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Olympus E-M10 IV vs Pentax W90

Portability
81
Imaging
62
Features
83
Overall
70
Olympus OM-D E-M10 IV front
 
Pentax Optio W90 front
Portability
94
Imaging
35
Features
21
Overall
29

Olympus E-M10 IV vs Pentax W90 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
  • Launched August 2020
  • Previous Model is Olympus E-M10 III
Pentax W90
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 80 - 6400
  • 1280 x 720 video
  • 28-140mm (F3.5-5.5) lens
  • 164g - 108 x 59 x 25mm
  • Introduced February 2010
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Olympus E-M10 IV vs Pentax W90 Overview

In this write-up, we will be analyzing the Olympus E-M10 IV and Pentax W90, former being a Entry-Level Mirrorless while the latter is a Waterproof by rivals Olympus and Pentax. There exists a noticeable gap between the image resolutions of the E-M10 IV (20MP) and W90 (12MP) and the E-M10 IV (Four Thirds) and W90 (1/2.3") enjoy totally different sensor sizing.

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The E-M10 IV was released 10 years later than the W90 and that is quite a sizable difference as far as technology is concerned. Each of the cameras offer different body type with the Olympus E-M10 IV being a SLR-style mirrorless camera and the Pentax W90 being a Compact camera.

Before getting straight into a complete comparison, below is a short view of how the E-M10 IV grades vs the W90 with respect to portability, imaging, features and an overall rating.

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Reasons to pick Olympus E-M10 IV over the Pentax W90

 E-M10 IV W90 
IntroducedAugust 2020February 2010Fresher by 128 months
Screen typeTiltingFixed Tilting screen
Screen sizing3"2.7"Bigger screen (+0.3")
Screen resolution1040k230kCrisper screen (+810k dot)
Selfie screen Easy selfies
Touch screen Quickly navigate

Reasons to pick Pentax W90 over the Olympus E-M10 IV

 W90 E-M10 IV 

Common features in the Olympus E-M10 IV and Pentax W90

 E-M10 IV W90 
Focus manually Very precise focusing

Olympus E-M10 IV vs Pentax W90 Physical Comparison

For those who are going to carry your camera regularly, you'll have to factor its weight and proportions. The Olympus E-M10 IV enjoys external measurements of 122mm x 84mm x 49mm (4.8" x 3.3" x 1.9") accompanied by a weight of 383 grams (0.84 lbs) and the Pentax W90 has measurements of 108mm x 59mm x 25mm (4.3" x 2.3" x 1.0") having a weight of 164 grams (0.36 lbs).

Examine the Olympus E-M10 IV and Pentax W90 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an ILC will change depending on the lens you have attached during that time. Following is the front view size comparison of the E-M10 IV compared to the W90.

Olympus E-M10 IV vs Pentax W90 size comparison

Using dimensions and weight, the portability grade of the E-M10 IV and W90 is 81 and 94 respectively.

Olympus E-M10 IV vs Pentax W90 top view buttons comparison

Olympus E-M10 IV vs Pentax W90 Sensor Comparison

Sometimes, it's tough to see the gap between sensor sizing purely by reading specifications. The visual below will offer you a far better sense of the sensor measurements in the E-M10 IV and W90.

Plainly, the 2 cameras offer different megapixels and different sensor sizing. The E-M10 IV featuring a bigger sensor will make achieving shallower depth of field easier and the Olympus E-M10 IV will deliver greater detail as a result of its extra 8 Megapixels. Higher resolution will enable you to crop photographs a little more aggressively. The more modern E-M10 IV will have an advantage when it comes to sensor innovation.

Olympus E-M10 IV vs Pentax W90 sensor size comparison

Olympus E-M10 IV vs Pentax W90 Screen and ViewFinder

Olympus E-M10 IV vs Pentax W90 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Olympus E-M10 IV
Portrait photography with Pentax W90
77
manual focus
megapixel count good (20 megapixels)
sensor size is decent (Four Thirds)
provides face detection focusing
saves RAW formats
27
focusing manually
no manual mode
no external flash support
MP count low (12 megapixels)
small sensor size (1/2.3")
doesn't have RAW files
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Street Comparison

Street photography with Olympus E-M10 IV
Street photography with Pentax W90
84
has a tilting screen
built in image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
saves RAW formats
comes with touch focus
good ISO range (25,600)
54
weather proof
screen does not articulate
no image stabilization
small sensor size (1/2.3")
doesn't have RAW files
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Sports Comparison

Olympus E-M10 IV Sports photography information
Pentax W90 Sports photography information
72
quiet shooting (1/16,000 seconds)
built in image stabilization (Sensor based 5-axis)
megapixel count good (20 megapixels)
sensor size is decent (Four Thirds)
provides tracking autofocus
lacks phase detect AF
24
weather proof
slow continuous shooting (1.0 fps)
no shutter priority mode
no image stabilization
MP count low (12 megapixels)
small sensor size (1/2.3")
doesn't have phase detect auto focus
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Travel Comparison

