 | Nikon Coolpix S640 | Pentax K-x |
|---|---|---|
| Resolution | 12.2 Megapixel | 12.9 Megapixel |
| Sensor size | 1/2.33-inch | 23.6x15.8mm |
| Sensor type | CCD | CMOS |
| Digital zoom | Yes | No |
| Built-in flash | Yes | Yes |
| Video out | Yes | Yes |
| Video recording | Yes | Yes |
| File formats | JPEG | JPEG, RAW, RAW - JPEG |
| USB port | USB 2.0 Hi-Speed | USB 2.0 Hi-Speed |
| Firewire port | No | No |
| White balance | Auto, Cloudy, Daylight, Fluorescent, Incandescent, Manual, Sunny | Auto, Cloudy, Daylight, Flash, Fluorescent, Manual, Shade, Tungsten |
| Self-timer | Yes | Yes |
| Bluetooth | No | No |
| Weight | 110 g | 515 g |
| Dimensions | 91x55x20.5 mm | 122.5x91.5x67 mm |
| Storage | SDHC, Secure Digital | SDHC, Secure Digital |
| Battery | Li-Ion | 4x AA |
| Maximum resolution | 4000x3000 pixels | 4288x2428 pixels |
| Minimum resolution | 640x480 pixels | 1728x1152 pixels |
| Optical zoom | Yes | No |
| Auto focus | Yes | Yes |
| Manual focus | No | Yes |
| Flash modes | anti red-eye, auto, fill in, off, slow flash | anti red-eye, auto, fill in, off, slow flash |
| Aperture priority | No | Yes |
| Shutter priority | No | Yes |
| External flash | No | Yes |
| Exposure compensation | -2EV - +2EV with 1/3EV steps | -3EV - +3EV with 1/2 or 1/3EV steps |
| Video sound | Yes | Yes |
| Maximum video resolution | 640x480 pixels | 1280x720 pixels |
| Minimum video resolution | 320x240 pixels | 320x240 pixels |
| Frames per second (fps) | 30 | 24 |
| Voice recording | Yes | Yes |
| Optical viewfinder | No | Yes |
| Electronic viewfinder | No | No |
| LCD size | 2.7-inch | 2.7-inch |
| LCD monitor | Yes | Yes |
| Metering modes | 3D Matrix metering II | Center weighted, Multi-segment, Spot |
| ISO ratings (light sensitivity) | auto, 100, 200, 400, 800, 1600, 3200, 6400 | auto, 100 - 12800 |
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