Fujifilm X-T4 vs OM System OM-3
The Fujifilm X-T4 and the OM System OM-3 are two enthusiast cameras that were revealed to the public, respectively, in February 2020 and February 2025. Both the X-T4 and the OM-3 are mirrorless interchangeable lens cameras that are based on an APS-C (X-T4) and a Four Thirds (OM-3) sensor. The Fujifilm has a resolution of 26 megapixels, whereas the OM System provides 20.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Check X-T4 offers at
ebay.com

Check OM-3 price at
amazon.com
Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-T4 and the OM System OM-3? 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 Fujifilm X-T4 and the OM System OM-3. 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 measures 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 OM System OM-3 is somewhat smaller (1 percent) than the Fujifilm X-T4. Moreover, the OM-3 is markedly lighter (18 percent) than the X-T4. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Fujinon X Lens Catalog (X-T4) and the Micro Four Thirds Lens Catalog (OM-3). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.
Concerning battery life, the X-T4 gets 500 shots out of its Fujifilm NP-W235 battery, while the OM-3 can take 590 images on a single charge of its OM System BLX-1 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.

| Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Fujifilm X-T4 | 135 mm | 93 mm | 64 mm | 607 g | 500 | Y | Feb 2020 | US$ 1 699 | ebay.com | |
| 2. | OM System OM-3 | 139 mm | 89 mm | 46 mm | 496 g | 590 | Y | Feb 2025 | US$ 1 999 | amazon.com | |
| 3. | Fujifilm X-H1 | 140 mm | 97 mm | 86 mm | 673 g | 310 | Y | Feb 2018 | US$ 1 899 | ebay.com | |
| 4. | Fujifilm X-Pro3 | 141 mm | 83 mm | 46 mm | 497 g | 440 | Y | Oct 2019 | US$ 1 799 | amazon.com | |
| 5. | Fujifilm X-T2 | 133 mm | 92 mm | 49 mm | 507 g | 340 | Y | Jul 2016 | US$ 1 599 | ebay.com | |
| 6. | Fujifilm X-T3 | 133 mm | 93 mm | 59 mm | 539 g | 390 | Y | Sep 2018 | US$ 1 499 | ebay.com | |
| 7. | Fujifilm X-T5 | 130 mm | 91 mm | 64 mm | 557 g | 580 | Y | Nov 2022 | US$ 1 699 | amazon.com | |
| 8. | Nikon Z5 | 134 mm | 101 mm | 67 mm | 675 g | 470 | Y | Jul 2020 | US$ 1 399 | ebay.com | |
| 9. | Nikon Z6 II | 134 mm | 101 mm | 70 mm | 705 g | 410 | Y | Oct 2020 | US$ 1 999 | amazon.com | |
| 10. | Olympus E-M1 II | 134 mm | 91 mm | 67 mm | 574 g | 440 | Y | Sep 2016 | US$ 1 999 | ebay.com | |
| 11. | Olympus E-M1 III | 134 mm | 91 mm | 69 mm | 580 g | 420 | Y | Feb 2020 | US$ 1 799 | ebay.com | |
| 12. | OM System OM-1 | 135 mm | 92 mm | 73 mm | 599 g | 520 | Y | Feb 2022 | US$ 2 199 | ebay.com | |
| 13. | OM System OM-1 II | 135 mm | 92 mm | 73 mm | 599 g | 500 | Y | Jan 2024 | US$ 2 399 | amazon.com | |
| 14. | OM System OM-5 II | 125 mm | 85 mm | 50 mm | 414 g | 310 | Y | Jun 2025 | US$ 1 199 | amazon.com | |
| 15. | Panasonic S5 | 133 mm | 98 mm | 82 mm | 714 g | 440 | Y | Sep 2020 | US$ 1 999 | amazon.com | |
| 16. | Sony A7C | 124 mm | 71 mm | 60 mm | 509 g | 740 | Y | Sep 2020 | US$ 1 799 | amazon.com | |
| 17. | Sony A6600 | 120 mm | 67 mm | 69 mm | 503 g | 810 | Y | Aug 2019 | US$ 1 399 | amazon.com | |
| Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X-T4 was launched at a somewhat lower price (by 15 percent) than the OM-3, which makes it more attractive for photographers on a tight budget. 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.
Sensor comparison
The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels 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 more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Fujifilm X-T4 features an APS-C sensor and the OM System OM-3 a Four Thirds sensor. The sensor area in the OM-3 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 X-T4 has a native 3:2 aspect ratio, while the one in the OM-3 offers a 4:3 aspect.

