- 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 355.7mm2
- 14.2 megapixels
- ISO 100 - 3200
- Go in depth with our full Nikon D3100 Review.
- See real-world photos taken with the D3100.
- Succeeded by the Pentax K-r
- Compare K-x vs K-r
- Succeeded by the Nikon D3200
- Compare D3100 vs D3200
- Compare PENTAX K-R vs NIKON D3200