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Olympus TG-870 vs Pentax S1

Portability
91
Imaging
41
Features
46
Overall
43
Olympus Stylus Tough TG-870 front
 
Pentax Optio S1 front
Portability
93
Imaging
37
Features
31
Overall
34

Olympus TG-870 vs Pentax S1 Key Specs

Olympus TG-870
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Tilting Display
  • ISO 125 - 6400 (Increase to 12800)
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 21-105mm (F3.5-5.7) lens
  • 221g - 113 x 64 x 28mm
  • Released January 2016
  • Superseded the Olympus TG-860
Pentax S1
(Full Review)
  • 14MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 80 - 6400
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-140mm (F3.5-5.5) lens
  • 157g - 114 x 58 x 28mm
  • Launched March 2011
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Olympus TG-870 vs Pentax S1 Overview

Below, we will be evaluating the Olympus TG-870 vs Pentax S1, former is a Ultracompact while the latter is a Small Sensor Compact by competitors Olympus and Pentax. The resolution of the TG-870 (16MP) and the S1 (14MP) is relatively well matched and they feature the exact same sensor size (1/2.3").

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The TG-870 was manufactured 4 years after the S1 which is quite a serious difference as far as tech is concerned. Both the cameras come with different body type with the Olympus TG-870 being a Ultracompact camera and the Pentax S1 being a Compact camera.

Before we go in to a detailed comparison, below is a concise view of how the TG-870 matches up versus the S1 in relation to portability, imaging, features and an overall score.

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Reasons to pick Olympus TG-870 over the Pentax S1

 TG-870 S1 
LaunchedJanuary 2016March 2011More modern by 60 months
Screen typeTiltingFixed Tilting screen
Screen dimension3"2.7"Bigger screen (+0.3")
Screen resolution921k230kClearer screen (+691k dot)

Reasons to pick Pentax S1 over the Olympus TG-870

 S1 TG-870 
Manually focus Dial accurate focusing

Common features in the Olympus TG-870 and Pentax S1

 TG-870 S1 
Selfie screen Neither provides selfie screen
Touch friendly screen Lack of Touch friendly screen

Olympus TG-870 vs Pentax S1 Physical Comparison

For anyone who is aiming to carry around your camera frequently, you will have to take into account its weight and measurements. The Olympus TG-870 provides exterior dimensions of 113mm x 64mm x 28mm (4.4" x 2.5" x 1.1") with a weight of 221 grams (0.49 lbs) and the Pentax S1 has proportions of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") accompanied by a weight of 157 grams (0.35 lbs).

Check the Olympus TG-870 vs Pentax S1 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an ILC will change based on the lens you are utilising during that time. The following is the front view proportions comparison of the TG-870 and the S1.

Olympus TG-870 vs Pentax S1 size comparison

Factoring in size and weight, the portability rating of the TG-870 and S1 is 91 and 93 respectively.

Olympus TG-870 vs Pentax S1 top view buttons comparison

Olympus TG-870 vs Pentax S1 Sensor Comparison

Generally, its tough to imagine the contrast between sensor sizes only by looking at specs. The image below will provide you a clearer sense of the sensor sizes in the TG-870 and S1.

As you can plainly see, each of the cameras have got the exact same sensor measurements albeit different resolution. You can count on the Olympus TG-870 to give extra detail due to its extra 2MP. Higher resolution can also make it easier to crop pictures much more aggressively. The fresher TG-870 should have an edge with regard to sensor technology.

Olympus TG-870 vs Pentax S1 sensor size comparison

Olympus TG-870 vs Pentax S1 Screen and ViewFinder

Olympus TG-870 vs Pentax S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus TG-870 Portrait photography info
Pentax S1 Portrait photography info
36
decent megapixels (16MP)
features face detect autofocus
focusing manually not possible
lack of manual exposure
external flash not possible
tiny sensor size (1/2.3")
lacks RAW support
35
you can focus manually
good megapixels (14MP)
no manual mode
cannot use external flash
tiny sensor size (1/2.3")
no RAW format
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Street Comparison

Olympus TG-870 Street photography information
Pentax S1 Street photography information
65
screen tilts
has image stabilization (Optical)
weather proofing
tiny sensor size (1/2.3")
lacks RAW support
heavier than others (221g)
56
built in image stabilization (Sensor-shift)
no moving screen
tiny sensor size (1/2.3")
no RAW format
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Sports Comparison

Olympus TG-870 Sports photography features
Pentax S1 Sports photography features
51
has image stabilization (Optical)
decent megapixels (16 megapixels)
features tracking focus
weather proofing
better than average battery (300 per charge)
no shutter priority
tiny sensor size (1/2.3")
lacks phase detect autofocus
39
built in image stabilization (Sensor-shift)
good megapixels (14 megapixels)
supports tracking autofocus
max fps very slow (1.0 frames per second)
lack of shutter priority mode
tiny sensor size (1/2.3")
no phase detect AF
Photography Glossary

