Pentax K-S1 vs Sony RX10 II
69 Imaging
62 Features
70 Overall
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58 Imaging
51 Features
77 Overall
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Pentax K-S1 vs Sony RX10 II Key Specs
(Full Review)
- 20MP - APS-C Sensor
- 3" Fixed Display
- ISO 100 - 51200
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/6000s Max Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 558g - 121 x 93 x 70mm
- Introduced August 2014
- Later Model is Pentax K-S2
(Full Review)
- 20MP - 1" Sensor
- 3" Tilting Display
- ISO 125 - 12800 (Boost to 25600)
- Optical Image Stabilization
- 3840 x 2160 video
- 24-200mm (F2.8) lens
- 813g - 129 x 88 x 102mm
- Launched June 2015
- Earlier Model is Sony RX10
- Replacement is Sony RX10 III
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Below is a thorough analysis of the Pentax K-S1 versus Sony RX10 II, former being a Advanced DSLR while the other is a Large Sensor Superzoom by manufacturers Pentax and Sony. The sensor resolution of the K-S1 (20MP) and the RX10 II (20MP) is fairly close but the K-S1 (APS-C) and RX10 II (1") posses totally different sensor sizes.
Snapchat Adds Watermarks to AI-Created ImagesThe K-S1 was introduced 9 months before the RX10 II which means that they are both of a similar age. Each of these cameras feature different body design with the Pentax K-S1 being a Mid-size SLR camera and the Sony RX10 II being a SLR-like (bridge) camera.
Before we go right into a step-by-step comparison, here is a quick highlight of how the K-S1 matches up versus the RX10 II for portability, imaging, features and an overall grade.
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Following is a sample of the gallery pictures for Pentax K-S1 & Sony Cyber-shot DSC-RX10 II. The whole galleries are provided at Pentax K-S1 Gallery & Sony RX10 II Gallery.
Reasons to pick Pentax K-S1 over the Sony RX10 II
| K-S1 | RX10 II |
|---|
Reasons to pick Sony RX10 II over the Pentax K-S1
| RX10 II | K-S1 | |||
|---|---|---|---|---|
| Launched | June 2015 | August 2014 | More recent by 9 months | |
| Display type | Tilting | Fixed | Tilting display | |
| Display resolution | 1229k | 921k | Clearer display (+308k dot) |
Common features in the Pentax K-S1 and Sony RX10 II
| K-S1 | RX10 II | |||
|---|---|---|---|---|
| Manually focus | Very exact focus | |||
| Display size | 3" | 3" | Same display dimensions | |
| Selfie screen | Missing selfie screen | |||
| Touch friendly display | Missing Touch friendly display |
Pentax K-S1 vs Sony RX10 II Physical Comparison
For anyone who is aiming to lug around your camera, you'll have to factor in its weight and size. The Pentax K-S1 comes with outer dimensions of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") accompanied by a weight of 558 grams (1.23 lbs) while the Sony RX10 II has specifications of 129mm x 88mm x 102mm (5.1" x 3.5" x 4.0") with a weight of 813 grams (1.79 lbs).
Take a look at the Pentax K-S1 versus Sony RX10 II in our newest Camera & Lens Size Comparison Tool.
Take into consideration, the weight of an ILC will differ depending on the lens you are using at that moment. Underneath is a front view physical size comparison of the K-S1 against the RX10 II.

Using size and weight, the portability rating of the K-S1 and RX10 II is 69 and 58 respectively.
Pentax K-S1 vs Sony RX10 II Sensor Comparison
Oftentimes, it is very tough to see the gap in sensor measurements purely by looking through specs. The graphic below will help provide you a more clear sense of the sensor sizes in the K-S1 and RX10 II.
All in all, both of these cameras feature the identical resolution but not the same sensor measurements. The K-S1 provides the larger sensor which should make obtaining shallower depth of field simpler. The older K-S1 will be behind when it comes to sensor technology.
