Pentax K-S1 vs Ricoh WG-6
The Pentax K-S1 and the Ricoh WG-6 are two digital cameras that were officially introduced, respectively, in August 2014 and February 2019. The K-S1 is a DSLR, while the WG-6 is a fixed lens compact. The cameras are based on an APS-C (K-S1) and a 1/2.3-inch (WG-6) sensor. The Pentax has a resolution of 20 megapixels, whereas the Ricoh provides 20.2 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 Pentax K-S1 and the Ricoh WG-6? 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.
An illustration of the physical size and weight of the Pentax K-S1 and the Ricoh WG-6 is provided in the side-by-side display below. 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 dimensions are rounded to the nearest millimeter.
The K-S1 can be obtained in four different colors (black, grey, orange, white), while the WG-6 is available in two color-versions (black, orange).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Ricoh WG-6 is considerably smaller (31 percent) than the Pentax K-S1. It is noteworthy in this context that the WG-6 is splash and dust-proof, while the K-S1 does not feature any corresponding weather-sealing. More than that, the WG-6 is water-proof up to 20m and can, thus, be used for underwater photography.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the WG-6 has a lens built in, whereas the K-S1 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 WG-6 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.
|1.||Pentax K-S1||121 mm||93 mm||70 mm||558 g||410||n||Aug 2014||749|
|2.||Ricoh WG-6||118 mm||66 mm||33 mm||246 g||340||Y||Feb 2019||399|
|3.||Canon SX740||110 mm||64 mm||40 mm||299 g||265||n||Jul 2018||399|
|4.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|5.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|6.||Nikon D5300||125 mm||98 mm||76 mm||480 g||600||n||Oct 2013||799|
|7.||Panasonic FT7||117 mm||76 mm||37 mm||319 g||300||Y||May 2018||449|
|8.||Pentax K-S2||123 mm||91 mm||73 mm||678 g||410||Y||Feb 2015||749|
|9.||Pentax K-3 II||131 mm||100 mm||77 mm||800 g||720||Y||Apr 2015||1,099|
|10.||Pentax K-50||130 mm||97 mm||71 mm||650 g||410||Y||Jun 2013||599|
|11.||Pentax K-500||130 mm||97 mm||71 mm||646 g||710||n||Jun 2013||549|
|12.||Pentax K-3||131 mm||100 mm||77 mm||800 g||560||Y||Oct 2013||1,299|
|13.||Sony HX99||102 mm||58 mm||36 mm||242 g||370||n||Aug 2018||449|
|14.||Sony HX95||102 mm||58 mm||36 mm||242 g||370||n||Aug 2018||429|
|15.||Sony WX800||102 mm||58 mm||36 mm||233 g||370||n||Oct 2018||399|
|16.||Sony A68||143 mm||104 mm||81 mm||610 g||540||n||Nov 2015||699|
|17.||Sony A58||129 mm||95 mm||78 mm||492 g||690||n||Feb 2013||599|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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 WG-6 was launched at a lower price than the K-S1, 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 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 Pentax K-S1 features an APS-C sensor and the Ricoh WG-6 a 1/2.3-inch sensor. The sensor area in the WG-6 is 92 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 5.6. The sensor in the K-S1 has a native 3:2 aspect ratio, while the one in the WG-6 offers a 4:3 aspect.
Despite having a smaller sensor, the WG-6 offers a slightly higher resolution of 20.2 megapixels, compared with 20 MP of the K-S1. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.18μm versus 4.28μm for the K-S1). However, it should be noted that the WG-6 is much more recent (by 4 years and 5 months) than the K-S1, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. 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 Pentax K-S1 has a native sensitivity range from ISO 100 to ISO 51200. The corresponding ISO settings for the Ricoh WG-6 are ISO 125 to ISO 6400 (no boost).
For many cameras, data on sensor performance has been reported by DXO Mark. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
| DXO |
|9.||Pentax K-3 II||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
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, but the WG-6 provides a better video resolution than the K-S1. It can shoot movie footage at 4K/30p, while the Pentax is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the K-S1 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the WG-6 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Pentax K-S1, the Ricoh WG-6, and comparable cameras.
|9.||Pentax K-3 II||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||n||Y|
The Ricoh WG-6 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 K-S1 and the WG-6 write their files to SDXC cards. The K-S1 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the WG-6 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 Pentax K-S1 and Ricoh WG-6 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|9.||Pentax K-3 II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
It is notable that the K-S1 has a hotshoe, while the WG-6 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Travel and landscape photographers will find it useful that the WG-6 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The WG-6 is a recent model that features in the current product line-up of Ricoh. In contrast, the K-S1 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the K-S1 was succeeded by the Pentax K-S2. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Pentax and Ricoh websites.
