• 1/2.3 inch 28.1mm2
  • 16.1 megapixels
  • 23.00mm - 855.00mm (35mm eq.)
  • APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 25,600

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Differences

Nikon L840 advantages over Nikon D3400

  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Faster JPEG shooting
    7.4 fps vs 5.1 fps
    Faster JPEG shooting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

Nikon D3400 advantages over Nikon L840

  • Larger sensor
    APS-C vs 1/2.3 inch
    More sensor area. Bigger is (generally) better.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Bigger pixels
    ~ 3.92 vs 1.34 microns
    Better low-light and dynamic range (all else equal)
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Longer stills battery life
    More info 1200 vs 740 shots
    Capture more photos
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More pixels
    24.2 vs 16.1 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Longer exposure
    30 vs 4 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Bigger JPEG buffer
    100 vs 7 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/4000 vs 1/1500 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video

Common Weaknesses

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • 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 L840

Your purchases support this site

Buy the Nikon D3400

Review Excerpt

  • Compact DSLR camera body; Excellent image quality; Reliable single-shot autofocus; Good continuous JPEG shooting performance; New kit lens has improved AF; Great value at current prices.

  • SnapBridge is slow and limited; Poor continuous autofocus; No built-in Wi-Fi; Mediocre video features.

The Competition

Compared to Canon T6i

Nikon L840
Canon T6i
  • $300
  • 1/2.3 inch
  • In-Camera Image Stabilization
  • In-camera panoramas
  • $549
  • APS-C
  • Tilt-swivel screen
  • Larger sensor
Nikon D3400
Canon T6i
  • $497
  • APS-C
  • Less expensive
  • Larger sensor
  • $549
  • APS-C
  • Tilt-swivel screen
  • Touchscreen

Compared to Nikon L830

Nikon L840
Nikon L830
  • $300
  • 1/2.3 inch
  • In-camera panoramas
  • Built-in Wi-Fi
  • $400
  • 1/2.3 inch
  • Slower slow-motion
  • Shoots 60p video
Nikon D3400
Nikon L830
  • $497
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
  • $400
  • 1/2.3 inch
  • In-Camera Image Stabilization
  • Tiltable Screen

Compared to Nikon P530

Nikon L840
Nikon P530
  • $300
  • 1/2.3 inch
  • In-camera panoramas
  • Tiltable Screen
  • $279
  • 1/2.3 inch
  • Eye-level viewfinder
  • More telephoto lens reach
Nikon D3400
Nikon P530
  • $497
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $279
  • 1/2.3 inch
  • Less expensive
  • In-Camera Image Stabilization

Compared to Nikon D5500

Nikon L840
Nikon D5500
  • $300
  • 1/2.3 inch
  • In-Camera Image Stabilization
  • In-camera panoramas
  • $597
  • APS-C
  • Larger sensor
  • Tilt-swivel screen
Nikon D3400
Nikon D5500
  • $497
  • APS-C
  • Less expensive
  • Built-in Bluetooth
  • $597
  • APS-C
  • Tilt-swivel screen
  • Touchscreen

Compared to Nikon B500

Nikon L840
Nikon B500
  • $300
  • 1/2.3 inch
  • Longer exposure
  • $322
  • 1/2.3 inch
  • Built-in Bluetooth
Nikon D3400
Nikon B500
  • $497
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
  • $322
  • 1/2.3 inch
  • Less expensive
  • In-Camera Image Stabilization
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