Generally, some of the advantages of the Casio EX-Z55 compared to other compact competitors include: it has a significantly wider aperture (f/2.6 vs f/3.9), has a significantly wider wide angle lens (35 mm vs 38 mm), has a viewfinder (tunnel vs none) and has a faster max shutter speed (1/2000 of a second vs 1/1250 of a second).
However, on average it has a slightly smaller screen (2.5" vs 3"), takes significantly lower resolution photos (4.9 MP vs 9.8 MP), slightly lower maximum light sensitivity (400 ISO vs 3,200 ISO), is older (august 2004 vs november 2009) and is thicker (0.9" vs 0.8").
Casio Exilim EX-G1
5 years newer
Significant advantages of the EX-G1 (vs the EX-Z55)
- Larger screen: 3" vs 2.5"
- Significantly higher true resolution: 9.8 MP vs 4.9 MP
- Waterproof
Significant disadvantages of the EX-G1 (vs the EX-Z55)
- Significantly narrower aperture: f/3.9 vs f/2.6
- Significantly worse wide angle: 38 mm vs 35 mm
- No viewfinder: None vs Tunnel
common strengths of the EX-G1 and EX-Z55
- Each has a built-in flash
- Fairly small: Compact (104×64×20 mm) vs Super compact (87×57×23 mm)
- Very thin: 0.8" vs 0.9"