Updated (February, 2012): Compare the Canon PowerShot D20 vs Olympus TG-820 iHS

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Reasons to buy the Olympus Tough TG-810

Screen resolution
High resolution screen
920k dots
GPS
Built-in GPS
Great for travel
 

Reasons to buy the Canon PowerShot D20

High-speed framerate
High speed movies
240 fps
Supports 24p
24p movies
For that film look
Sensor type
CMOS Sensor
Better in low light
Panorama
In-camera panoramas
Stitches together multiple photos into a panorama
 
Differences | Recommendations | Cast your vote | Similarities | Competitors | Appearance | Discussion

differences

Advantages of the Canon D20

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Supports 24p Supports 24p Yes vs No
Help
Get that real film feel
Movie format Higher resolution movies 1080p @ 24fps vs 720p @ 30fps
Help
Shoots higher resolution Full HD (1080p) video but at a lower frame rate
High-speed framerate Records high-speed movies 240 fps vs None
Help
Capture events too fast for the naked eye and play them back in super-slow motion
Panorama Can create panoramas in-camera Yes vs No
Help
Stitches together multiple photos for a wide perspective
Sensor type Has a CMOS-family sensor CMOS vs CCD
Help
CMOS-family sensors often produce better quality images
Image stabilization Better image stabilization Lens vs Digital, Sensor shift
Help
Less risk of blur
Macro focus Better macro capability 1 cm vs 3 cm
Help
Focus on subjects 3x closer to the lens
Light sensitivity Better maximum light sensitivity 3,200 ISO vs 1,600 ISO
Help
The D20's maximum light sensitivity is 1 f-stop better
Lowest price Cheaper $229.00 vs $299.00
Help
The best price we've seen is $70 cheaper (more than 20% less)
Longest exposure Longer exposures 15s vs 4s
Help
Around 4x longer exposures
Canon PowerShot D20 Learn more about
the Canon D20

Advantages of the Olympus TG-810

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Screen resolution Significantly higher resolution screen 920k dots vs 461k dots
Help
Around 2x higher resolution screen
Size Smaller 100x65x26 mm vs 112x71x28 mm
Help
More than 20% smaller
Thickness Slightly thinner 1" vs 1.1"
Help
Around 10% thinner
Weight Slightly lighter 221 g vs 228 g
Help
Almost the same
Olympus Tough TG-810 Learn more about
the Olympus TG-810
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recommendations

Which camera do we recommend? Relative to the best recent waterproof cameras, and ignoring price

Canon PowerShot D20 Canon PowerShot D20 73
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        75 Olympus Tough TG-810 Olympus Tough TG-810
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              similarities

              Compared to recent compacts

              Common Strengths Common Weaknesses
              GPS Built-in GPS Help
              Great for travel
              Waterproof Waterproof Help
              Great at the beach
              Weight Heavy Help
              D20:228 g
              TG-810:221 g
              Supports RAW No RAW support Help
              Less editing fidelity
              HDR Neither has in-camera HDR Help
              You could do HDR manually
              Aperture Very narrow widest aperture size Help
              f/3.9
              Wide angle Poor wide angle Help
              28 mm
              Zoom Poor zoom Help
              5x

              Compared to recent waterproof cameras

              Common Strengths Common Weaknesses
              Built-in flash Each has a built-in flash Help
              Usually standard
              Screen size Larger than average screens Help
              3.0"
              Image stabilization Good image stabilization Help
              D20:Lens
              TG-810:Digital, Sensor shift
              Thickness Thin Help
              D20:1.1"
              TG-810:1"
              External mic jack Neither has an external mic jack Help
              Limited to the in-camera mic

              competitors

              Shared Competitors

              Advantages

              Disadvantages

              Nikon Coolpix AW100

              Nikon Coolpix AW100

              Waterproof

              $250 - $297

              HDR Has in-camera HDR
              Weight Is slightly lighter
              Nikon Coolpix AW110

              Nikon Coolpix AW110

              Waterproof

              $213

              Continuous shooting Shoots faster continuously
              Screen type Has an OLED screen
              Nikon Coolpix AW120

              Nikon Coolpix AW120

              Waterproof

              $297 - $543

              Aperture Has a significantly wider aperture
              Wide angle Has a slightly wider wide angle lens
              Sony Cyber-shot DSC-TX30

              Sony Cyber-shot DSC-TX30

              Waterproof

              $198 - $214

              Aperture Has a slightly wider aperture
              Screen size Has a slightly larger screen
              GPS Doesn't have a built-in GPS
              Olympus Stylus Tough TG-2 iHS

              Olympus Stylus Tough TG-2 iHS

              Waterproof

              $448

              Aperture Has a much wider aperture
              Wide angle Has a slightly wider wide angle lens
              Lowest price Is slightly more expensive
              Size Is slightly larger
              Olympus TG-820 iHS

              Olympus TG-820

              Waterproof

              Size Is slightly smaller
              Light sensitivity Slightly higher maximum light sensitivity
              GPS Doesn't have a built-in GPS
              Battery life Has a slightly shorter battery life
              Olympus Tough TG-850 iHS

              Olympus Tough TG-850 iHS

              Waterproof

              $249

              Aperture Has a slightly wider aperture
              Wide angle Has a significantly wider wide angle lens
              GPS Doesn't have a built-in GPS
              Size Is slightly larger

              Canon PowerShot D20 Competitors

              Advantages

              Disadvantages

              Canon PowerShot D30

              Canon PowerShot D30

              Waterproof

              $299 - $330

              Size Smaller
              Battery life Slightly longer battery life
              Panorama Lacks in-camera panoramic stitching
              Lowest price More expensive
              Canon PowerShot D10

              Canon PowerShot D10

              Waterproof

              $259 - $480

              Aperture Significantly wider aperture
              Weight Lighter
              Size Much larger
              Wide angle Significantly worse wide angle
              Fujifilm FinePix XP60

              Fujifilm FinePix XP60

              Waterproof

              $169 - $180

              3D Takes 3D photos
              HDR Has in-camera HDR
              Supports 24p No 24p support
              Macro focus Much worse macro capability
              GoPro HERO3 Black Edition

              GoPro HERO3 Black Edition

              Waterproof

              Movie format Higher resolution movies
              Wide angle Much better wide angle
              Built-in flash No built-in flash
              Image stabilization No image stabilization

              Olympus Tough TG-810 Competitors

              Advantages

              Disadvantages

              Olympus Stylus Tough 8010

              Olympus Stylus Tough 8010

              Waterproof

              $199

              Size Smaller
              Macro focus Better macro capability
              Screen resolution Much lower resolution screen
              Screen size Smaller screen
              Olympus TG-610

              Olympus TG-610

              Waterproof

              $249

              Continuous shooting Shoots faster
              Weight Lighter
              GPS No built-in GPS
              Panasonic Lumix DMC-TS3

              Panasonic Lumix DMC-TS3

              Waterproof

              $470

              3D Takes 3D photos
              Aperture Wider aperture
              Screen resolution Much lower resolution screen
              Screen size Smaller screen

              appearance

              Canon PowerShot D20 Olympus Tough TG-810
              Canon PowerShot D20 Olympus Tough TG-810
              Canon PowerShot D20 Olympus Tough TG-810

              discussion

              Canon PowerShot D20
              PowerShot D20
              Canon

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              Olympus Tough TG-810
              Tough TG-810
              Olympus

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