| Brand | Fiio |
| Model | X5 3rd Generation |
| Body | CNC Aluminum Alloy |
| Dimension | Width 66.2 mm X Height 114.2 mm X Depth 14.8 mm |
| Weight | 5.82 oz (165 g) |
| Display | 3.97" 480 x 800 IPS TFT Touchscreen |
| Native DSD | Playback up to DSD128 (5.6448mHz) |
| DAC | Cirrus Logic CS4398 x 1 Single DAC |
| Decoding | Support up to 24bit / 192kHz playback |
| Supported Audio Formats | DXD, DSD64, DSD128, WAV, FLAC, APE, ALAC, AIFF, WMA, MP3, OGG Vorbis |
| Balanced Output | More than 1.8 Vrms |
| Operating System | Customised using Android 5.1. Offer Dual operation modes: Pure Music Mode / Android Mode. Allow instant switch between two modes |
| EQ | Professional 10-band equaliser with 9 built-in genre EQs, App built-in ViPER effect |
| UI Settings | Customisable main menu on playlist, local music, DLNA, recently played, most played, recently added |
| Outputs | 3.5mm headphone port, 2.5mm balanced headphone port, 3.5mm line-out / coaxial digital output port, Micro USB port |
| Other Outputs | Micro USB & USB DAC |
| Input | Support USB 2.0 for charging and data transfer |
| Input Connection Mode | MTP (Media Device) |
| Battery | 3,400mAh 3.8V Battery (last up to 10 hours) |
| Internal Memory | 32GB internal flash memory |
| External Memory Slot 1 | MicroSD, support up to 256GB |
| External Memory Slot 2 | MicroSD, support up to 256GB |
| WIFI | 802.11 b/g/n (2.4GHz) |
| Bluetooth | V4.0 aptX HD Bluetooth Codec Support |
| Feature Enhancements | Firmware upgrades supported in the following forms: Update zip files in internal storage, memory card or automatic OTA (Over-the-Air) push notification |