| General | |
| Manufacturer: | ONYX |
| Model: | BOOX M90 |
| Measurements | |
| Dimensions (mm): (width x height x thickness) |
179.4 x 242.9 x 12.3 |
| Weight (g): | 520 |
| Display | |
| Display type: | E-Ink Pearl |
| Screen Size: | 9.7 |
| Screen Resolution (px): | 825 x 1200 |
| Grayscale: | 16 |
| Touchscreen: | Yes |
| Built-in lights: | No |
| Supported formats | |
| Text: | CHM, DJVU, DOC, DOCX, EPUB, FB2, FB2.ZIP, HTML, MOBI, PDB, PDF, PPT, PPTX, RTF, RTF.ZIP, TXT, TXT.ZIP, XLS, XLSX |
| Graphic: | BMP, GIF, JPEG, PNG, TIFF |
| Audio: | MP3 |
| Processor | |
| Processor Type: | FreeScale i.MX31 |
| Clock Frequency (MHz): | 532 |
| Memory | |
| Random access memory (RAM) (MB): | 128 |
| Read-only memory (ROM) (MB): | 1024 |
| Memory Cards: | MMC, SD, SDHC |
| Communications | |
| Wi-Fi: | Yes |
| Multimedia | |
| Speaker: | mono |
| Output of earphones: | 3.5 |
| Charging | |
| Capacity battery (MAh): | 1600 |
| Charging | |
| Charging from USB: | Yes |
| Charging from the mains: | Yes |
| Additionally | |