• 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600
  • 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 819,200

Buy From

Differences

Olympus E-M10 advantages over Pentax K-1 II

  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    45 mm vs 85 mm
    Thinner
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    8.1 fps vs 4.5 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    8.1 fps vs 4.6 fps
    Faster RAW shooting in burst mode

Pentax K-1 II advantages over Olympus E-M10

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.88 vs 3.75 microns
    Better low-light and dynamic range (all else equal)
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Longer stills battery life
    More info 670 vs 320 shots
    Capture more photos
  • More telephoto lens reach
    105 mm vs 84 mm
    Capture objects farther away with the kit lens
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Newer
    7 years vs 11 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Less shutter lag
    0.10 vs 0.23 sec
    Focus and take a photo quickly (wide angle)
  • More viewfinder magnification
    0.70x vs 0.58x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    36.4 vs 16.1 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Optional anti-aliasing filter
    Optional vs None
    Lets you choose sharper photos or reduced moiré
  • Bigger JPEG buffer
    77 vs 19 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    819200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Olympus E-M10
Body Only
  • Body Only
  • Kit with 14-42mm Lens
All E-M10 Deals

Your purchases support this site

Buy the Pentax K-1 II
Body Only
  • Body Only
  • Kit with 28-105mm Lens
All K-1 II Deals

Review Excerpt

  • Great image quality especially from RAW files; Excellent dynamic range for a Four Thirds sensor; Very good high ISO performance; Realistic colors and excellent hue accuracy; Built-in Wi-Fi with remote control and sharing features; Improved HD video; Lightweight and very portable; Built-in pop-up flash; Minimal EVF lag time.

  • Contrast-Detect AF struggles with small and low-contrast subjects; Mediocre battery life; No external microphone or headphone jack; Mediocre burst speed with continuous AF; No weather sealing; Heavy-handed high ISO noise reduction.

  • Read our Olympus E-M10 Review

  • Excellent build and comfortable handling; Bright, roomy viewfinder and articulated LCD; Great image quality; Good performance for the class; In-camera stabilization, GPS and Wi-Fi; Incredibly feature-rich design.

  • Bulkier than APS-C DSLRs; Top ISOs are for the spec sheet, not the real world; JPEGs are a bit punchy by default; Slow startup; Below-average battery life; Only a relatively modest update to the K-1.

  • Read our Pentax K-1 II Review

The Competition

Compared to Panasonic GX7

Olympus E-M10
Panasonic GX7
  • $399
  • 4/3
  • Less expensive
  • Higher effective ISO
  • $648
  • 4/3
  • In-camera panoramas
  • Fast startup

Compare Olympus E-M10 vs Panasonic GX7

Pentax K-1 II
Panasonic GX7
  • $1747
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $648
  • 4/3
  • Touchscreen
  • In-camera panoramas

Compare Pentax K-1 II vs Panasonic GX7

Compared to Olympus E-M10 II

Olympus E-M10
Olympus E-M10 II
  • $399
  • 4/3
  • $349
  • 4/3
  • Fast startup
  • Shoots 24p video

Compare Olympus E-M10 vs Olympus E-M10 II

Pentax K-1 II
Olympus E-M10 II
  • $1747
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $349
  • 4/3
  • Less expensive
  • Touchscreen

Compare Pentax K-1 II vs Olympus E-M10 II

Compared to Panasonic GX85

Olympus E-M10
Panasonic GX85
  • $399
  • 4/3
  • Higher effective ISO
  • More telephoto lens reach
  • $598
  • 4/3
  • Shoot 4K video
  • In-camera panoramas

Compare Olympus E-M10 vs Panasonic GX85

Pentax K-1 II
Panasonic GX85
  • $1747
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $598
  • 4/3
  • Less expensive
  • Shoot 4K video

Compare Pentax K-1 II vs Panasonic GX85

Compared to Canon 5D Mark IV

Olympus E-M10
Canon 5D Mark IV
  • $399
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $2249
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 vs Canon 5D Mark IV

Pentax K-1 II
Canon 5D Mark IV
  • $1747
  • 35mm
  • Less expensive
  • Focus peaking
  • $2249
  • 35mm
  • Shoot 4K video
  • Touchscreen

Compare Pentax K-1 II vs Canon 5D Mark IV

Compared to Nikon D850

Olympus E-M10
Nikon D850
  • $399
  • 4/3
  • In-Camera Image Stabilization
  • Internal flash
  • $2464
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 vs Nikon D850

Pentax K-1 II
Nikon D850
  • $1747
  • 35mm
  • In-Camera Image Stabilization
  • High resolution composite
  • $2464
  • 35mm
  • Shoot 4K video
  • Touchscreen

Compare Pentax K-1 II vs Nikon D850

Compare Other Cameras?