So what conclusions can be drawn? Is there a clear favorite between the Pentax K-S1 and the Ricoh WG-6? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Pentax K-S1:
- 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.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/6000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (5.4 vs 1 flaps/sec) to capture the decisive moment.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (410 versus 340) on a single battery charge.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More heavily discounted: Has been available for much longer (launched in August 2014).
Reasons to prefer the Ricoh WG-6:
- Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with an integrated lens, while the K-S1 requires a separate lens.
- More compact: Is smaller (118x66mm vs 121x93mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the K-S1).
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 20m).
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 4 years and 5 months of technical progress since the K-S1 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the match-up finishes in a tie (13 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 Pentax K-S1 and the Ricoh WG-6 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Travel-Zoom 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 K-S1 and the WG-6 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.
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.||Pentax K-S1||4/5||..||..||4.5/5||4/5||Aug 2014||749|
|2.||Ricoh WG-6||..||..||..||3.5/5||3.5/5||Feb 2019||399|
|3.||Canon SX740||..||+||..||4/5||4/5||Jul 2018||399|
|4.||Canon 750D||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|5.||Canon 760D||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|6.||Nikon D5300||4/5||+ +||79/100||4.5/5||4.5/5||Oct 2013||799|
|7.||Panasonic FT7||..||+||..||3.5/5||3.5/5||May 2018||449|
|8.||Pentax K-S2||4.5/5||..||..||5/5||4.5/5||Feb 2015||749|
|9.||Pentax K-3 II||4.5/5||..||..||5/5||5/5||Apr 2015||1,099|
|10.||Pentax K-50||5/5||..||..||5/5||4.5/5||Jun 2013||599|
|11.||Pentax K-500||..||..||..||4.5/5||4.5/5||Jun 2013||549|
|12.||Pentax K-3||4/5||..||83/100||5/5||5/5||Oct 2013||1,299|
|13.||Sony HX99||..||..||..||4/5||4.5/5||Aug 2018||449|
|14.||Sony HX95||..||..||..||..||..||Aug 2018||429|
|15.||Sony WX800||..||..||..||..||..||Oct 2018||399|
|16.||Sony A68||3/5||..||..||4/5||4/5||Nov 2015||699|
|17.||Sony A58||3/5||..||..||4.5/5||4.5/5||Feb 2013||599|
|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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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: Pentax K-S1 vs Ricoh WG-6
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||Pentax K-S1||Ricoh WG-6|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Pentax K mount lenses||28-140mm f/3.5-5.5|
|Launch Date||August 2014||February 2019|
|Launch Price||USD 749||USD 399|
|Sensor Specs||Pentax K-S1||Ricoh WG-6|
|Sensor Format||APS-C Sensor||1/2.3" Sensor|
|Sensor Size||23.5 x 15.6 mm||6.17 x 4.55 mm|
|Sensor Area||366.6 mm2||28.0735 mm2|
|Sensor Diagonal||28.2 mm||7.7 mm|
|Sensor Resolution||20 Megapixels||20.2 Megapixels|
|Image Resolution||5472 x 3648 pixels||5184 x 3888 pixels|
|Pixel Pitch||4.28 μm||1.18 μm|
|Pixel Density||5.45 MP/cm2||71.80 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||1080/30p Video||4K/30p Video|
|ISO Setting||100 - 51,200 ISO||125 - 6,400 ISO|
|DXO Sensor Quality (score)||78||..|
|DXO Color Depth (bits)||23.5||..|
|DXO Dynamic Range (EV)||13.0||..|
|DXO Low Light (ISO)||1061||..|
|Screen Specs||Pentax K-S1||Ricoh WG-6|
|Viewfinder Type||Optical viewfinder||no viewfinder|
|Viewfinder Field of View||100%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||921k dots||1040k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Pentax K-S1||Ricoh WG-6|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||5.4 shutter flaps/s||1 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||In-body stabilization||no handshake reduction|
|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||UHS-I||no|
|Connectivity Specs||Pentax K-S1||Ricoh WG-6|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 3.0|
|HDMI Port||micro HDMI||micro HDMI|
|Wifi Support||no Wifi||no Wifi|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Pentax K-S1||Ricoh WG-6|
|Environmental Sealing||not weather sealed||Waterproof body (20m)|
|Battery Life (CIPA)||410 shots per charge||340 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
121 x 93 x 70 mm
(4.8 x 3.7 x 2.8 in)
118 x 66 x 33 mm
(4.6 x 2.6 x 1.3 in)
|Camera Weight||558 g (19.7 oz)||246 g (8.7 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.