Reasons to choose D5500
Released in 2015, D5500 has about 367 mm² of sensor area, 24.2 MP effective resolution, and a 420 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Nikon D5500
vs Pentax K-S1
VS
Sensor area
367 mm²
D5500367 mm²
K-S1- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The D5500 and K-S1 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
D5500MetricK-S1
24.2 MPEffective pixels20.12 MP
23.5 × 15.6Sensor23.5 × 15.6
3.89 µmPixel pitch4.27 µm
15.15 µm²Pixel area18.22 µm²
6.6 MP/cm²Pixel density5.49 MP/cm²
1.53Crop factor1.53
1,920 × 1,080Maximum video1,920 × 1,080
420 gWeight558 g
SD/SDHC/SDXCStorageSD/SDHC/SDXC
EN-EL14a / EN-EL14BatteryRechargeable Lithium-ion Battery D-LI109 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 D5500 and K-S1 have the same sensor area. The D5500 has the lighter body. The D5500 has the higher effective resolution. The D5500 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose K-S1
Released in 2014, K-S1 has about 367 mm² of sensor area, 20.12 MP effective resolution, and a 558 g body. Use these values to narrow the field, not as an overall image-quality score.