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Olympus E-M10 IV vs Pentax Q-S1

Portability
81
Imaging
63
Features
83
Overall
71
Olympus OM-D E-M10 IV front
 
Pentax Q-S1 front
Portability
92
Imaging
38
Features
54
Overall
44

Olympus E-M10 IV vs Pentax Q-S1 Key Specs

Olympus E-M10 IV
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Tilting Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 383g - 122 x 84 x 49mm
  • Announced August 2020
  • Old Model is Olympus E-M10 III
Pentax Q-S1
(Full Review)
  • 12MP - 1/1.7" Sensor
  • 3" Fixed Screen
  • ISO 100 - 12800
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax Q Mount
  • 203g - 105 x 58 x 34mm
  • Launched August 2014
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Olympus E-M10 IV vs Pentax Q-S1 Overview

Following is a in-depth analysis of the Olympus E-M10 IV and Pentax Q-S1, both Entry-Level Mirrorless cameras by manufacturers Olympus and Pentax. There is a big difference among the resolutions of the E-M10 IV (20MP) and Q-S1 (12MP) and the E-M10 IV (Four Thirds) and Q-S1 (1/1.7") come with totally different sensor dimensions.

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The E-M10 IV was introduced 6 years after the Q-S1 which is a fairly big gap as far as camera tech is concerned. Each of the cameras come with different body type with the Olympus E-M10 IV being a SLR-style mirrorless camera and the Pentax Q-S1 being a Rangefinder-style mirrorless camera.

Before we go through a comprehensive comparison, below is a quick summary of how the E-M10 IV matches up vs the Q-S1 in regards to portability, imaging, features and an overall score.

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Reasons to pick Olympus E-M10 IV over the Pentax Q-S1

 E-M10 IV Q-S1 
LaunchedAugust 2020August 2014More modern by 74 months
Screen typeTiltingFixed Tilting screen
Screen resolution1040k460kCrisper screen (+580k dot)
Selfie screen Easy selfies
Touch friendly screen Quickly navigate

Reasons to pick Pentax Q-S1 over the Olympus E-M10 IV

 Q-S1 E-M10 IV 

Common features in the Olympus E-M10 IV and Pentax Q-S1

 E-M10 IV Q-S1 
Focus manually More exact focus
Screen dimension3"3"Identical screen sizing

Olympus E-M10 IV vs Pentax Q-S1 Physical Comparison

If you're aiming to carry around your camera frequently, you're going to have to think about its weight and volume. The Olympus E-M10 IV comes with outer dimensions of 122mm x 84mm x 49mm (4.8" x 3.3" x 1.9") with a weight of 383 grams (0.84 lbs) whilst the Pentax Q-S1 has sizing of 105mm x 58mm x 34mm (4.1" x 2.3" x 1.3") with a weight of 203 grams (0.45 lbs).

Contrast the Olympus E-M10 IV and Pentax Q-S1 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you use at that time. Underneath is the front view size comparison of the E-M10 IV vs the Q-S1.

Olympus E-M10 IV vs Pentax Q-S1 size comparison

Taking into consideration size and weight, the portability grade of the E-M10 IV and Q-S1 is 81 and 92 respectively.

Olympus E-M10 IV vs Pentax Q-S1 top view buttons comparison

Olympus E-M10 IV vs Pentax Q-S1 Sensor Comparison

Usually, it is very difficult to see the contrast in sensor sizes simply by checking out specs. The pic below will help give you a stronger sense of the sensor sizes in the E-M10 IV and Q-S1.

As you can plainly see, both cameras posses different megapixels and different sensor sizes. The E-M10 IV using its bigger sensor will make shooting shallow DOF simpler and the Olympus E-M10 IV will produce extra detail using its extra 8 Megapixels. Higher resolution will let you crop pictures somewhat more aggressively. The fresher E-M10 IV is going to have an edge with regard to sensor innovation.

Olympus E-M10 IV vs Pentax Q-S1 sensor size comparison

Olympus E-M10 IV vs Pentax Q-S1 Screen and ViewFinder

Olympus E-M10 IV vs Pentax Q-S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Olympus E-M10 IV
Portrait photography with Pentax Q-S1
77
focusing manually
MP count good (20MP)
good sensor size (Four Thirds)
includes face detection autofocus
exports RAW formats
46
you can focus manually
offers face detection focusing
saves RAW files
MP count low (12 megapixels)
tiny sensor (1/1.7")
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Street Comparison

Olympus E-M10 IV as a Street photography camera
Pentax Q-S1 as a Street photography camera
84
tilting screen
image stabilization (Sensor based 5-axis)
good sensor size (Four Thirds)
exports RAW formats
offers focus by touch
great ISO range (25,600)
69
built in image stabilization (Sensor based)
saves RAW files
lighter than competition in class (203g)
screen is fixed
tiny sensor (1/1.7")
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Sports Comparison

