Nikon 1 J4 vs Fujifilm X-T100

The Nikon 1 J4 and the Fujifilm X-T100 are two digital cameras that were revealed to the public, respectively, in April 2014 and May 2018. Both the J4 and the X-T100 are mirrorless interchangeable lens cameras that are based on an one-inch (J4) and an APS-C (X-T100) sensor. The Nikon has a resolution of 18.2 megapixels, whereas the Fujifilm provides 24 MP.

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

Headline Specifications

Nikon 1 J4		Fujifilm X-T100
Mirrorless system camera		Mirrorless system camera
Nikon 1 mount lenses		Fujifilm X mount lenses
18.2 MP – 1" sensor		24 MP – APS-C sensor
1080/60p Video		4K/15p Video
ISO 160-12,800		ISO 200-12,800 (100 - 51,200)
No viewfinder, LCD framing		Electronic viewfinder (2360k dots)
3.0" LCD – 1037k dots		3.0" LCD – 1040k dots
no rear screen		Swivel touchscreen
60 shutter flaps per second		6 shutter flaps per second
300 shots per battery charge		430 shots per battery charge
100 x 60 x 29 mm, 232 g		121 x 83 x 47 mm, 448 g

Check J4 offers at
ebay.com
Check X-T100 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon 1 J4 and the Fujifilm X-T100? 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 Nikon 1 J4 and the Fujifilm X-T100 are illustrated 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 width, height and depth measures are rounded to the nearest millimeter.

The J4 can be obtained in four different colors (black, silver, orange, white), while the X-T100 is available in three color-versions (black, silver, gold).

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Fujifilm X-T100 is considerably larger (67 percent) than the Nikon 1 J4. Moreover, the X-T100 is substantially heavier (93 percent) than the J4. In this context, it is worth noting that neither the J4 nor the X-T100 are weather-sealed.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

The power pack in the X-T100 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. 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.		Nikon 1 J4	100 mm	60 mm	29 mm	232 g	300	n	Apr 2014	549	ebay.com
2.		Fujifilm X-T100	121 mm	83 mm	47 mm	448 g	430	n	May 2018	599	ebay.com
3.		Canon G9 X	98 mm	58 mm	31 mm	209 g	220	n	Oct 2015	529	ebay.com
4.		Canon G9 X Mark II	98 mm	58 mm	31 mm	206 g	235	n	Jan 2017	529	ebay.com
5.		Canon SL1	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	549	ebay.com
6.		Fujifilm X-E3	121 mm	74 mm	43 mm	337 g	350	n	Sep 2017	899	ebay.com
7.		Fujifilm X-T20	118 mm	83 mm	41 mm	383 g	350	n	Jan 2017	899	ebay.com
8.		Fujifilm X-T30	118 mm	83 mm	47 mm	383 g	380	n	Feb 2019	899	ebay.com
9.		Fujifilm X-T200	121 mm	84 mm	55 mm	370 g	270	n	Jan 2020	699	ebay.com
10.		Fujifilm X100F	127 mm	75 mm	52 mm	469 g	390	n	Jan 2017	1,299	ebay.com
11.		Nikon 1 J5	98 mm	60 mm	32 mm	231 g	250	n	Apr 2015	399	ebay.com
12.		Nikon 1 V2	109 mm	82 mm	46 mm	278 g	310	n	Oct 2012	799	ebay.com
13.		Nikon 1 V3	111 mm	65 mm	33 mm	381 g	310	n	Mar 2014	799	ebay.com
14.		Nikon P900	140 mm	103 mm	137 mm	899 g	360	n	Mar 2015	599	ebay.com
15.		Panasonic FZ1000	137 mm	99 mm	131 mm	831 g	360	n	Jun 2014	899	ebay.com
16.		Panasonic G6	122 mm	85 mm	71 mm	390 g	340	n	Apr 2013	599	ebay.com
17.		Panasonic GF7	107 mm	65 mm	33 mm	266 g	230	n	Jan 2015	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 J4 was somewhat cheaper (by 8 percent) than the X-T100 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

The size of the imaging sensor is a crucial determinant 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 Nikon 1 J4 features an one-inch sensor and the Fujifilm X-T100 an APS-C sensor. The sensor area in the X-T100 is 218 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 24MP, the X-T100 offers a higher resolution than the J4 (18.2MP), but the X-T100 nevertheless has larger individual pixels (pixel pitch of 3.92μm versus 2.52μm for the J4) due to its larger sensor. Moreover, the X-T100 is a much more recent model (by 4 years and 1 month) than the J4, 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 the J4 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Fujifilm X-T100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X-T100 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Nikon 1 J4 are 26.2 x 17.4 inches or 66.4 x 44.3 cm for good quality, 20.9 x 14 inches or 53.2 x 35.4 cm for very good quality, and 17.4 x 11.6 inches or 44.3 x 29.5 cm for excellent quality prints.

