The Nikon Coolpix S51 is mostly gets compared to other compacts. The Nikon Coolpix S51's top rivals come from Canon (such as the PowerShot S90)

compared toCompact competitors

Generally, some of the advantages of the Nikon S51 compared to other compact competitors include: it is much smaller (super compact (93×59×21 mm) vs compact (100×58×31 mm)), is thinner (0.8" vs 1.2"), is slightly lighter (175 g vs 198 g) and has a faster max shutter speed (1/2000 of a second vs 1/1600 of a second).

However, on average it has a significantly narrower aperture (f/3.3 vs f/2), has a much narrower wide angle lens (38 mm vs 28 mm), has a slightly lower resolution screen (230k dots vs 461k dots), slightly lower maximum light sensitivity (1,600 ISO vs 3,200 ISO) and is older (august 2007 vs august 2009).

Canon PowerShot S90

Canon PowerShot S90
2 years newer
$479

Significant advantages of the S90 (vs the S51)

  • Much better wide angle: 28 mm vs 38 mm
  • Significantly wider aperture: f/2 vs f/3.3

Significant disadvantages of the S90 (vs the S51)

  • Much larger: Compact (100×58×31 mm) vs Super compact (93×59×21 mm)
  • Significantly thicker: 1.2" vs 0.8"
  • Slower max shutter speed: 1/1600 of a second vs 1/2000 of a second

common strengths of the S90 and S51

  • Very small: Compact (100×58×31 mm) vs Super compact (93×59×21 mm)
  • Good image stabilization:
    1. Lens
    vs
    1. Lens
  • Thin: 1.2" vs 0.8"