With 26MP, the X-T4 offers a higher resolution than the OM-3 (20.2MP), but the X-T4 nevertheless has larger individual pixels (pixel pitch of 3.76μm versus 3.34μm for the OM-3) due to its larger sensor. However, the OM-3 is a much more recent model (by 4 years and 11 months) than the X-T4, and its sensor will 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 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 X-T4 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X-T4 for good quality output (200 dots per inch) amounts to 31.2 x 20.8 inches or 79.2 x 52.8 cm, for very good quality (250 dpi) 25 x 16.6 inches or 63.4 x 42.3 cm, and for excellent quality (300 dpi) 20.8 x 13.9 inches or 52.8 x 35.2 cm. The corresponding values for the OM System OM-3 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.
Unlike the X-T4, the OM-3 has the capacity to capture high quality composite images (80MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Fujifilm X-T4 has a native sensitivity range from ISO 160 to ISO 12800, which can be extended to ISO 80-51200. The corresponding ISO settings for the OM System OM-3 are ISO 80 to ISO 25600, with the possibility to increase the ISO range to 80-102400.
In terms of underlying technology, the X-T4 is build around a BSI-CMOS sensor, while the OM-3 uses a Stacked BSI-CMOS imager. The X-T4 uses Fujifilm's X-Trans layout of photosites, while the OM-3 employs the more common Bayer array.

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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

| Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Fujifilm X-T4 | APS-C | 26.0 | 6240 | 4160 | 4K/60p | 24.1 | 13.6 | 1995 | 84 | |
| 2. | OM System OM-3 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.7 | 1852 | 78 | |
| 3. | Fujifilm X-H1 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 24.0 | 13.3 | 1806 | 82 | |
| 4. | Fujifilm X-Pro3 | APS-C | 26.0 | 6240 | 4160 | 4K/30p | 24.1 | 13.6 | 1968 | 84 | |
| 5. | Fujifilm X-T2 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 23.8 | 13.1 | 1653 | 81 | |
| 6. | Fujifilm X-T3 | APS-C | 26.0 | 6240 | 4160 | 4K/60p | 24.0 | 13.4 | 1853 | 83 | |
| 7. | Fujifilm X-T5 | APS-C | 39.8 | 7728 | 5152 | 6.2k/30p | 24.3 | 13.9 | 2264 | 86 | |
| 8. | Nikon Z5 | Full Frame | 24.2 | 6016 | 4016 | 4K/30p | 25.3 | 14.3 | 2929 | 95 | |
| 9. | Nikon Z6 II | Full Frame | 24.3 | 6048 | 4024 | 4K/60p | 25.0 | 14.4 | 3303 | 94 | |
| 10. | Olympus E-M1 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.7 | 12.8 | 1312 | 80 | |
| 11. | Olympus E-M1 III | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.3 | 13.1 | 1356 | 76 | |
| 12. | OM System OM-1 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.4 | 1553 | 77 | |
| 13. | OM System OM-1 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.6 | 1749 | 78 | |
| 14. | OM System OM-5 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.4 | 13.7 | 1889 | 78 | |
| 15. | Panasonic S5 | Full Frame | 24.0 | 6000 | 4000 | 4K/60p | 25.1 | 14.5 | 2697 | 94 | |
| 16. | Sony A7C | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3407 | 95 | |
| 17. | Sony A6600 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 23.8 | 13.4 | 1497 | 82 | |
| 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 (4K/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 X-T4 offers a substantially higher resolution than the one in the OM-3 (3690k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Fujifilm X-T4, the OM System OM-3, and comparable cameras.

