- APS-C 369.7mm2
- 12.4 megapixels
- ISO 200 - 6400
- Go in depth with our full Pentax K-x Review.
- See real-world photos taken with the K-x.
- APS-C 368.2mm2
- 16.2 megapixels
- ISO 100 - 6400
- Go in depth with our full Nikon D5100 Review.
- See real-world photos taken with the D5100.
- Succeeded by the Pentax K-r
- Compare K-x vs K-r
- Succeeded by the Nikon D5200
- Compare D5100 vs D5200
- Compare PENTAX K-R vs NIKON D5200