| General | |
| Manufacturer: | Ritmix |
| Model: | RMD-520 |
| Other names: | Yuan Dao Window N50, N50DT, N50GT, N50GT-A |
| Year: | 2011 |
| Operating system: | Android 2.3, Android 4.0 |
| Capacity battery (MAh): | 3000 |
| Measurements | |
| Dimensions (mm): (width x height x thickness) |
136 x 90 13.7 |
| Weight (g): | 225 |
| Processor | |
| Processor Type: | RockChip RK2918 |
| Clock Frequency (MHz): | 1008 |
| Memory | |
| Random access memory (RAM) (MB): | 512 |
| Read-only memory (ROM) (GB): | 8 |
| Communications | |
| Wi-Fi: | 802.11b,g,n |
| Multimedia | |
| Screen Size: | 5 |
| Screen type: | TFT |
| Accelerator: | Vivante GC800 |
| Front camera (Mp): | 1.3 |
| Speaker: | mono |
| Output of earphones: | 3.5 |
| Other: | G-Sensor |
| Management and input | |
| Touchscreen: | capacitive |
| Buttons: | touch buttons |
| Extension | |
| Memory Cards: | microSD, microSDHC |
| Connectors: | USB-host, miniUSB |
| Additionally | |
| Features: | Vibration |