Nikon W150 vs Pentax K-S2
The Nikon Coolpix W150 and the Pentax K-S2 are two digital cameras that were announced, respectively, in April 2019 and February 2015. The W150 is a fixed lens compact, while the K-S2 is a DSLR. The cameras are based on a 1/3.1-inch (W150) and an APS-C (K-S2) sensor. The Nikon has a resolution of 13 megapixels, whereas the Pentax provides 20 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Coolpix W150 and the Pentax K-S2? 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.
The physical size and weight of the Nikon W150 and the Pentax K-S2 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 dimensions are rounded to the nearest millimeter.
The W150 can be obtained in five different colors (blue, orange, white, flower, resort), while the K-S2 is available in six color-versions (black, grey, pink, orange, green, white).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-S2 is considerably larger (52 percent) than the Nikon W150. 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. More than that, the W150 is water-proof up to 10m and can, thus, be used for underwater photography.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the W150 has a lens built in, whereas the K-S2 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.
The power pack in the W150 can be charged via the USB port, so that it is not always necessary to take the battery charger along 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.
|1.||Nikon W150||110 mm||67 mm||38 mm||177 g||220||Y||Apr 2019||159|
|2.||Pentax K-S2||123 mm||91 mm||73 mm||678 g||410||Y||Feb 2015||749|
|3.||Leica Q2||130 mm||80 mm||92 mm||718 g||370||Y||Mar 2019||4,995|
|4.||Nikon B600||122 mm||82 mm||99 mm||500 g||280||n||Jan 2019||349|
|5.||Nikon A1000||114 mm||72 mm||41 mm||330 g||250||n||Jan 2019||429|
|6.||Nikon P1000||146 mm||119 mm||181 mm||1415 g||250||n||Jul 2018||999|
|7.||Nikon W300||112 mm||66 mm||29 mm||231 g||280||Y||May 2017||389|
|8.||Panasonic TS7||117 mm||76 mm||37 mm||319 g||300||Y||May 2018||449|
|9.||Pentax KP||132 mm||101 mm||76 mm||703 g||390||Y||Jan 2017||1,099|
|10.||Pentax K-70||126 mm||93 mm||74 mm||688 g||410||Y||Jun 2016||649|
|11.||Pentax K-3 II||131 mm||100 mm||77 mm||800 g||720||Y||Apr 2015||1,099|
|12.||Pentax K-S1||121 mm||93 mm||70 mm||558 g||410||n||Aug 2014||749|
|13.||Pentax K-3||131 mm||100 mm||77 mm||800 g||560||Y||Oct 2013||1,299|
|14.||Ricoh WG-6||118 mm||66 mm||33 mm||246 g||340||Y||Feb 2019||399|
|15.||Ricoh WG-60||123 mm||62 mm||30 mm||193 g||300||Y||Oct 2018||279|
|16.||Sony RX0 II||59 mm||41 mm||35 mm||132 g||240||Y||Mar 2019||699|
|17.||Sony RX0||59 mm||41 mm||30 mm||110 g||240||Y||Aug 2017||699|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The W150 was launched at a lower price than the K-S2, 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.
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. 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 more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Nikon W150 features a 1/3.1-inch sensor and the Pentax K-S2 an APS-C sensor. The sensor area in the K-S2 is 2194 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 7.4 and 1.5. The sensor in the W150 has a native 4:3 aspect ratio, while the one in the K-S2 offers a 3:2 aspect.
In terms of underlying technology, both cameras are build around CMOS sensors.
With 20MP, the K-S2 offers a higher resolution than the W150 (13MP), but the K-S2 nevertheless has larger individual pixels (pixel pitch of 4.28μm versus 1.11μm for the W150) due to its larger sensor. However, the W150 is a much more recent model (by 4 years and 2 months) than the K-S2, and its sensor will have benefitted from technological advances during this time that 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 Pentax K-S2 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-S2 for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Nikon W150 are 20.8 x 15.6 inches or 52.8 x 39.6 cm for good quality, 16.6 x 12.5 inches or 42.3 x 31.7 cm for very good quality, and 13.9 x 10.4 inches or 35.2 x 26.4 cm for excellent quality prints.
The Nikon Coolpix W150 has a native sensitivity range from ISO 125 to ISO 1600. The corresponding ISO settings for the Pentax K-S2 are ISO 100 to ISO 51200 (no boost).
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.
| DXO |
|3.||Leica Q2||Full Frame||46.7||8368||5584||4K/30p||26.4||13.5||2491||96|
|11.||Pentax K-3 II||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
|16.||Sony RX0 II||1-inch||15.4||4800||3200||4K/30p||..||..||..||..|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/30p).
Beyond body and sensor, cameras can and do differ across a range of features. For example, the K-S2 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the W150 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Nikon W150 and Pentax K-S2 along with similar information for a selection of comparators.
|11.||Pentax K-3 II||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||n||Y|
|16.||Sony RX0 II||none||n||1.5||230||tilting||n||..||5.5||n||n|
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, the W150 is one of those camera that have an additional 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 Pentax K-S2 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.
Concerning the storage of imaging data, both the W150 and the K-S2 write their files to SDXC cards. The K-S2 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the W150 cannot take advantage of Ultra High Speed SD cards.