| 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 X-T4 | 3690 | n | 3.0 / 1620 | swivel | Y | 1/8000s | 15.0/s | n | Y | |
| 2. | OM System OM-3 | 2360 | n | 3.0 / 1640 | swivel | Y | 1/8000s | 6.0/s | n | Y | |
| 3. | Fujifilm X-H1 | 3690 | Y | 3.0 / 1040 | full-flex | Y | 1/8000s | 14.0/s | n | Y | |
| 4. | Fujifilm X-Pro3 | 3690 | n | 3.0 / 1620 | tilting | Y | 1/8000s | 8.0/s | n | n | |
| 5. | Fujifilm X-T2 | 2360 | n | 3.0 / 1040 | full-flex | n | 1/8000s | 8.0/s | n | n | |
| 6. | Fujifilm X-T3 | 3690 | n | 3.0 / 1040 | full-flex | Y | 1/8000s | 11.0/s | n | n | |
| 7. | Fujifilm X-T5 | 3690 | n | 3.0 / 1840 | tilting | Y | 1/8000s | 15.0/s | n | Y | |
| 8. | Nikon Z5 | 3690 | n | 3.2 / 1040 | tilting | Y | 1/8000s | 4.5/s | n | Y | |
| 9. | Nikon Z6 II | 3690 | Y | 3.2 / 2100 | tilting | Y | 1/8000s | 14.0/s | n | Y | |
| 10. | Olympus E-M1 II | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 18.0/s | n | Y | |
| 11. | Olympus E-M1 III | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 18.0/s | n | Y | |
| 12. | OM System OM-1 | 5760 | n | 3.0 / 1640 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
| 13. | OM System OM-1 II | 5760 | n | 3.0 / 1640 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
| 14. | OM System OM-5 II | 2360 | n | 3.0 / 1040 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
| 15. | Panasonic S5 | 2360 | n | 3.0 / 1840 | swivel | Y | 1/8000s | 7.0/s | n | Y | |
| 16. | Sony A7C | 2360 | n | 3.0 / 922 | swivel | Y | 1/4000s | 10.0/s | n | Y | |
| 17. | Sony A6600 | 2359 | n | 3.0 / 922 | tilting | Y | 1/4000s | 11.0/s | n | Y | |
| 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-T4 and the OM System OM-3 both have 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.
Concerning the storage of imaging data, both the X-T4 and the OM-3 write their files to SDXC cards. The X-T4 features dual card slots, which can be very useful in case a memory card fails. In contrast, the OM-3 only has one slot. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 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 X-T4 and OM System OM-3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

| Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Fujifilm X-T4 | Y | stereo / mono | Y | - | micro | 3.1 | Y | - | Y | |
| 2. | OM System OM-3 | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | Y | |
| 3. | Fujifilm X-H1 | Y | stereo / mono | Y | - | micro | 3.0 | Y | - | - | |
| 4. | Fujifilm X-Pro3 | Y | stereo / mono | Y | - | - | 3.1 | Y | - | Y | |
| 5. | Fujifilm X-T2 | Y | stereo / mono | Y | - | micro | 3.0 | Y | - | - | |
| 6. | Fujifilm X-T3 | Y | stereo / mono | Y | Y | micro | 3.1 | Y | - | Y | |
| 7. | Fujifilm X-T5 | Y | stereo / mono | Y | - | micro | 3.2 | Y | - | Y | |
| 8. | Nikon Z5 | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
| 9. | Nikon Z6 II | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
| 10. | Olympus E-M1 II | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | - | |
| 11. | Olympus E-M1 III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | - | Y | |
| 12. | OM System OM-1 | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | Y | |
| 13. | OM System OM-1 II | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | Y | |
| 14. | OM System OM-5 II | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
| 15. | Panasonic S5 | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
| 16. | Sony A7C | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
| 17. | Sony A6600 | Y | stereo / mono | Y | Y | YES | 2.0 | Y | Y | Y |
It is notable that the OM-3 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The X-T4 lacks such a headphone port.
Studio photographers will appreciate that the Fujifilm X-T4 (unlike the OM-3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The OM-3 is a recent model that features in the current product line-up of OM System. In contrast, the X-T4 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the X-T4 was succeeded by the Fujifilm X-T5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and OM System websites.
Review summary
So what conclusions can be drawn? Is there a clear favorite between the Fujifilm X-T4 and the OM System OM-3? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Fujifilm X-T4:
- More detail: Offers more megapixels (26 vs 20.2MP) with a 16% higher linear resolution.
- 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 detailed viewfinder: Has higher resolution electronic viewfinder (3690k vs 2360k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.75x vs 0.69x).
- Faster burst: Shoots at higher frequency (15 vs 6 flaps/sec) to capture the decisive moment.
- 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.
- More affordable: Was introduced into a lower priced segment (15 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in February 2020).

