| Name/Model No. |
M9 |
X5Ⅲ |
M7 |
M3K |
| CPU model |
Exynos 7270 14nm |
RK3188 |
Exynos 7270 14nm |
Ingenic X1000/E, 40nm |
| CPU operating frequency |
1GHz |
1.4GHz |
1GHz |
1GHz |
| No. of cores |
2 |
4 |
2 |
1 |
| DAC |
AK4490EN×2 |
AK4490EN×2 |
ES9018Q2C |
AK4376A |
| Operating system |
Deeply customized Android |
Deeply customized Android |
Deeply customized Android |
Linux |
| Input method |
Multi-touch screen |
Touchscreen |
Touchscreen |
Touch button+Physical button |
| Keyboard |
Virtual QWERTY keyboard |
Virtual QWERTY keyboard |
Virtual QWERTY keyboard |
Touch button+Physical button |
| Special features |
LDAC, HWA, Gesture operation, WiFi Streaming, RGB indicator for different formats, Bi-directional Bluetooth, 8-layer HDI PCB |
Dual Android / Pure Music operating modes, Symmetrical remappable keys, USB DAC, Docking connector, etc. |
LDAC, FM radio, Clock, Gestures operation |
Long battery life, Deep sleep, Recording, Repeat |
| User interface |
Customized/FiiO Music |
Android 5.1.1/FiiO Music |
Deeply customized /FiiO Music |
Deeply customized |
| Chips used |
SoC: Samsung Exynos 7270; DAC: AK4490EN*2; FPGA: A3P030; LPF: OPA1612; BUF; OPA1622*2
Bluetooth chip: Samsung S5N5C10B01-6330 |
SoC: RK3188; DAC: AK4490x2; LPF: OPA1642x2; OP: Customized OPA426x2 |
SoC: Samsung Exynos 7270; DAC: ES9018Q2C; FM chip: Si4705
Bluetooth chip: Samsung S5N5C10B01-6330 |
SoC: Ingenic X1000/E; DAC: AK4376A |
| WiFi |
2.4G, WiFi transmission supported |
2.4GHz IEEE802.11 b/g/n standards supported |
N/A |
N/A |
| Bluetooth version |
Bluetooth v4.2 |
Bluetooth v4.0 |
Bluetooth v4.2 |
N/A |
| Bluetooth transmission |
LDAC/aptX/aptX HD/SBC (both natively from the player and through USB DAC) |
aptX/SBC |
LDAC/aptX/aptX HD/SBC |
N/A |
| Bluetooth reception |
SBC/LDAC(required to update to the latest firmware) |
N/A |
SBC/LDAC(required to update to the latest firmware) |
N/A |
| DLNA |
Supports Windows for now, will support more in the future |
N/A |
N/A |
N/A |
| USB |
Type C Two-way USB2.0 |
Micro USB2.0 |
Type C Two-way USB2.0 |
Micro USB2.0 |
| HWA (LHDC) |
Natively from the player |
N/A |
Natively from the player (to be added with software updates) |
N/A |
| AirPlay |
Supported (required to update to the latest firmware) |
N/A |
N/A |
N/A |
| FiiO Link |
Supported (required to update to the latest firmware) |
N/A |
Supported (required to update to the latest firmware) |
N/A |
| Display size |
3.2 inches |
3.97 inches |
3.2 inches |
2.0 inches |
| Display type |
LG IPS in-cell touchscreen |
IPS TFT |
LG IPS in-cell touchscreen |
IPS TFT |
| Resolution |
480×800 |
480×800 |
480×800 |
240×320 |
| Touchscreen |
5-point multi-touch |
Supported |
2-point multi-touch |
N/A |
| Number of colours |
16 million |
16.7 million |
2.62 million |
0.262 million |
| Viewable angle |
Full-view |
178° |
Full-view |
Full-view |
| Pixel density(PPI) |
292 |
233 |
292 |
200 |
| RAM |
768MB |
1GB |
768MB |
64MB |
