	US$ 1 299	ebay.com
10.		Fujifilm X100F	5/5	+	3.9/5	83/100	4.5/5	4.5/5	Jan 2017	US$ 1 299	ebay.com
11.		Leica X Typ 113	3.5/5	..	..	..	3.5/5	4/5	Sep 2014	US$ 2 299	ebay.com
12.		Nikon Coolpix A	4/5	+	..	75/100	4/5	4/5	Mar 2013	US$ 1 099	ebay.com
13.		Panasonic G3	3/5	+ +	..	75/100	4.5/5	5/5	May 2011	US$ 599	ebay.com
14.		Panasonic G6	4/5	+ +	..	..	5/5	4.5/5	Apr 2013	US$ 599	ebay.com
15.		Panasonic GF6	..	+ +	..	..	4.5/5	4.5/5	Apr 2013	US$ 499	ebay.com
16.		Panasonic GX1	3/5	+	..	77/100	4.5/5	4.5/5	Nov 2011	US$ 699	ebay.com
17.		Panasonic GX850	..	+	..	76/100	4.5/5	4.5/5	Jan 2017	US$ 549	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu 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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