• 1 inch 116.2mm2
  • 20.2 megapixels
  • 28.00mm - 100.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 16.0 megapixels
  • 21.00mm - 105.00mm (35mm eq.)

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Differences

Sony RX100 advantages over Olympus TG-870

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    1 inch vs 1/2.3 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 2.41 vs 1.34 microns
    Better low-light and dynamic range (all else equal)
  • Larger lens aperture
    f/1.8 vs f/3.5
    Take photos in low-light or isolate your subject
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • More dots on screen
    1229k vs 920k dots
    Can mean greater resolution or a brighter screen
  • More pixels
    20.2 vs 16.0 megapixels
    Higher resolution photos
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • 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
  • Faster JPEG shooting
    10.0 fps vs 7.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    13 vs 7 shots
    Take more JPEG shots before waiting (burst mode)
  • Higher extended ISO
    25600 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Olympus TG-870 advantages over Sony RX100

  • Waterproof
    Yes vs No
    Take photos underwater without destroying your camera!
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Thinner
    27 mm vs 35 mm
    Thinner
  • Newer
    9 years vs 12 years old
    Newer cameras often support more advanced features
  • Wider angle lens
    21 mm vs 28 mm
    Capture more of the scene
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

Similarities

Common Strengths

  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • In-camera panoramas
    Both provide
    Stitches multiple shots into a panoramic photo
  • 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

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Neither provide
    You'll be able to frame photos even when the sun is out
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • 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
  • 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
  • Hot shoe
    Neither provide
    Off-camera flashes open new possibilities
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

Buy From

Your purchases support this site

Buy the Olympus TG-870

Review Excerpt

  • Excellent high-ISO performance for such a compact model; Smart controls; Small body; Bright lens; 10fps full-res burst mode; Very fast shutter response; Excellent LCD.

  • Lens flare at night; Poor rendering of yellows; Slow flash recycling; Soft corners wide open; Continuous AF mode slow to lock.

The Competition

Compared to Sony RX100 II

Sony RX100
Sony RX100 II
  • $1095
  • 1 inch
  • Faster RAW shooting
  • $598
  • 1 inch
  • Tiltable Screen
  • Built-in Wi-Fi
Olympus TG-870
Sony RX100 II
  • $279
  • 1/2.3 inch
  • Less expensive
  • Waterproof
  • $598
  • 1 inch
  • Focus peaking
  • Larger sensor

Compared to Sony RX100 III

Sony RX100
Sony RX100 III
  • $1095
  • 1 inch
  • More telephoto lens reach
  • Faster RAW shooting
  • $748
  • 1 inch
  • Eye-level viewfinder
  • Tiltable Screen
Olympus TG-870
Sony RX100 III
  • $279
  • 1/2.3 inch
  • Less expensive
  • Waterproof
  • $748
  • 1 inch
  • Focus peaking
  • Larger sensor

Compared to Olympus TG-850

Sony RX100
Olympus TG-850
  • $1095
  • 1 inch
  • Focus peaking
  • Larger sensor
  • $249
  • 1/2.3 inch
  • Less expensive
  • Waterproof
Olympus TG-870
Olympus TG-850
  • $279
  • 1/2.3 inch
  • Built-in Wi-Fi
  • Built-in GPS
  • $249
  • 1/2.3 inch

Compared to Canon G7X

Sony RX100
Canon G7X
  • $1095
  • 1 inch
  • In-camera panoramas
  • Longer stills battery life
  • $1239
  • 1 inch
  • Touchscreen
  • Tiltable Screen
Olympus TG-870
Canon G7X
  • $279
  • 1/2.3 inch
  • Waterproof
  • In-camera panoramas
  • $1239
  • 1 inch
  • Focus peaking
  • Larger sensor

Compared to Olympus TG-860

Sony RX100
Olympus TG-860
  • $1095
  • 1 inch
  • Focus peaking
  • Larger sensor
  • $230
  • 1/2.3 inch
  • Less expensive
  • Waterproof
Olympus TG-870
Olympus TG-860
  • $279
  • 1/2.3 inch
  • More dots on screen
  • $230
  • 1/2.3 inch
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