Olympus E-M10 IV Travel photography features
Pentax W90 Travel photography features
84
has bluetooth
comes with touch focus
megapixel count good (20 megapixels)
flash built-in
display is selfie friendly
64
weather proof
has built in flash
fairly wide (28mm)
MP count low (12 megapixels)
does not have selfie friendly display
somewhat slow max aperture (f3.5)
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Landscape Comparison

Landscape photography with Olympus E-M10 IV
Landscape photography with Pentax W90
82
manual focus
interchangeable lenses (Micro Four Thirds mount)
screen is a good size (3 inch)
built in image stabilization (Sensor based 5-axis)
megapixel count good (20 megapixels)
sensor size is decent (Four Thirds)
good ISO range (25,600)
saves RAW formats
37
focusing manually
fairly wide (28mm)
weather proof
lens is fixed (fixed lens mount)
somewhat slow max aperture (f3.5)
tiny screen (2.7 inch)
no manual mode
no image stabilization
MP count low (12MP)
small sensor size (1/2.3")
doesn't have RAW files
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Vlogging Comparison

Olympus E-M10 IV Vlogging details
Pentax W90 Vlogging details
78
display is selfie friendly
touchscreen functionality
built in image stabilization (Sensor based 5-axis)
provides face detection focusing
video res high (3840 x 2160 resolution)
no external microphone jack
25
fairly wide (28mm)
somewhat slow max aperture (f3.5)
does not have selfie friendly display
no image stabilization
video quality not great (1280 x 720 resolution)
no microphone jack
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Olympus E-M10 IV vs Pentax W90 Specifications

Detailed spec comparison table for Olympus E-M10 IV and Pentax W90
 Olympus OM-D E-M10 IVPentax Optio W90
General Information
Brand Olympus Pentax
Model Olympus OM-D E-M10 IV Pentax Optio W90
Type Entry-Level Mirrorless Waterproof
Launched 2020-08-04 2010-02-24
Body design SLR-style mirrorless Compact
Sensor Information
Processor TruePic VIII Prime
Sensor type CMOS CCD
Sensor size Four Thirds 1/2.3"
Sensor measurements 17.4 x 13mm 6.17 x 4.55mm
Sensor surface area 226.2mm² 28.1mm²
Sensor resolution 20 megapixels 12 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 4:3, 3:2 and 16:9
Peak resolution 5184 x 3888 4000 x 3000
Highest native ISO 25600 6400
Minimum native ISO 200 80
RAW format
Minimum enhanced ISO 100 -
Autofocusing
Focus manually
AF touch
AF continuous
Single AF
Tracking AF
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points 121 9
Lens
Lens mount Micro Four Thirds fixed lens
Lens focal range - 28-140mm (5.0x)
Largest aperture - f/3.5-5.5
Macro focus range - 1cm
Available lenses 107 -
Crop factor 2.1 5.8
Screen
Range of display Tilting Fixed Type
Display size 3" 2.7"
Resolution of display 1,040 thousand dot 230 thousand dot
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder type Electronic None
Viewfinder resolution 2,360 thousand dot -
Viewfinder coverage 100% -
Viewfinder magnification 0.62x -
Features
Minimum shutter speed 60 seconds 4 seconds
Fastest shutter speed 1/4000 seconds 1/1500 seconds
Fastest quiet shutter speed 1/16000 seconds -
Continuous shutter speed 8.7 frames/s 1.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Custom WB
Image stabilization
Built-in flash
Flash range 7.20 m (at ISO 200) 3.90 m
Flash options Redeye, fill-in, off, redeye slow-sync (1st-curtain), slow sync (1st-curtain), slow sync (2nd-curtain), manual Auto, On, Off, Red-eye, Soft
Hot shoe
AEB
WB bracketing
Fastest flash sync 1/250 seconds -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
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 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Highest video resolution 3840x2160 1280x720
Video format MPEG-4, H.264 Motion JPEG
Microphone input
Headphone input
Connectivity
Wireless Built-In Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 383 gr (0.84 lbs) 164 gr (0.36 lbs)
Dimensions 122 x 84 x 49mm (4.8" x 3.3" x 1.9") 108 x 59 x 25mm (4.3" x 2.3" x 1.0")
DXO scores
DXO Overall 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 -
Battery format Battery Pack -
Battery model BLS-50 D-LI68
Self timer Yes (2 or 12 sec, custom) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC (UHS-II supported) SD/SDHC card, Internal
Storage slots 1 1
Cost at release $699 $120