| Storage expansion type |
Micro SD card |
Micro SD card |
Micro SD card |
Micro SD card |
| Maximum storage expansion |
Theoretically 2TB (only one micro SD card slot) |
Theoretically 4TB (two micro SD card slots) |
Theoretically 2TB (only one micro SD card slot) |
Theoretically 2TB (only one micro SD card slot) |
| Total ROM |
4GB |
32GB |
4GB |
N/A |
| ROM available to user |
2GB |
26G |
2GB |
N/A |
| Buttons |
Physical button+Side volume scroll+Touch screen |
Physical button+Side volume scroll+Touch screen |
Physical button+Side volume scroll+Touch screen |
Touch button+Physical button |
| Headphone out (PO) |
3.5 mm headphone jack+2.5mm balanced headphone jack |
3.5 mm headphone jack+2.5mm balanced headphone jack |
3.5mm standard headphone output jack (shared PO/LO) |
Standard 3.5mm stereo jack decorated with metal ring |
| Line out (LO) |
3.5 mm port (shared with PO) |
3.5mm port (shared LO/Coaxial out) |
N/A |
| Multifuctional button |
N/A |
N/A |
N/A |
Playback control/Repeat |
| USB |
Two-way TYPE C USB2.0 (Charging/Data transmisson/USB DAC/USB Audio) |
Micro USB2.0 (Charging / Data transfer /
Docking function / USB DAC) |
Two-way TYPE C USB2.0 (Charging/Data transmisson/USB DAC/USB Audio) |
Micro USB2.0 (Charging/Data transfer/OTG/USB DAC) |
| SPDIF output |
3.5mm port (shared with PO) |
3.5mm port (shared LO/Coaxial out) |
N/A |
N/A |
| Color |
Black/Silver |
Titanium/Black/Red |
Black/Silver/Red/Blue |
Silver/Black |
| Dimensions |
60mm*106mm*13.3mm |
114.2 mm× 66.2 mm× 14.8 mm |
52mm×109mm×13mm |
90.8mm×44.2mm×12mm |
| Weight |
About 133g |
About 186g |
About 116 g |
About 77.5g |
| Volume control |
120 steps +/- button control |
120 steps +/- button control |
60 steps digital potentiometer |
60 steps digital potentiometer |
| Recommended headphone impedance |
16~300Ω |
16~150 Ω |
16~100 Ω |
16~100Ω |
| Treble control |
N/A |
N/A |
N/A |
N/A |
| Bass boost |
N/A |
N/A |
N/A |
N/A |
| Equalizer |
10-band EQ (±6dB), 9 presets+custom preset |
10-band EQ (±6dB), 9 presets+custom preset, ViPER Effect |
10-band EQ (±6dB), 9 presets+custom preset |
5-band EQ (±6dB)，7 presets |
| Gain control |
L/H |
L/H |
N/A |
N/A |
| Balance control |
±5dB |
±5dB |
±5dB |
±5dB |
| USB DAC |
Asynchronous 192kHz/24bit |
Asynchronous 192kHz/24bit |
Asynchronous 192kHz/24bit (FW1.0.4 or above) |
Asynchronous 192kHz/24bit |
| USB audio |
DSD64/128, DoP/D2P |
Up to 384kHz/32bit, DSD128: DoP/D2P (on latest firmware) |
DSD64/128，DoP/D2P |
N/A |
| USB power adapter |
DC 5V/2A recommended |
DC 12/1.5A, 9V/2A, 5V/2A recommended |
DC 5V/2A recommended |
DC 5V/2A recommended |
| Charging indication |
Large charging icon shows on display when it's off, small charging icon shows on upper right of display when it's on |
via LCD display, and the onscreen battery gauge stops moving after fully charged |
Red light indicates，blue light turns on after fully charged |
Large charging icon shows on display when it's off, small charging icon shows on upper right of display when it's on |
