• APS-C 368.2mm2
  • 16.2 megapixels
  • ISO 100 - 6400
  • 1 inch 116.2mm2
  • 20.1 megapixels
  • 24.00mm - 70.00mm (35mm eq.)

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Differences

Nikon D5100 advantages over Sony RX100 IV

  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.79 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.50 vs 2.1 sec
    Faster startup lets you catch the moment
  • Higher effective ISO
    1,183 vs 562 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 660 vs 280 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Bigger JPEG buffer
    100 vs 40 shots
    Take more JPEG shots before waiting (burst mode)

Sony RX100 IV advantages over Nikon D5100

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Thinner
    41 mm vs 79 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/200 sec
    Reduce the effect of ambient light in flash shots
  • Newer
    9 years vs 14 years old
    Newer cameras often support more advanced features
  • More dots on screen
    1229k vs 922k dots
    Can mean greater resolution or a brighter screen
  • Less shutter lag
    0.16 vs 0.27 sec
    Focus and take a photo quickly (wide angle)
  • More viewfinder magnification
    0.59x vs 0.52x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    20.1 vs 16.2 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Faster JPEG shooting
    16.0 fps vs 3.9 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    8.6 fps vs 4.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    28 vs 13 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

  • Rear display
    Both provide
    Review photos on the back of the camera
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • 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

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Review Excerpt

  • Side-mounted tilt / swivel LCD screen; same sensor and processing as the Nikon D7000; good speed and battery life; in-camera HDR and filter effects; Full HD video capture with aperture control; audio levels control and external microphone jack.

  • AF-S lens mount doesn't offer autofocus with screw-drive lenses; popup flash isn't the greatest; no built-in wireless flash control; HDR function doesn't microalign source images.

  • Read our Nikon D5100 Full Review

  • Vastly improved burst speeds with deep buffer; Great performance with very fast autofocus; Very high resolution gives lots of detail in good light; High ISO noise levels much better than most pocket camera rivals; High-quality 4K video with uncompressed HDMI out; Super-fast High Frame Rate video; Same great pocket-friendly design.

  • Pricey for a compact camera; JPEGs can look over-processed at higher ISOs; Lens doesn't offer as much telephoto reach; Battery life not as good as predecessor; 24-70mm-equivalent lens can feel limiting.

  • Read our Sony RX100 IV Review

The Competition

Compared to Sony A55

Nikon D5100
Sony A55
  • $650
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $734
  • APS-C
  • In-Camera Image Stabilization
  • In-camera panoramas

Compare Nikon D5100 vs Sony A55

Sony RX100 IV
Sony A55
  • $898
  • 1 inch
  • Focus peaking
  • Shoot 4K video
  • $734
  • APS-C
  • Less expensive
  • Larger sensor

Compare Sony RX100 IV vs Sony A55

Compared to Sony A33

Nikon D5100
Sony A33
  • $650
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $540
  • APS-C
  • In-Camera Image Stabilization
  • In-camera panoramas

Compare Nikon D5100 vs Sony A33

Sony RX100 IV
Sony A33
  • $898
  • 1 inch
  • Focus peaking
  • Shoot 4K video
  • $540
  • APS-C
  • Less expensive
  • Larger sensor

Compare Sony RX100 IV vs Sony A33

Compared to Sony A57

Nikon D5100
Sony A57
  • $650
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $800
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization

Compare Nikon D5100 vs Sony A57

Sony RX100 IV
Sony A57
  • $898
  • 1 inch
  • Shoot 4K video
  • Built-in Wi-Fi
  • $800
  • APS-C
  • Less expensive
  • Larger sensor

Compare Sony RX100 IV vs Sony A57

Compared to Sony RX100 III

Nikon D5100
Sony RX100 III
  • $650
  • APS-C
  • Larger sensor
  • Less expensive
  • $748
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization

Compare Nikon D5100 vs Sony RX100 III

Sony RX100 IV
Sony RX100 III
  • $898
  • 1 inch
  • Slower slow-motion
  • Shoot 4K video
  • $748
  • 1 inch

Compare Sony RX100 IV vs Sony RX100 III

Compared to Sony RX100 V

Nikon D5100
Sony RX100 V
  • $650
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $998
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization

Compare Nikon D5100 vs Sony RX100 V

Sony RX100 IV
Sony RX100 V
  • $898
  • 1 inch
  • Longer stills battery life
  • $998
  • 1 inch
  • On-sensor phase detect
  • Faster JPEG shooting

Compare Sony RX100 IV vs Sony RX100 V

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