Reasons to prefer the OM System OM-3:
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Less heavy: Has a lower weight (by 111g or 18 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (590 versus 500) out of a single battery charge.
- More modern: Reflects 4 years and 11 months of technical progress since the X-T4 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the X-T4 is the clear winner of the match-up (12 : 5 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 X-T4 and the OM System OM-3 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 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 X-T4 or the OM-3. 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 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.

| Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Fujifilm X-T4 | 5/5 | + + | 5/5 | 88/100 | 5/5 | 5/5 | Feb 2020 | US$ 1 699 | ebay.com | |
| 2. | OM System OM-3 | .. | .. | .. | 86/100 | .. | .. | Feb 2025 | US$ 1 999 | amazon.com | |
| 3. | Fujifilm X-H1 | .. | + | 5/5 | 86/100 | 4.5/5 | 4.5/5 | Feb 2018 | US$ 1 899 | ebay.com | |
| 4. | Fujifilm X-Pro3 | 4/5 | + | 4/5 | 85/100 | 4/5 | .. | Oct 2019 | US$ 1 799 | amazon.com | |
| 5. | Fujifilm X-T2 | 5/5 | + + | .. | 86/100 | 4.5/5 | 5/5 | Jul 2016 | US$ 1 599 | ebay.com | |
| 6. | Fujifilm X-T3 | 5/5 | + + | 4.5/5 | 88/100 | 5/5 | 5/5 | Sep 2018 | US$ 1 499 | ebay.com | |
| 7. | Fujifilm X-T5 | 5/5 | + + | 4.5/5 | 90/100 | 4.5/5 | .. | Nov 2022 | US$ 1 699 | amazon.com | |
| 8. | Nikon Z5 | 4/5 | .. | 4/5 | 89/100 | 4.5/5 | 4/5 | Jul 2020 | US$ 1 399 | ebay.com | |
| 9. | Nikon Z6 II | 4.5/5 | .. | 4/5 | 89/100 | 4.5/5 | 4.5/5 | Oct 2020 | US$ 1 999 | amazon.com | |
| 10. | Olympus E-M1 II | 5/5 | + + | 5/5 | 85/100 | 4.5/5 | 4.5/5 | Sep 2016 | US$ 1 999 | ebay.com | |
| 11. | Olympus E-M1 III | 5/5 | .. | 5/5 | 83/100 | 4.5/5 | 4/5 | Feb 2020 | US$ 1 799 | ebay.com | |
| 12. | OM System OM-1 | 5/5 | .. | .. | 87/100 | 5/5 | 4.5/5 | Feb 2022 | US$ 2 199 | ebay.com | |
| 13. | OM System OM-1 II | .. | .. | .. | .. | .. | .. | Jan 2024 | US$ 2 399 | amazon.com | |
| 14. | OM System OM-5 II | .. | .. | .. | .. | .. | .. | Jun 2025 | US$ 1 199 | amazon.com | |
| 15. | Panasonic S5 | 4.5/5 | + + | 4.5/5 | 88/100 | 4.5/5 | 4.5/5 | Sep 2020 | US$ 1 999 | amazon.com | |
| 16. | Sony A7C | 3.5/5 | .. | 3.5/5 | 86/100 | 4/5 | 4/5 | Sep 2020 | US$ 1 799 | amazon.com | |
| 17. | Sony A6600 | 4/5 | + | 4/5 | 83/100 | 4.5/5 | 4/5 | Aug 2019 | US$ 1 399 | amazon.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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Check X-T4 offers at
ebay.com