| Battery indication |
Yes (accurate battery % readings) |
Yes (accurate battery % readings) |
Yes (accurate battery % readings) |
Yes |
| Battery capacity |
Internal 2350mAh Li-polymer battery |
Internal 3400 mAh High-voltage quick charging Li-polymer battery |
Internal 1880mAh Li-polymer battery |
Internal 1100mAh Li-polymer battery |
| Charging time |
＜2h（DC5V/2A） |
＜2 h (DC 12V/1.5A);＜3 h (DC 5V/2A) |
＜2.5 h（DC5V/2A） |
＜2.5 h（DC5V/2A） |
| Deep sleep time |
45 days |
N/A |
40 days |
＞38 days |
| Battery Life 1 |
＞10 h (3.5mm headphone output) |
＞10 h (3.5mm headphone output) |
＞20 h (3.5mm headphone output) |
＞24 h (3.5mm headphone output) |
| Volume |
46 |
46 |
15 |
24 |
| Screen |
OFF |
OFF |
OFF |
OFF |
| EQ |
OFF |
OFF |
OFF |
OFF |
| Load |
M3 open earbuds (27 Ω) |
M3 open earbuds (27 Ω) |
M3 open earbuds (27 Ω) |
M3 open earbuds (27 Ω) |
| Test File |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
| Battery Life 2 |
＞9 h (2.5mm TRRS balanced headphone output) |
＞8 h (2.5mm TRRS balanced headphone output) |
N/A |
N/A |
| Volume |
48 |
48 |
N/A |
N/A |
| Screen |
OFF |
OFF |
N/A |
N/A |
| EQ |
OFF |
OFF |
N/A |
N/A |
| Load |
M3 open earbuds (27 Ω) |
M3 open earbuds (27 Ω) |
N/A |
N/A |
| Test File |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
N/A |
N/A |
| Battery Life 3 |
＞30 h (SBC at Bluetooth output) |
N/A |
＞26 h (SBC at Bluetooth output) |
N/A |
| Volume |
60 |
N/A |
60 |
N/A |
| Screen |
OFF |
N/A |
OFF |
N/A |
| Load |
BTR1+FH1 |
N/A |
BTR1+FH1 |
N/A |
| Test File |
MP3 44.1kHz/16bit |
N/A |
MP3 44.1kHz/16bit |
N/A |
| Firmware upgrade |
Supports both via zip file and OTA |
Supports both via zip file and OTA |
Supports via zip file placed in internal storage or micro SD card |
Supports via micro SD card |
| Recording |
N/A |
N/A |
N/A |
支持 |
| A-B Repeat |
N/A |
N/A |
N/A |
支持 |
| USB OTG |
N/A |
N/A |
N/A |
支持 |
| Clock |
Supported |
Supported |
Supported |
Supported |
| Font size |
N/A |
Supported |
N/A |
N/A |
| Third-party apps support |
Can install whitelisted third-party music streaming apps |
No limits (recommended to install the apps listed on FiiO Market) |
N/A |
N/A |
| Line output specifications |
|
|
|
| THD+N |
＜0.002%（1kHz/10kΩ） |
＜0.0009% (1 kHz/10kΩ) |
＜0.004%（1kHz/10kΩ） |
N/A |
| Frequency response |
5Hz~80 kHz（-3dB） |
5 Hz~55 kHz（-3dB） |
20Hz~90 kHz（-3dB） |
N/A |
| Channel separation |
＞105dB |
＞98 dB (1 kHz) |
＞100dB |
N/A |
| SNR |
≥117dB (A-weighted) |
≥120 dB (A-weighted) |
≥117dB (A-weighted) |
N/A |
| Noise floor |
＜5uV |
N/A |
＜3uV |
N/A |
| Line level |
2V |
＞1.8Vrms |
1.2V |
N/A |
| FM index |
|
|
|
|
| Output power |
N/A |
N/A |
>20mW (76MHz); >30mW (108MHz) |
N/A |
| THD+N |
N/A |
N/A |
＜0.3% (76MHz);＜0.1% (108MHz) |
N/A |
| SNR |
N/A |
N/A |
>50dBA (76MHz); >70dBA (108MHz) |
N/A |
| Frequency response |
N/A |
N/A |
20Hz~4KHz (-3dB) |
N/A |
| Covered region |
N/A |
N/A |
