|Manufacturer||FiiO Electronics Technology|
|Type||Digital media, Portable media player, USB audio interface|
|System on a chip||Ingenic JZ4760B or Rockchip RK3188|
|CPU||XBurst1 (MIPS32) or Cortex A9 (ARMv7)|
|Removable storage||microSD slot accepts SD, SDHC, and SDXC cards up to 128 GB|
|Power||Li-Ion rechargeable battery|
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- All models support digital audio sampled up to 192 kHz with samples of up to 24 bits.
- All models support the lossless audio formats FLAC, ALAC, Monkey's audio (APE), WMA Lossless, and WAV.
- All models support the lossy audio formats AAC, MP3, Ogg Vorbis, and WMA.
- All models support gapless playback and hardware (non DSP) bass and treble controls.
|Model||Released||MSRP||Display||SoC||RAM||Storage||Battery Capacity||Audio Output||Connectivity||DAC||USB DAC||DSD Support||Dimensions||Weight|
|Screen||Touchsceen||Internal Storage||microSD Slots||WiFi||Bluetooth|
|X1 ||2014||$100||TN 320x240||No||Ingenic JZ4760B Xburst1 (MIPS32)||N/A||None||1||1700 mAh||Single 3.5 mm jack,
|No||No||TI PCM5142||No||No||96.7 × 57.7 × 14.1 mm||106 g|
|X1 (Second Gen) ||2016||$120||IPS 320x240||1800 mAh||Yes||TI PCM5242||97 × 55.5 × 12 mm||102 g|
|X3 ||2013||$300||8 GB||3100 mAh||Three 3.5 mm jacks: headphone, line-level, digital||No||Wolfson WM8740||Yes||Yes||109 × 55 × 16 mm||122 g|
|X3 (Second Gen) ||2015||$200||None||2600 mAh||Two 3.5 mm jacks, headphone, shared line-level/digital||No||Cirrus Logic CS4398||96.7 × 57.7 × 16.1 mm||135 g|
|X5 ||2014||$350||IPS 400x360||2||3700 mAh||Three 3.5 mm jacks: headphone, line-level, digital||No||TI PCM1792A||67.6 × 114 × 15.6 mm||195 g|
|X5 (Second Gen) ||2015||$350||3300 mAh||Two 3.5 mm jacks, headphone, shared line-level/digital||109 × 63.5 × 15.3 mm||165 g|
|X5 (Third Gen) ||2017||$350||IPS 480x800||Yes||Rockchip RK3188 (ARMv7)||1 GB||32 GB||3400 mAh||Two 3.5 mm jacks: headphone, line-level/ digital
One 2.5 mm jack: balanced headphone port
|Yes||Yes||AK4490||114.2 × 66.2 × 14.8 mm||186 g|
|X7 ||2016||$550||1||3500 mAh||Two 3.5 mm jacks: headphone, line-level/ digital||ES9018S||130 × 64 × 16.6 mm||220 g|
|X7 Mark II ||2017||$650||2 GB||64 GB||2||3800 mAh||Two 3.5 mm jacks:
one for headphone, line-level/ digital one for shared LO/Coaxial out
One 2.5 mm jack:
balanced headphone port
|ESS9028 PRO||128.7 × 67.2 × 15.5mm||212 g|
In reviewing the FiiO X3, LA Times' music critic Mark Swed concluded it is a better alternative to an iPod. Swed noted that the X3 utilizes that same digital-to-analog converter that is found in much more expensive players, such as Astell & Kern models that are being sold for $699 and $1,299. In his opinion the FiiO X3 may not have A&K’s sweet and open sound, but it could be purchased for around $200 as of April, 2013.
Steve Guttenberg of CNET compared the FiiO X5 to the Apple iPod Classic and the not-yet-released PonoPlayer. He found the "iPod sounded vague and blurry next to the pristine X5" when playing identical ALAC audio files. The review also noted that the PonoPlayer plays fewer formats than the FiiO X series players, but costs more than the X3.
A review of the X3 in Hi-Fi World reported that the sound and amplification are good, but added that the interface was "least intuitive" and "inelegant." The conclusion was: "a fine budget starting point in high-resolution digital."
The X1 features physical buttons and a spin wheel which "clicks" when rotated. Each "click" of the wheel moves the selected item up or down. There are three buttons on the side of the device, one is used to power up/down the device and put it in sleep mode, while the other two raised buttons function for volume. In addition, when in sleep mode and playing music, the volume up/down buttons can be used for skipping a song or going back a song in the selected album/playlist.
- Undersys; et al. "Thread regarding FiiO X3 and X5 hardware on the Rockbox Technical Forums". forums.rockbox.org. Retrieved 3 February 2015.
- "X1 Spec Sheet". Retrieved 2017-02-22.
- "X1 2nd gen Spec Sheet". Retrieved 2017-02-22.
- "X3 Spec Sheet". Retrieved 2017-02-22.
- "X3 2nd gen Spec Sheet". Retrieved 2017-02-22.
- "X5 Spec Sheet". Retrieved 2017-02-22.
- "X5 2nd gen Spec Sheet". Retrieved 2017-02-22.
- "X5 3rd gen Spec Sheet". Retrieved 2017-02-22.
- "X7 Spec Sheet". Retrieved 2017-02-22.
- "X7 Mark II Spec Sheet". Retrieved 2019-04-03.
- Swed, Mark (29 August 2013). "New audio player Fiio X3 tops the iPod, and is cheaper too". LA Times. Retrieved 3 February 2015.
- Guttenberg, Steve (14 May 2014). "Why wait for the Pono portable high-resolution music player? The FiiO X5 is here now". cnet.com. CNET. Retrieved 3 February 2015.
- Keywood, Noel (January 2014). "FiiO X3 Review". Hi-Fi World. Retrieved 3 February 2015.