| Dimensions | 6.6 × 11.4 × 1.5 cm (W × H × D) |
| Weight | 186g |
| Frequency Response | 5 Hz~55 kHz（-3dB） |
| Display | 3.97” IPS TFT touchscreen, 480x800 pixels |
| Material | CNC aluminium alloy |
| Buttons | Left (Play/Pause, Pre and Next), Volume knob (Vol+ and Vol-), Right (Power) |
| DAC | Dual top-of-the-line AKM AK4490EN DACs |
| SoC | Powerful quad-core Cortex A9 SoC Rockship RK3188 |
| RAM | 1GB |
| Storage | 32GB internal storage |
| Battery | Internal 3.8V 3400 mAh Li-polymer battery |
| Storage expansion | Dual micro SD card slots supporting up to 512GB (256GB x 2) |
| Recommended headphone impedance | 16~150 Ω |
| Links | https://www.fiio.com/x5iii |
