• 1/2.3 inch 28.1mm2
  • 16.0 megapixels
  • 25.00mm - 100.00mm (35mm eq.)
  • 35mm 855.6mm2
  • 24.3 megapixels
  • ISO 100 - 25,600

Buy From

Differences

Olympus TG-3 advantages over Sony A7 II

  • Waterproof
    Yes vs No
    Take photos underwater without destroying your camera!
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    31 mm vs 59 mm
    Thinner
  • Bigger JPEG buffer
    100 vs 52 shots
    Take more JPEG shots before waiting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

Sony A7 II advantages over Olympus TG-3

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    35mm 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
    ~ 5.97 vs 1.34 microns
    Better low-light and dynamic range (all else equal)
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Higher-res screen
    307k vs 154k pixels
    More detail on the screen lets you judge focus and composition
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More pixels
    24.3 vs 16.0 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • 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 shutter
    1/8000 vs 1/2000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    51200 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
  • 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
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • 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
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • Dual card slots
    Neither provide
    Gives you more storage flexibility

User reviews

Buy From

Review Excerpt

  • Excellent 5-axis sensor-shift image stabilization; Sensor-shift IS brings stabilization to nearly any lens; Much-improved ergonomics and top-deck control layout; 'Mark II' maintains same impressive image quality, dynamic range and high ISO performance; XAVC S 50Mbps video format; Faster start-up time; Hybrid AF performs well with good continuous AF.

  • (Similar to A7): Loud shutter (but electronic first-curtain helps); Battery life could be better; Low-light AF still not as good as most DSLRs; High ISO JPEGs look over-processed; Slow buffer clearing; Limited selection of native Sony FE lenses (but it's getting better).

The Competition

Compared to Pentax WG-3

Olympus TG-3
Pentax WG-3
  • $349
  • 1/2.3 inch
  • In-camera panoramas
  • Built-in Wi-Fi
  • $289
  • 1/2.3 inch
  • Less expensive
  • Manual focus
Sony A7 II
Pentax WG-3
  • $1148
  • 35mm
  • Focus peaking
  • Larger sensor
  • $289
  • 1/2.3 inch
  • Waterproof
  • Internal flash

Compared to Sony A7

Olympus TG-3
Sony A7
  • $349
  • 1/2.3 inch
  • Waterproof
  • In-Camera Image Stabilization
  • $748
  • 35mm
  • Focus peaking
  • Larger sensor
Sony A7 II
Sony A7
  • $1148
  • 35mm
  • In-Camera Image Stabilization
  • $748
  • 35mm
  • Less expensive

Compared to Ricoh WG-5 GPS

Olympus TG-3
Ricoh WG-5 GPS
  • $349
  • 1/2.3 inch
  • Slower slow-motion
  • Built-in Wi-Fi
  • $297
  • 1/2.3 inch
  • Manual focus
  • Shoots 60p video
Sony A7 II
Ricoh WG-5 GPS
  • $1148
  • 35mm
  • Focus peaking
  • Larger sensor
  • $297
  • 1/2.3 inch
  • Waterproof
  • Built-in GPS

Compared to Olympus TG-4

Olympus TG-3
Olympus TG-4
  • $349
  • 1/2.3 inch
  • $379
  • 1/2.3 inch
  • RAW file ability
  • Manual focus
Sony A7 II
Olympus TG-4
  • $1148
  • 35mm
  • Focus peaking
  • Larger sensor
  • $379
  • 1/2.3 inch
  • Less expensive
  • Waterproof

Compared to Sony A7 III

Olympus TG-3
Sony A7 III
  • $349
  • 1/2.3 inch
  • Waterproof
  • Slower slow-motion
  • $1898
  • 35mm
  • Focus peaking
  • Larger sensor
Sony A7 II
Sony A7 III
  • $1148
  • 35mm
  • Less expensive
  • In-camera panoramas
  • $1898
  • 35mm
  • Shoot 4K video
  • Touchscreen
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