The Nikon 1 J4 has a native sensitivity range from ISO 160 to ISO 12800. The corresponding ISO settings for the Fujifilm X-T100 are ISO 200 to ISO 12800, with the possibility to increase the ISO range to 100-51200.

Technology-wise, both cameras are equipped with CMOS (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.

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Nikon 1 J4	1-inch	18.2	5232	3488	1080/60p	20.8	10.7	426	53
2.		Fujifilm X-T100	APS-C	24.0	6000	4000	4K/15p	24.0	13.4	1829	83
3.		Canon G9 X	1-inch	20.0	5472	3648	1080/60p	21.5	12.3	495	63
4.		Canon G9 X Mark II	1-inch	20.0	5472	3648	1080/60p	21.9	12.5	522	65
5.		Canon SL1	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
6.		Fujifilm X-E3	APS-C	24.0	6000	4000	4K/30p	23.9	13.3	1764	82
7.		Fujifilm X-T20	APS-C	24.0	6000	4000	4K/30p	23.9	13.2	1704	81
8.		Fujifilm X-T30	APS-C	26.0	6240	4160	4K/30p	24.1	13.5	1895	83
9.		Fujifilm X-T200	APS-C	24.0	6000	4000	4K/30p	24.1	13.6	1991	84
10.		Fujifilm X100F	APS-C	24.0	6000	4000	1080/60p	23.9	13.2	1704	81
11.		Nikon 1 J5	1-inch	20.7	5568	3712	4K/15p	21.1	12.0	479	65
12.		Nikon 1 V2	1-inch	14.2	4608	3072	1080/60p	20.2	10.8	403	50
13.		Nikon 1 V3	1-inch	18.2	5232	3488	1080/60p	20.8	10.7	384	52
14.		Nikon P900	1/2.3	15.9	4608	3456	1080/60p	20.2	11.6	727	47
15.		Panasonic FZ1000	1-inch	20.0	5472	3648	4K/30p	22.1	11.7	517	64
16.		Panasonic G6	Four Thirds	15.9	4608	3456	1080/60p	21.3	11.5	639	61
17.		Panasonic GF7	Four Thirds	15.8	4592	3448	1080/60p	22.7	12.3	874	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 also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the X-T100 provides a better video resolution than the J4. It can shoot movie footage at 4K/15p, while the Nikon is limited to 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the X-T100 has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the J4 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Nikon 1 J4 and Fujifilm X-T100 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.		Nikon 1 J4	none	n	3.0 / 1037	Fixed	Y	1/4000s	60.0/s	Y	n
2.		Fujifilm X-T100	2360	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
3.		Canon G9 X	none	n	3.0 / 1040	fixed	Y	1/2000s	6.0/s	Y	Y
4.		Canon G9 X Mark II	none	n	3.0 / 1040	fixed	Y	1/2000s	8.2/s	Y	Y
5.		Canon SL1	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
6.		Fujifilm X-E3	2360	n	3.0 / 1040	fixed	Y	1/4000s	8.0/s	n	n
7.		Fujifilm X-T20	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
8.		Fujifilm X-T30	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
9.		Fujifilm X-T200	2360	n	3.5 / 2780	swivel	Y	1/4000s	8.0/s	Y	n
10.		Fujifilm X100F	2360	n	3.0 / 1040	fixed	n	1/4000s	8.0/s	Y	n
11.		Nikon 1 J5	none	n	3.0 / 1037	tilting	Y	1/4000s	60.0/s	Y	n
12.		Nikon 1 V2	1440	n	3.0 / 921	fixed	n	1/4000s	15.0/s	Y	n
13.		Nikon 1 V3	optional	n	3.0 / 1037	tilting	Y	1/4000s	60.0/s	Y	n
14.		Nikon P900	921	n	3.0 / 921	swivel	n	1/4000s	7.0/s	Y	Y
15.		Panasonic FZ1000	2359	n	3.0 / 921	swivel	n	1/4000s	12.0/s	Y	Y
16.		Panasonic G6	1440	n	3.0 / 1036	swivel	Y	1/4000s	7.0/s	Y	n
17.		Panasonic GF7	none	n	3.0 / 1040	tilting	Y	1/500s	5.8/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, both cameras under consideration feature an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Fujifilm X-T100 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The J4 writes its imaging data to micro SDXC cards, while the X-T100 uses 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 Nikon 1 J4 and Fujifilm X-T100 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.		Nikon 1 J4	-	stereo / mono	-	-	mini	2.0	Y	-	-
2.		Fujifilm X-T100	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
3.		Canon G9 X	-	stereo / mono	-	-	micro	2.0	Y	Y	-
4.		Canon G9 X Mark II	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
5.		Canon SL1	Y	mono / mono	Y	-	mini	2.0	-	-	-
6.		Fujifilm X-E3	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
7.		Fujifilm X-T20	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
8.		Fujifilm X-T30	Y	stereo / mono	Y	-	micro	3.1	Y	-	Y
9.		Fujifilm X-T200	Y	stereo / mono	Y	Y	micro	3.1	Y	-	Y
10.		Fujifilm X100F	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
11.		Nikon 1 J5	-	stereo / mono	-	-	micro	2.0	Y	Y	-
12.		Nikon 1 V2	-	stereo / mono	-	-	mini	2.0	-	-	-
13.		Nikon 1 V3	-	stereo / mono	Y	-	mini	2.0	Y	-	-
14.		Nikon P900	-	stereo / mono	-	-	micro	2.0	Y	Y	-
15.		Panasonic FZ1000	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-
16.		Panasonic G6	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
17.		Panasonic GF7	-	stereo / mono	-	-	micro	2.0	Y	Y	-

