• 1 inch 116.2mm2
  • 20.2 megapixels
  • 24.00mm - 70.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 16.0 megapixels
  • 21.00mm - 105.00mm (35mm eq.)

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Differences

Sony RX100 III 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.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • 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
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • 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
    48 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 III

  • Less expensive
    $449 vs $648
    Save money for lenses or accessories
  • Waterproof
    Yes vs No
    Take photos underwater without destroying your camera!
  • Slower slow-motion
    240 fps vs 120 fps
    Supports slower slow-mo
  • More telephoto lens reach
    105 mm vs 70 mm
    Capture objects farther away
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Thinner
    27 mm vs 41 mm
    Thinner
  • Newer
    3 years vs 4 years old
    Newer cameras often support more advanced features
  • Wider angle lens
    21 mm vs 24 mm
    Capture more of the scene
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos

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
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Slow-motion videos
    Both provide
    Shoot slow-motion videos

Common Weaknesses

  • 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 Bluetooth
    Neither provide
    Always-on wireless connectivity
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • 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

  • Pocket-friendly design; Popup electronic viewfinder; Bright lens across the zoom range; 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; Wi-Fi wireless networking

  • Feels a little unbalanced without an accessory grip; Not as much telephoto reach as its siblings; Noise processing is heavier-handed than in earlier models; Quite pricey for a fixed-lens camera

The Competition

Compared to Sony RX100

Sony RX100 III
Sony RX100
  • $648
  • 1 inch
  • Eye-level viewfinder
  • Tiltable Screen
  • $392
  • 1 inch
  • Less expensive
  • More telephoto lens reach
Olympus TG-870
Sony RX100
  • $449
  • 1/2.3 inch
  • Waterproof
  • Tiltable Screen
  • $392
  • 1 inch
  • Focus peaking
  • Larger sensor

Compared to Sony RX100 II

Sony RX100 III
Sony RX100 II
  • $648
  • 1 inch
  • Eye-level viewfinder
  • Fast startup
  • $584
  • 1 inch
  • Less expensive
  • More telephoto lens reach
Olympus TG-870
Sony RX100 II
  • $449
  • 1/2.3 inch
  • Less expensive
  • Waterproof
  • $584
  • 1 inch
  • Focus peaking
  • Larger sensor

Compared to Canon G7X

Sony RX100 III
Canon G7X
  • $648
  • 1 inch
  • Eye-level viewfinder
  • In-camera panoramas
  • $599
  • 1 inch
  • Less expensive
  • Touchscreen
Olympus TG-870
Canon G7X
  • $449
  • 1/2.3 inch
  • Less expensive
  • Waterproof
  • $599
  • 1 inch
  • Focus peaking
  • Larger sensor

Compared to Panasonic LX100

Sony RX100 III
Panasonic LX100
  • $648
  • 1 inch
  • Tiltable Screen
  • Internal flash
  • $598
  • 4/3
  • Larger sensor
  • Bigger pixels
Olympus TG-870
Panasonic LX100
  • $449
  • 1/2.3 inch
  • Less expensive
  • Waterproof
  • $598
  • 4/3
  • Focus peaking
  • Larger sensor

Compared to Olympus TG-850

Sony RX100 III
Olympus TG-850
  • $648
  • 1 inch
  • Focus peaking
  • Larger sensor
  • $249
  • 1/2.3 inch
  • Less expensive
  • Waterproof
Olympus TG-870
Olympus TG-850
  • $449
  • 1/2.3 inch
  • Built-in Wi-Fi
  • Built-in GPS
  • $249
  • 1/2.3 inch
  • Less expensive
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