20Hz~4KHz (-3dB) |
N/A |
| Headphone out specifications 1 (3.5mm headphone out jack) |
|
|
|
| Output power 1 |
≥125mW (16Ω / THD+N＜1%) |
≥480 mW (16Ω / THD+N＜1%) |
≥70mW (16Ω / THD+N＜1%) |
≥42mW (16Ω / THD+N＜1%) |
| Output power 2 |
≥170mW (32Ω /THD+N＜1%) |
≥250 mW (32Ω /THD+N＜1%) |
≥40mW (32Ω /THD+N＜1%) |
≥25mW (32Ω /THD+N＜1%) |
| Output power 3 |
≥19mW (300Ω / THD+N＜1%) |
≥28 mW (300Ω / THD+N＜1%) |
N/A |
N/A |
| Frequency response |
5Hz~80 kHz (-3dB) |
5 Hz~55 kHz (-3dB） |
20Hz~90 kHz（-3dB） |
5Hz~90 kHz (-3dB) |
| SNR |
≥118dB (A-weighted) |
≥115 dB (A-weighted) |
≥117dB (A-weighted) |
≥117dB (A-weighted) |
| Output impedance |
＜2Ω |
＜1Ω (32Ω loaded) |
＜2Ω |
＜1Ω (32Ω loaded) |
| THD+N |
＜0.002% (1kHz/32Ω) |
＜0.003% (1 kHz) |
＜0.004% (1kHz/32Ω) |
＜0.004% (1kHz/32Ω) |
| Separation |
＞72dB |
＞73 dB (1 kHz) |
N/A |
N/A |
| Peak output voltage |
6.5Vp-p |
＞8 Vp-p |
3.35Vp-p |
2.46Vp-p |
| Noise floor |
＜5uV |
N/A |
＜3uV |
＜2uV |
| Headphone out specifications 2 (2.5mm headphone out jack) |
|
|
|
| Output power 1 |
≥125mW (16Ω / THD+N＜1%) |
≥660 mW (16Ω / THD+N＜1%, balanced turbo on) |
N/A |
N/A |
| Output power 2 |
≥195mW（32Ω /THD+N＜1%, balanced turbo off)
≥220mW（32Ω /THD+N＜1%, balanced turbo on) |
≥740 mW (32Ω /THD+N＜1%, balanced turbo on) |
N/A |
N/A |
| Output power 3 |
≥24mW（300Ω / THD+N＜1%，balanced turbo off)
≥77mW（300Ω / THD+N＜1%，balanced turbo on) |
≥90 mW (300Ω / THD+N＜1%, balanced turbo on) |
N/A |
N/A |
| Frequency response |
5Hz~80 kHz（-3dB） |
5 Hz~55kHz（-3dB） |
N/A |
N/A |
| SNR |
≥113dB (A-weighted) |
≥111 dB (A-weighted) |
N/A |
N/A |
| Output impedance |
＜2Ω |
＜3Ω (32Ω loaded) |
N/A |
N/A |
| THD+N |
＜0.002%（1kHz/32Ω） |
＜0.003% (1 kHz) |
N/A |
N/A |
| Separation |
＞98dB |
≥98 dB (1 kHz) |
N/A |
N/A |
| Peak output voltage |
7.07Vp-p |
＞13.8 Vp-p (balanced turbo on) |
N/A |
N/A |
| Noise floor |
＜10uV |
N/A |
N/A |
N/A |
| File format support |
|
|
|
| Lossless: |
DSD：DSD64，128（iso”“.dsf”,“.dff”）
APE(Fast): 192 kHz/24 bit
APE(Normal): 192 kHz/24 bit
APE (High): 192kHz/24 bit
APE (Extra High): 48kHz/24 bit
APE (Insane): 48kHz/24 bit
FLAC: 192 kHz/24 bit
WAV: 192 kHz/64 bit
Aiff：192 kHz/24 bit
Aif:192 kHz/24 bit
WMA Lossless: 96 kHz/24 bit
Apple Lossless: 192 kHz/24 bit |
DSD：DSD64/128（“.iso”,“.dsf”,“.dff”）
DXD：352.8K
APE FAST/High/Normal：384kHz/24bit（MAX）
APE Extra High：192kHz/24bit（MAX）
APE Insane：48kHz/24bit（MAX）
Apple Lossless：384kHz/24bit（MAX）
AIFF：384kHz/24bit（MAX）
FLAC：384kHz/24bit（MAX）
WAV：384kHz/32bit（MAX）
WMA LOSSLESS：96kHz/24bit（MAX） |
DSD：DSD64（“.dsf”,“.dff”）
APE - Fast：192kHz/24bit（MAX.）
Apple Lossless：192kHz/24bit（MAX.）
AIFF：192kHz/24bit（MAX.）
FLAC：192kHz/24bit（MAX.）
WAV：192kHz/24bit（MAX.）
WMA LOSSLESS：96kHz/24bit（MAX.） |
DSD：DSD64（“.iso”“.dsf”,“.dff”）
APE(Fast): 192 kHz/24 bit
APE(Normal): 96 kHz/24 bit
APE (High): 96 kHz/24 bit
FLAC: 192 kHz/24 bit
WAV: 384 kHz/32 bit |
| Lossy compression: |
MP3，OGG，WMA，AAC... |
MP3，OGG，WMA，AAC... |
MP3，OGG，WMA，AAC... |
MP3，OGG，WMA，AAC... |
