• 35mm 855.6mm2
  • 24.3 megapixels
  • ISO 100 - 25,600
  • 4/3 226.2mm2
  • 16.1 megapixels
  • ISO 200 - 25,600

Buy From

Differences

Sony A7 II advantages over Olympus E-M10 III

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.97 vs 3.78 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More viewfinder magnification
    0.71x vs 0.62x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    24.3 vs 16.1 megapixels
    Higher resolution photos
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Higher extended ISO
    51200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Olympus E-M10 III advantages over Sony A7 II

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $799 vs $1598
    Save money for lenses or accessories
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Fast startup
    ~1.00 vs 1.7 sec
    Faster startup lets you catch the moment
  • More telephoto lens reach
    84 mm vs 70 mm
    Capture objects farther away with the kit lens
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Newer
    7 years vs 10 years old
    Newer cameras often support more advanced features
  • Lighter weight
    503g vs 930g
    Lighter weight
  • Less shutter lag
    0.14 vs 0.22 sec
    Focus and take a photo quickly (wide angle)
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    8.6 fps vs 5.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    Unlimited vs 52 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    8.6 fps vs 5.0 fps
    Faster RAW shooting in burst mode
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

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
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Dual card slots
    Neither provide
    Gives you more storage flexibility

User reviews

Buy From

Your purchases support this site

Buy the Sony A7 II
Body Only
  • Body Only
  • Kit with 28-70mm Lens
All A7 II Deals

Your purchases support this site

Buy the Olympus E-M10 III
Body Only (Black)
  • Body Only (Black)
  • Body Only (Silver)
  • Kit with 14-42mm EZ lens (Black)
  • Kit with 14-42mm EZ lens (Silver)
All E-M10 III Deals

Review Excerpt

  • Excellent 5-axis sensor-shift image stabilization; Sensor-shift IS brings stabilization to nearly any lens; Much-improved ergonomics and top-deck control layout; 'Mark II' maintains same impressive image quality, dynamic range and high ISO performance; XAVC S 50Mbps video format; Faster start-up time; Hybrid AF performs well with good continuous AF.

  • (Similar to A7): Loud shutter (but electronic first-curtain helps); Battery life could be better; Low-light AF still not as good as most DSLRs; High ISO JPEGs look over-processed; Slow buffer clearing; Limited selection of native Sony FE lenses (but it's getting better).

  • Read our Sony A7 II Review

  • Superbly-built, comfortable and compact body; Pairs beautifully with pancake kit lens; Excellent image quality; Excellent performance in most respects; Great single-shot autofocus; Really nice viewfinder and touch-screen display; Friendlier user interface courts amateurs.

  • Some controls are a bit small and tightly-packed; Hand grips are still a bit modestly-sized for larger lenses; Continuous and video autofocus just isn't up to snuff; New user interface can feel limiting to advanced photographers; Underwhelming battery life.

  • Read our Olympus E-M10 III Review

The Competition

Compared to Sony A7

Sony A7 II
Sony A7
  • $1148
  • 35mm
  • In-Camera Image Stabilization
  • $748
  • 35mm
  • Less expensive

Compare Sony A7 II vs Sony A7

Olympus E-M10 III
Sony A7
  • $549
  • 4/3
  • Lens selection
  • In-Camera Image Stabilization
  • $748
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 III vs Sony A7

Compared to Olympus E-M10 II

Sony A7 II
Olympus E-M10 II
  • $1148
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $349
  • 4/3
  • Lens selection
  • Less expensive

Compare Sony A7 II vs Olympus E-M10 II

Olympus E-M10 III
Olympus E-M10 II
  • $549
  • 4/3
  • Shoot 4K video
  • Bigger JPEG buffer
  • $349
  • 4/3
  • Less expensive

Compare Olympus E-M10 III vs Olympus E-M10 II

Compared to Leica SL (Typ 601)

Sony A7 II
Leica SL (Typ 601)
  • $1148
  • 35mm
  • Less expensive
  • In-Camera Image Stabilization
  • $3802
  • 35mm
  • Shoot 4K video
  • Touchscreen

Compare Sony A7 II vs Leica SL (Typ 601)

Olympus E-M10 III
Leica SL (Typ 601)
  • $549
  • 4/3
  • Less expensive
  • In-Camera Image Stabilization
  • $3802
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 III vs Leica SL (Typ 601)

Compared to Panasonic GX85

Sony A7 II
Panasonic GX85
  • $1148
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $598
  • 4/3
  • Lens selection
  • Less expensive

Compare Sony A7 II vs Panasonic GX85

Olympus E-M10 III
Panasonic GX85
  • $549
  • 4/3
  • More telephoto lens reach
  • Higher max flash sync
  • $598
  • 4/3
  • Less expensive
  • In-camera panoramas

Compare Olympus E-M10 III vs Panasonic GX85

Compared to Sony A7 III

Sony A7 II
Sony A7 III
  • $1148
  • 35mm
  • In-camera panoramas
  • $1531
  • 35mm
  • Shoot 4K video
  • Touchscreen

Compare Sony A7 II vs Sony A7 III

Olympus E-M10 III
Sony A7 III
  • $549
  • 4/3
  • Lens selection
  • Less expensive
  • $1531
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 III vs Sony A7 III

Compare Other Cameras?