| General | |
| Manufacturer: | Ritmix |
| Model: | RBK-650 |
| Measurements | |
| Dimensions (mm): (width x height x thickness) |
126.5 x 161 x 9 |
| Weight (g): | 225 |
| Display | |
| Display type: | E-Ink Pearl |
| Screen Size: | 6 |
| Screen Resolution (px): | 600 x 800 |
| Grayscale: | 16 |
| Touchscreen: | Yes |
| Built-in lights: | No |
| Supported formats | |
| Text: | EPUB, FB2, HTML, LRC, MOBI, PDB, PDF, RTF, TXT |
| Graphic: | BMP, JPEG |
| Audio: | AAC, FLAC, MP3, OGG, WAV, WMA |
| Other: | ZIP |
| Processor | |
| Processor Type: | RockChip RK2818 |
| Clock Frequency (MHz): | 640 |
| Memory | |
| Random access memory (RAM) (MB): | 512 |
| Read-only memory (ROM) (MB): | 4096 |
| Memory Cards: | microSD, microSDHC |
| Communications | |
| Wi-Fi: | Yes |
| Multimedia | |
| Speaker: | mono |
| Output of earphones: | 3.5 |
| Charging | |
| Capacity battery (MAh): | 1800 |
| Running time (number of displayed pages) |
Up to 8000 |
| Charging | |
| Charging from USB: | Yes |
| Charging from the mains: | Yes |
| Additionally | |
| Features: | according to users «resource lasts for about 500-700 pages if only to read and turn off WIFI, and if you listen to music and even less» |