The Pentax Optio W20 is mostly gets compared to other waterproofs and compacts. The Pentax Optio W20's top rivals come from Panasonic (such as the Lumix TS5) and Pentax (such as the Optio 555)

Competitor classes

compared toWaterproof competitors

Generally, some of the advantages of the Pentax W20 compared to other waterproof competitors include: it is slightly smaller (compact (107×55×23 mm) vs compact (110×64×29 mm)), is thinner (0.9" vs 1.1"), is slightly lighter (150 g vs 214 g) and has a faster max shutter speed (1/2000 of a second vs 1/1300 of a second).

However, on average it has a much narrower wide angle lens (38 mm vs 28 mm), has a slightly smaller screen (2.5" vs 3"), has a slightly lower resolution screen (115k dots vs 460k dots), doesn't have image stabilization (none vs lens) and takes slightly lower resolution photos (7.1 MP vs 9.6 MP).

Panasonic Lumix TS5

Panasonic Lumix TS5
6 years newer
$509

Significant advantages of the TS5 (vs the W20)

  • None found

Significant disadvantages of the TS5 (vs the W20)

  • None found

common strengths of the TS5 and W20

  • None found

compared toCompact competitors

Generally, some of the advantages of the Pentax W20 compared to other compact competitors include: it has a much larger screen (2.5" vs 1.5"), is significantly smaller (compact (107×55×23 mm) vs compact (100×59×40 mm)), takes slightly higher resolution photos (7.1 MP vs 5 MP), is newer (august 2006 vs september 2003) and is thinner (0.9" vs 1.6").

However, on average it has a slightly narrower aperture (f/3.3 vs f/2.8), doesn't have a viewfinder (none vs tunnel) and slightly shorter exposures (4 seconds vs 15 seconds).

Pentax Optio 555

Pentax Optio 555
2 years older

Significant advantages of the Optio 555 (vs the W20)

  • Has a viewfinder: Tunnel vs None

Significant disadvantages of the Optio 555 (vs the W20)

  • Much smaller screen: 1.5" vs 2.5"
  • Significantly larger: Compact (100×59×40 mm) vs Compact (107×55×23 mm)
  • Much thicker: 1.6" vs 0.9"

common strengths of the Optio 555 and W20

  • Each has a built-in flash