| General | |
| Manufacturer: | SIBRARY |
| Model: | G51 |
| Measurements | |
| Dimensions (mm): (width x height x thickness) |
102x148x8 |
| Weight (g): | 150 |
| Display | |
| Display type: | E-Ink Vizplex |
| Screen Size: | 5 |
| Screen Resolution (px): | 600 x 800 |
| Grayscale: | 16 |
| Built-in lights: | No |
| Supported formats | |
| Text: | CHM, EPUB, FB2, PDF, PalmDOC, RTF, TXT |
| Graphic: | BMP, GIF, JPEG, PNG, TIFF |
| Audio: | MP3, OGG, WAV, WMA |
| Processor | |
| Processor Type: | Samsung S3C2416 |
| Clock Frequency (MHz): | 400 |
| Memory | |
| Random access memory (RAM) (MB): | 128 |
| Read-only memory (ROM) (MB): | 256 |
| Memory Cards: | microSD, microSDHC |
| Communications | |
| Multimedia | |
| Output of earphones: | 2.5 |
| Other: | FM-radio, G-Sensor |
| Charging | |
| Capacity battery (MAh): | 1100 |
| Running time (number of displayed pages) |
14000 |
| Charging | |
| Charging from USB: | Yes |
| Charging from the mains: | Yes |
| Additionally | |