Travel Comparison

Olympus TG-870 as a Travel photography camera
Pentax S1 as a Travel photography camera
69
better than average battery (300 per charge)
weather proofing
decent megapixels (16 megapixels)
flash built-in
pretty wide (21mm)
heavier than others (221g)
screen isn't selfie friendly
slow maximum aperture (f3.5)
64
good megapixels (14MP)
flash built-in
fairly wide (28mm)
no Timelapse mode
display is not selfie friendly
somewhat slow maximum aperture (f3.5)
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Landscape Comparison

Olympus TG-870 Landscape photography factors
Pentax S1 Landscape photography factors
50
pretty wide (21mm)
nice screen size (3 inches)
has image stabilization (Optical)
decent megapixels (16MP)
weather proofing
better than average battery (300 CIPA)
focusing manually not possible
cannot swap lenses (fixed lens mount)
slow maximum aperture (f3.5)
lack of manual exposure
tiny sensor size (1/2.3")
lacks RAW support
42
you can focus manually
fairly wide (28mm)
built in image stabilization (Sensor-shift)
good megapixels (14MP)
can't change lens (fixed lens mount)
somewhat slow maximum aperture (f3.5)
screen is small (2.7 inches)
no manual mode
tiny sensor size (1/2.3")
no RAW format
no Timelapse mode
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Vlogging Comparison

Olympus TG-870 Vlogging details
Pentax S1 Vlogging details
32
pretty wide (21mm)
has image stabilization (Optical)
features face detect autofocus
video res high (1920 x 1080 resolution)
slow maximum aperture (f3.5)
screen isn't selfie friendly
lack of mic jack
heavier than others (221g)
28
fairly wide (28mm)
built in image stabilization (Sensor-shift)
somewhat slow maximum aperture (f3.5)
display is not selfie friendly
low res video (1280 x 720 pixels)
no external microphone port
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Olympus TG-870 vs Pentax S1 Specifications

Detailed spec comparison table for Olympus TG-870 and Pentax S1
 Olympus Stylus Tough TG-870Pentax Optio S1
General Information
Brand Name Olympus Pentax
Model type Olympus Stylus Tough TG-870 Pentax Optio S1
Class Ultracompact Small Sensor Compact
Released 2016-01-06 2011-03-02
Body design Ultracompact Compact
Sensor Information
Powered by TruePic VII -
Sensor type BSI-CMOS CCD
Sensor size 1/2.3" 1/2.3"
Sensor measurements 6.17 x 4.55mm 6.17 x 4.55mm
Sensor area 28.1mm² 28.1mm²
Sensor resolution 16 megapixels 14 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 1:1, 4:3 and 16:9
Peak resolution 4608 x 3456 4288 x 3216
Highest native ISO 6400 6400
Highest enhanced ISO 12800 -
Lowest native ISO 125 80
RAW data
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Single autofocus
Autofocus tracking
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points - 9
Lens
Lens mount type fixed lens fixed lens
Lens zoom range 21-105mm (5.0x) 28-140mm (5.0x)
Max aperture f/3.5-5.7 f/3.5-5.5
Macro focusing range 1cm 1cm
Crop factor 5.8 5.8
Screen
Range of display Tilting Fixed Type
Display sizing 3 inch 2.7 inch
Resolution of display 921k dot 230k dot
Selfie friendly
Liveview
Touch display
Display tech - TFT color LCD with Anti-reflective coating
Viewfinder Information
Viewfinder type None None
Features
Min shutter speed 4 secs 4 secs
Max shutter speed 1/2000 secs 1/1500 secs
Continuous shutter speed 7.0 frames/s 1.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Custom white balance
Image stabilization
Inbuilt flash
Flash distance 4.00 m (at ISO 1600) 3.90 m
Flash modes Auto, redeye reduction, fill flash, off, LED illuminator Auto, On, Off, Red-eye, Soft
External flash
AE bracketing
WB bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (60p), 1280 x 720 (60p), 640 x 480 (60p) 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Highest video resolution 1920x1080 1280x720
Video format MPEG-4, H.264 Motion JPEG
Microphone jack
Headphone jack
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS BuiltIn None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 221 gr (0.49 pounds) 157 gr (0.35 pounds)
Dimensions 113 x 64 x 28mm (4.4" x 2.5" x 1.1") 114 x 58 x 28mm (4.5" x 2.3" x 1.1")
DXO scores
DXO Overall rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Battery life 300 shots 260 shots
Type of battery Battery Pack Battery Pack
Battery ID Li-50B D-LI92
Self timer Yes (2 or 10 sec, custom) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC, Internal SD/SDHC/SDXC, Internal
Storage slots Single Single
Retail price $280 $174