Pentax K-S1 vs Sony RX10 II Screen and ViewFinder
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Pentax K-S1 vs Sony RX10 II Specifications
| Pentax K-S1 | Sony Cyber-shot DSC-RX10 II | |
|---|---|---|
| General Information | ||
| Company | Pentax | Sony |
| Model | Pentax K-S1 | Sony Cyber-shot DSC-RX10 II |
| Class | Advanced DSLR | Large Sensor Superzoom |
| Introduced | 2014-08-27 | 2015-06-10 |
| Physical type | Mid-size SLR | SLR-like (bridge) |
| Sensor Information | ||
| Processor Chip | Prime MII | Bionz X |
| Sensor type | CMOS | BSI-CMOS |
| Sensor size | APS-C | 1" |
| Sensor measurements | 23.5 x 15.6mm | 13.2 x 8.8mm |
| Sensor surface area | 366.6mm² | 116.2mm² |
| Sensor resolution | 20 megapixels | 20 megapixels |
| Anti aliasing filter | ||
| Aspect ratio | 3:2 | 1:1, 4:3, 3:2 and 16:9 |
| Max resolution | 5472 x 3648 | 5472 x 3648 |
| Max native ISO | 51200 | 12800 |
| Max enhanced ISO | - | 25600 |
| Min native ISO | 100 | 125 |
| RAW data | ||
| Min enhanced ISO | - | 64 |
| Autofocusing | ||
| Focus manually | ||
| Touch focus | ||
| Continuous AF | ||
| Single AF | ||
| Tracking AF | ||
| AF selectice | ||
| AF center weighted | ||
| AF multi area | ||
| Live view AF | ||
| Face detect AF | ||
| Contract detect AF | ||
| Phase detect AF | ||
| Number of focus points | 11 | 25 |
| Lens | ||
| Lens mount | Pentax KAF2 | fixed lens |
| Lens focal range | - | 24-200mm (8.3x) |
| Max aperture | - | f/2.8 |
| Macro focus distance | - | 3cm |
| Total lenses | 151 | - |
| Crop factor | 1.5 | 2.7 |
| Screen | ||
| Type of display | Fixed Type | Tilting |
| Display diagonal | 3 inch | 3 inch |
| Resolution of display | 921 thousand dots | 1,229 thousand dots |
| Selfie friendly | ||
| Liveview | ||
| Touch screen | ||
| Viewfinder Information | ||
| Viewfinder | Optical (pentaprism) | Electronic |
| Viewfinder resolution | - | 2,359 thousand dots |
| Viewfinder coverage | 100% | 100% |
| Viewfinder magnification | 0.64x | 0.7x |
| Features | ||
| Min shutter speed | 30 seconds | 30 seconds |
| Max shutter speed | 1/6000 seconds | 1/2000 seconds |
| Max quiet shutter speed | - | 1/32000 seconds |
| Continuous shutter rate | 5.4 frames/s | 14.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Change WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash range | 10.00 m (at ISO 100) | 10.20 m |
| Flash settings | Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual | Auto, fill-flash, slow sync, rear sync, off |
| External flash | ||
| AE bracketing | ||
| White balance bracketing | ||
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Supported video resolutions | 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps) | 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p) ,1440 x 1080 (30p), 640 x 480 (30p) |
| Max video resolution | 1920x1080 | 3840x2160 |
| Video data format | H.264 | MPEG-4, AVCHD, XAVC S |
| Microphone support | ||
| Headphone support | ||
| Connectivity | ||
| Wireless | Eye-Fi Connected | Built-In |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | Optional | None |
| Physical | ||
| Environment sealing | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 558 grams (1.23 pounds) | 813 grams (1.79 pounds) |
| Physical dimensions | 121 x 93 x 70mm (4.8" x 3.7" x 2.8") | 129 x 88 x 102mm (5.1" x 3.5" x 4.0") |
| DXO scores | ||
| DXO Overall score | 78 | 70 |
| DXO Color Depth score | 23.5 | 23.0 |
| DXO Dynamic range score | 13.0 | 12.6 |
| DXO Low light score | 1061 | 531 |
| Other | ||
| Battery life | 410 images | 400 images |
| Form of battery | Battery Pack | Battery Pack |
| Battery model | D-LI109 | NP-FW50 |
| Self timer | Yes ( 2 or 12 seconds) | Yes (2 or 10 sec, continuous) |
| Time lapse feature | ||
| Storage type | SD/SDHC/SDXC | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
| Card slots | One | One |
| Cost at release | $339 | $998 |