• APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 12,800
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 6400

Buy From

Differences

Nikon D3300 advantages over Olympus E-M5 III

  • Less expensive
    $16 vs $1099
    Save money for lenses or accessories
  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 3.92 vs 3.36 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Longer stills battery life
    More info 700 vs 310 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • More pixels
    24.2 vs 20.4 megapixels
    Higher resolution photos
  • Bigger JPEG buffer
    100 vs 26 shots
    Take more JPEG shots before waiting (burst mode)

Olympus E-M5 III advantages over Nikon D3300

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    4K (DCI) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Thinner
    49 mm vs 75 mm
    Thinner
  • Newer
    5 years vs 11 years old
    Newer cameras often support more advanced features
  • More viewfinder magnification
    0.68x vs 0.57x
    Get a bigger view of the scene through the eye-level viewfinder
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    30.0 fps vs 5.0 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    30.0 fps vs 5.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    23 vs 7 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/32000 vs 1/4000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • 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

  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • 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
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

Buy From

Your purchases support this site

Buy the Nikon D3300

Your purchases support this site

Buy the Olympus E-M5 III

Review Excerpt

  • Excellent image quality with lots of fine detail; Very good high ISO performance; Good dynamic range; Good print quality; Deep buffers with JPEGs; 1080/60p video; Uncompressed HDMI output.

  • AF struggles in low-light; Contrast-detect AF in live view is slow; Buffer depth is shallow with RAW files; No AE bracketing; No built-in Wi-Fi.

  • Improved image quality; Very good dynamic range & high ISO performance for a modern MFT sensor; Very fast AF; Excellent image stabilization; 4K video recording; Weather-sealed build quality.

  • Below average battery life; Small size can be awkward with long, heavy lenses; One SD card slot.

The Competition

Compared to Sony A58

Nikon D3300
Sony A58
  • $367
  • APS-C
  • Lens selection
  • Fast startup
  • $598
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
Olympus E-M5 III
Sony A58
  • $924
  • 4/3
  • Tilt-swivel screen
  • Lens selection
  • $598
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Canon T5

Nikon D3300
Canon T5
  • $367
  • APS-C
  • Larger sensor
  • Less expensive
  • $399
  • APS-C
  • Has anti-aliasing filter
Olympus E-M5 III
Canon T5
  • $924
  • 4/3
  • Tilt-swivel screen
  • Focus peaking
  • $399
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Pentax K-S1

Nikon D3300
Pentax K-S1
  • $367
  • APS-C
  • In-camera panoramas
  • Higher effective ISO
  • $502
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
Olympus E-M5 III
Pentax K-S1
  • $924
  • 4/3
  • Tilt-swivel screen
  • Shoot 4K video
  • $502
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Panasonic G100

Nikon D3300
Panasonic G100
  • $367
  • APS-C
  • Less expensive
  • Larger sensor
  • $599
  • 4/3
  • Tilt-swivel screen
  • Focus peaking
Olympus E-M5 III
Panasonic G100
  • $924
  • 4/3
  • In-Camera Image Stabilization
  • High resolution composite
  • $599
  • 4/3
  • Less expensive
  • In-camera panoramas

Compared to Olympus E-M10 IV

Nikon D3300
Olympus E-M10 IV
  • $367
  • APS-C
  • Less expensive
  • Larger sensor
  • $649
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
Olympus E-M5 III
Olympus E-M10 IV
  • $924
  • 4/3
  • Tilt-swivel screen
  • High resolution composite
  • $649
  • 4/3
  • Less expensive
  • Longer video battery life
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