It is notable that the X-T100 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The J4 does not feature such a mic input.

Both the J4 and the X-T100 have been discontinued, but can regularly be found used on ebay. The J4 was replaced by the Nikon 1 J5, while the X-T100 was followed by the Fujifilm X-T200. Further information on the features and operation of the J4 and X-T100 can be found, respectively, in the Nikon 1 J4 Manual (free pdf) or the online Fujifilm X-T100 Manual.

Review summary

So what conclusions can be drawn? Is the Nikon 1 J4 better than the Fujifilm X-T100 or vice versa? A synthesis of the relative strong points of each of the models is listed below.

Reasons to prefer the Nikon 1 J4:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Faster burst: Shoots at higher frequency (60 vs 6 flaps/sec) to capture the decisive moment.
• More compact: Is smaller (100x60mm vs 121x83mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 216g or 48 percent) and hence easier to carry around.
• More heavily discounted: Has been available for much longer (launched in April 2014).

Advantages of the Fujifilm X-T100:

• More detail: Has more megapixels (24 vs 18.2MP), which boosts linear resolution by 15%.
• 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.
• Better video: Provides higher definition movie capture (4K/15p vs 1080/60p).
• Better sound: Can connect to an external microphone for higher quality sound recording.
• Easier framing: Has an electronic viewfinder for image composition and settings control.
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Longer lasting: Gets more shots (430 versus 300) out of a single battery charge.
• Easier travel charging: Can be conveniently charged via its USB port.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More modern: Reflects 4 years and 1 month of technical progress since the J4 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the X-T100 is the clear winner of the contest (17 : 5 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 Nikon 1 J4 and the Fujifilm X-T100 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 J4 and the X-T100 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.		Nikon 1 J4	3/5	..	..	..	4.5/5	4/5	Apr 2014	549	ebay.com
2.		Fujifilm X-T100	4/5	+	4.5/5	79/100	4/5	4.5/5	May 2018	599	ebay.com
3.		Canon G9 X	3.5/5	+ +	..	..	4.5/5	4.5/5	Oct 2015	529	ebay.com
4.		Canon G9 X Mark II	4/5	..	4/5	75/100	4.5/5	4.5/5	Jan 2017	529	ebay.com
5.		Canon SL1	4/5	+	..	78/100	4/5	4/5	Mar 2013	549	ebay.com
6.		Fujifilm X-E3	4.5/5	+	4.5/5	84/100	4.5/5	4.5/5	Sep 2017	899	ebay.com
7.		Fujifilm X-T20	5/5	+ +	5/5	82/100	5/5	4.5/5	Jan 2017	899	ebay.com
8.		Fujifilm X-T30	5/5	+ +	5/5	84/100	4.5/5	4.5/5	Feb 2019	899	ebay.com
9.		Fujifilm X-T200	3.5/5	..	4/5	82/100	4/5	4.5/5	Jan 2020	699	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.		Nikon 1 J5	..	..	..	..	4.5/5	4.5/5	Apr 2015	399	ebay.com
12.		Nikon 1 V2	3/5	..	..	..	4.5/5	4/5	Oct 2012	799	ebay.com
13.		Nikon 1 V3	3/5	..	..	76/100	4.5/5	4/5	Mar 2014	799	ebay.com
14.		Nikon P900	..	..	..	77/100	4/5	4/5	Mar 2015	599	ebay.com
15.		Panasonic FZ1000	4/5	+ +	..	82/100	4.5/5	4.5/5	Jun 2014	899	ebay.com
16.		Panasonic G6	4/5	+ +	..	..	5/5	4.5/5	Apr 2013	599	ebay.com
17.		Panasonic GF7	4/5	+	..	..	4.5/5	4.5/5	Jan 2015	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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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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