Check OM-3 price at
amazon.com
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 make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1200D vs Fujifilm X-T4
- Canon R3 vs Fujifilm X-T4
- Canon R50 vs Fujifilm X-T4
- Canon R6 Mark II vs OM System OM-3
- Fujifilm X-E3 vs OM System OM-3
- Fujifilm X-T2 vs Fujifilm X-T4
- Fujifilm X-T4 vs Nikon D3X
- Fujifilm X-T4 vs Nikon D7200
- OM System OM-3 vs OM System OM-5 II
- OM System OM-3 vs Panasonic G110
- OM System OM-3 vs Panasonic S5
- OM System OM-3 vs Pentax K-70
Specifications: Fujifilm X-T4 vs OM System OM-3
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
| Camera Model | Fujifilm X-T4 | OM System OM-3 |
|---|---|---|
| Camera Type | Mirrorless system camera | Mirrorless system camera |
| Camera Lens | Fujifilm X mount lenses | Micro Four Thirds lenses |
| Launch Date | February 2020 | February 2025 |
| Launch Price | USD 1,699 | USD 1,999 |
| Sensor Specs | Fujifilm X-T4 | OM System OM-3 |
| Sensor Technology | BSI-CMOS | Stacked BSI-CMOS |
| Sensor Format | APS-C Sensor | Four Thirds Sensor |
| Sensor Size | 23.5 x 15.6 mm | 17.3 x 13.0 mm |
| Sensor Area | 366.6 mm2 | 224.9 mm2 |
| Sensor Diagonal | 28.2 mm | 21.6 mm |
| Crop Factor | 1.5x | 2.0x |
| Sensor Resolution | 26 Megapixels | 20.2 Megapixels |
| Image Resolution | 6240 x 4160 pixels | 5184 x 3888 pixels |
| Pixel Pitch | 3.76 μm | 3.34 μm |
| Pixel Density | 7.08 MP/cm2 | 8.96 MP/cm2 |
| Moiré control | no AA filter | no AA filter |
| Movie Capability | 4K/60p Video | 4K/60p Video |
| ISO Setting | 160 - 12,800 ISO | 80 - 25,600 ISO |
| ISO Boost | 80 - 51,200 ISO | 80 - 102,400 ISO |
| Image Processor | X-Processor 4 | TruePic X |
| Screen Specs | Fujifilm X-T4 | OM System OM-3 |
| Viewfinder Type | Electronic viewfinder | Electronic viewfinder |
| Viewfinder Field of View | 100% | 100% |
| Viewfinder Magnification | 0.75x | 0.69x |
| Viewfinder Resolution | 3690k dots | 2360k dots |
| LCD Framing | Live View | Live View |
| Rear LCD Size | 3.0inch | 3.0inch |
| LCD Resolution | 1620k dots | 1640k dots |
| LCD Attachment | Swivel screen | Swivel screen |
| Touch Input | Touchscreen | Touchscreen |
| Shooting Specs | Fujifilm X-T4 | OM System OM-3 |
| Focus System | On-Sensor Phase-detect | On-Sensor Phase-detect |
| Manual Focusing Aid | Focus Peaking | Focus Peaking |
| Max Shutter Speed (mechanical) | 1/8000s | 1/8000s |
| Continuous Shooting | 15 shutter flaps/s | 6 shutter flaps/s |
| Electronic Shutter | up to 1/32000s | up to 1/32000s |
| Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
| Image Stabilization | In-body stabilization | In-body stabilization |
| Fill Flash | no On-Board Flash | no On-Board Flash |
| Storage Medium | SDXC cards | SDXC cards |
| Single or Dual Card Slots | Dual card slots | Single card slot |
| UHS card support | Dual UHS-II | UHS-II |
| Connectivity Specs | Fujifilm X-T4 | OM System OM-3 |
| External Flash | Hotshoe | Hotshoe |
| Studio Flash | PC Sync socket | no PC Sync |
| USB Connector | USB 3.1 | USB 3.0 |
| HDMI Port | micro HDMI | micro HDMI |
| Microphone Port | External MIC port | External MIC port |
| Headphone Socket | no Headphone port | Headphone port |
| Wifi Support | Wifi built-in | Wifi built-in |
| Bluetooth Support | Bluetooth built-in | Bluetooth built-in |
| Body Specs | Fujifilm X-T4 | OM System OM-3 |
| Environmental Sealing | Weathersealed body | Weathersealed body |
| Battery Type | Fujifilm NP-W235 | OM System BLX-1 |
| Battery Life (CIPA) | 500 shots per charge | 590 shots per charge |
| In-Camera Charging | USB charging | USB charging |
| Body Dimensions |
135 x 93 x 64 mm (5.3 x 3.7 x 2.5 in) |
139 x 89 x 46 mm (5.5 x 3.5 x 1.8 in) |
| Camera Weight | 607 g (21.4 oz) | 496 g (17.5 oz) |

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