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 Coolpix W150 and Pentax K-S2 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|11.||Pentax K-3 II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
|16.||Sony RX0 II||-||stereo||mono||Y||-||micro||2.0||Y||-||Y|
It is notable that the K-S2 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The W150 does not feature such a mic input.
Both the W150 and the K-S2 are recent models that are part of the current product line-up. The K-S2 replaced the earlier Pentax K-S1, while the W150 followed on from the Nikon W100. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Pentax websites.
So what is the bottom line? Is the Nikon W150 better than the Pentax K-S2 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Nikon Coolpix W150:
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Ready to shoot: Comes with a built-in lens, while the K-S2 requires a separate lens.
- More compact: Is smaller (110x67mm vs 123x91mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the K-S2).
- Easier travel charging: Can be conveniently charged via its USB port.
- Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 10m).
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 4 years and 2 months of technical progress since the K-S2 launch.
Arguments in favor of the Pentax K-S2:
- More detail: Has more megapixels (20 vs 13MP), which boosts linear resolution by 26%.
- 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 sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (921k vs 230k dots).
- 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.
- Faster shutter: Has higher mechanical shutter speed (1/6000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (5.4 vs 4.7 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (410 versus 220) out of a single battery charge.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More heavily discounted: Has been around for much longer (launched in February 2015).
If the count of individual advantages (bullet points above) is taken as a guide, the K-S2 is the clear winner of the contest (21 : 9 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 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 Nikon W150 and the Pentax K-S2 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 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 W150 and the K-S2 in practical situations. 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.
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], 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.
|1.||Nikon W150||..||+||..||3.5/5||3/5||Apr 2019||159|
|2.||Pentax K-S2||4.5/5||..||..||5/5||4.5/5||Feb 2015||749|
|3.||Leica Q2||..||..||84/100||4.5/5||4/5||Mar 2019||4,995|
|4.||Nikon B600||..||+||..||3.5/5||3/5||Jan 2019||349|
|5.||Nikon A1000||..||+ +||..||3.5/5||3/5||Jan 2019||429|
|6.||Nikon P1000||..||+||73/100||3.5/5||3.5/5||Jul 2018||999|
|7.||Nikon W300||..||+||..||4/5||4/5||May 2017||389|
|8.||Panasonic TS7||..||+||..||..||3.5/5||May 2018||449|
|9.||Pentax KP||4/5||..||82/100||5/5||4.5/5||Jan 2017||1,099|
|10.||Pentax K-70||4.5/5||..||79/100||4.5/5||4.5/5||Jun 2016||649|
|11.||Pentax K-3 II||4.5/5||..||..||5/5||5/5||Apr 2015||1,099|
|12.||Pentax K-S1||4/5||..||..||4.5/5||4/5||Aug 2014||749|
|13.||Pentax K-3||4/5||..||83/100||5/5||5/5||Oct 2013||1,299|
|14.||Ricoh WG-6||..||..||..||3.5/5||3.5/5||Feb 2019||399|
|15.||Ricoh WG-60||..||..||..||..||..||Oct 2018||279|
|16.||Sony RX0 II||..||..||..||3.5/5||4/5||Mar 2019||699|
|17.||Sony RX0||..||..||..||3.5/5||4/5||Aug 2017||699|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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.
Specifications: Nikon W150 vs Pentax K-S2
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||Nikon W150||Pentax K-S2|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||30-90mm f/3.3-5.9||Pentax K mount lenses|
|Launch Date||April 2019||February 2015|
|Launch Price||USD 159||USD 749|
|Sensor Specs||Nikon W150||Pentax K-S2|
|Sensor Format||1/3.1" Sensor||APS-C Sensor|
|Sensor Size||4.7 x 3.5 mm||23.5 x 15.6 mm|
|Sensor Area||16.45 mm2||366.6 mm2|
|Sensor Diagonal||5.9 mm||28.2 mm|
|Sensor Resolution||13 Megapixels||20 Megapixels|
|Image Resolution||4160 x 3120 pixels||5472 x 3648 pixels|
|Pixel Pitch||1.11 μm||4.28 μm|
|Pixel Density||78.90 MP/cm2||5.45 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||1080/30p Video||1080/30p Video|
|ISO Setting||125 - 1,600 ISO||100 - 51,200 ISO|
|Screen Specs||Nikon W150||Pentax K-S2|
|Viewfinder Type||no viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.7inch||3.0inch|
|LCD Resolution||230k dots||921k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Shooting Specs||Nikon W150||Pentax K-S2|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/2000s||1/6000s|
|Continuous Shooting||4.7 shutter flaps/s||5.4 shutter flaps/s|
|Electronic Shutter||up to 1/2000s||no E-Shutter|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||no shake reduction||In-body stabilization|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Nikon W150||Pentax K-S2|
|External Flash||no Hotshoe||Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Nikon W150||Pentax K-S2|
|Environmental Sealing||Waterproof body (10m)||Weathersealed body|
|Battery Life (CIPA)||220 shots per charge||410 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
110 x 67 x 38 mm
(4.3 x 2.6 x 1.5 in)
123 x 91 x 73 mm
(4.8 x 3.6 x 2.9 in)
|Camera Weight||177 g (6.2 oz)||678 g (23.9 oz)|
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