Sports photography with Olympus E-M10 IV
Sports photography with Pentax Q-S1
73
quiet shooting (1/16,000s)
image stabilization (Sensor based 5-axis)
MP count good (20MP)
good sensor size (Four Thirds)
includes tracking autofocus
lack of phase detect autofocus
37
great max shutter speed (1/8,000 seconds)
built in image stabilization (Sensor based)
offers tracking autofocus
painfully slow continuous shooting (5.0 frames per second)
MP count low (12MP)
tiny sensor (1/1.7")
low battery (250 CIPA)
doesn't have phase detect AF
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Travel Comparison

Olympus E-M10 IV as a Travel photography camera
Pentax Q-S1 as a Travel photography camera
85
supports bluetooth
offers focus by touch
MP count good (20 megapixels)
flash built-in
selfie friendly display
60
lighter than competition in class (203g)
flash built-in
low battery (250 CIPA)
MP count low (12 megapixels)
display isn't selfie friendly
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Landscape Comparison

Olympus E-M10 IV as a Landscape photography camera
Pentax Q-S1 as a Landscape photography camera
83
focusing manually
switch lenses (Micro Four Thirds mount)
good sized screen (3 inch)
image stabilization (Sensor based 5-axis)
MP count good (20MP)
good sensor size (Four Thirds)
great ISO range (25,600)
exports RAW formats
55
you can focus manually
interchangeable lenses (Pentax Q mount)
good sized screen (3 inches)
built in image stabilization (Sensor based)
saves RAW files
MP count low (12MP)
tiny sensor (1/1.7")
low battery (250 CIPA)
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Vlogging Comparison

Olympus E-M10 IV Vlogging factors
Pentax Q-S1 Vlogging factors
78
selfie friendly display
touchscreen enabled
image stabilization (Sensor based 5-axis)
includes face detection autofocus
high res video (3840 x 2160 resolution)
doesn't have external microphone support
35
built in image stabilization (Sensor based)
offers face detection focusing
high res video (1920 x 1080 pxls)
lighter than competition in class (203g)
display isn't selfie friendly
lack of external mic support
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Olympus E-M10 IV vs Pentax Q-S1 Specifications

Detailed spec comparison table for Olympus E-M10 IV and Pentax Q-S1
 Olympus OM-D E-M10 IVPentax Q-S1
General Information
Manufacturer Olympus Pentax
Model Olympus OM-D E-M10 IV Pentax Q-S1
Category Entry-Level Mirrorless Entry-Level Mirrorless
Announced 2020-08-04 2014-08-04
Physical type SLR-style mirrorless Rangefinder-style mirrorless
Sensor Information
Chip TruePic VIII Q Engine
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds 1/1.7"
Sensor dimensions 17.4 x 13mm 7.44 x 5.58mm
Sensor area 226.2mm² 41.5mm²
Sensor resolution 20 megapixels 12 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 1:1, 4:3, 3:2 and 16:9
Full resolution 5184 x 3888 4000 x 3000
Max native ISO 25600 12800
Minimum native ISO 200 100
RAW pictures
Minimum boosted ISO 100 -
Autofocusing
Manual focus
AF touch
AF continuous
AF single
Tracking AF
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 121 -
Lens
Lens mounting type Micro Four Thirds Pentax Q
Amount of lenses 107 8
Crop factor 2.1 4.8
Screen
Display type Tilting Fixed Type
Display diagonal 3" 3"
Display resolution 1,040k dots 460k dots
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder type Electronic None
Viewfinder resolution 2,360k dots -
Viewfinder coverage 100 percent -
Viewfinder magnification 0.62x -
Features
Slowest shutter speed 60 secs 30 secs
Maximum shutter speed 1/4000 secs 1/8000 secs
Maximum quiet shutter speed 1/16000 secs -
Continuous shooting rate 8.7fps 5.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change WB
Image stabilization
Inbuilt flash
Flash range 7.20 m (at ISO 200) 4.90 m (at ISO 100)
Flash options Redeye, fill-in, off, redeye slow-sync (1st-curtain), slow sync (1st-curtain), slow sync (2nd-curtain), manual Auto, redeye reduction, slow sync, trailing curtain sync
Hot shoe
Auto exposure bracketing
WB bracketing
Maximum flash synchronize 1/250 secs -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 25p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 24p / 102 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 60p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 50p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 30p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 25p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 24p / 52 Mbps, MOV, H.264, Linear PCM 1920 x 1080 (30,25, 24p), 1280 x 720 (30, 25, 24p), 640 x 480 (30, 25, 24p)
Max video resolution 3840x2160 1920x1080
Video format MPEG-4, H.264 MPEG-4, H.264
Mic support
Headphone support
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 383 grams (0.84 lb) 203 grams (0.45 lb)
Dimensions 122 x 84 x 49mm (4.8" x 3.3" x 1.9") 105 x 58 x 34mm (4.1" x 2.3" x 1.3")
DXO scores
DXO All around score not tested not tested
DXO Color Depth score not tested not tested
DXO Dynamic range score not tested not tested
DXO Low light score not tested not tested
Other
Battery life 360 pictures 250 pictures
Battery style Battery Pack Battery Pack
Battery model BLS-50 D-LI68
Self timer Yes (2 or 12 sec, custom) Yes (2 or 12 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC (UHS-II supported) SD/SDHC/SDXC card
Card slots 1 1
Cost at launch $699 $250