Reasons to choose Optio S55
Released in 2005, Optio S55 has about 25 mm² of sensor area, 5 MP effective resolution, and a 135 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Pentax Optio S55
vs Pentax Optio X
VS
Sensor area
25 mm²
Optio S5525 mm²
Optio X- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The Optio S55 and Optio X have the same sensor area. Compare pixel density, sensor architecture, and release generation to understand likely image-quality differences.
These cameras were released 1 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
Optio S55MetricOptio X
5 MPEffective pixels5 MP
5.75 × 4.32Sensor5.75 × 4.32
2.23 µmPixel pitch2.23 µm
4.97 µm²Pixel area4.97 µm²
20.13 MP/cm²Pixel density20.13 MP/cm²
6.02Crop factor6.02
—Maximum video—
135 gWeight125 g
Secure DigitalStorageInternal storage
AA (2) batteries (NiMH recommended)BatteryLithium-Ion rechargeable Li-ion battery
Amber marks the value that is generally preferable in this comparison context. It is not an overall camera score.
How to choose between these cameras
The Optio S55 and Optio X have the same sensor area. The Optio X has the lighter body. The Optio S55 and Optio X have the same effective resolution. The Optio S55 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose Optio X
Released in 2004, Optio X has about 25 mm² of sensor area, 5 MP effective resolution, and a 125 g body. Use these values to narrow the field, not as an overall image-quality score.