| General | |
| Manufacturer: | Ritmix |
| Model: | RBK-520 |
| Measurements | |
| Display | |
| Display type: | E-Ink Vizplex |
| Screen Size: | 6 |
| Screen Resolution (px): | 600 x 800 |
| Grayscale: | 16 |
| Built-in lights: | No |
| Supported formats | |
| Text: | CHM, DJVU, EPUB, FB2, LRC, MOBI, PDF, PalmDOC, RTF, TXT |
| Graphic: | BMP, GIF, JPEG, PNG, TIFF |
| Audio: | MP3 |
| Processor | |
| Processor Type: | FreeScale i.MX233 |
| Clock Frequency (MHz): | 454 |
| Memory | |
| Random access memory (RAM) (MB): | 64 |
| Read-only memory (ROM) (MB): | 2048 |
| Memory Cards: | microSD |
| Communications | |
| Multimedia | |
| Output of earphones: | 3.5 |
| Charging | |
| Capacity battery (MAh): | 1900 |
| Charging | |
| Additionally | |