| Model |
M6 |
M7 |
M9 |
| CPU |
Exynos 7270 14nm |
Exynos 7270 14nm |
Exynos 7270 14nm |
| CPU operating frequency |
1GHz |
1GHz |
1GHz |
| CPU No. of cores |
2 |
2 |
2 |
| DAC |
ES9018Q2C |
ES9018Q2C |
AK4490EN×2 |
| Operating system |
Customized |
Customized |
Customized |
| Input method |
Multi-touch screen |
Touchscreen |
Multi-touch screen |
| Keyboard |
Virtual QWERTY keyboard |
Virtual QWERTY keyboard |
Virtual QWERTY keyboard |
| Special features |
WiFi Streaming，LDAC/HWA/aptX/aptX HD/SBC Bluetooth support，Airplay with Apple devices，FiiO Link |
LDAC，FM radio，clock，gestures operation |
LDAC，HWA，Gesture operation，WiFi Streaming，RGB indicator for different formats，Bi-directional Bluetooth，8-layer HDI PCB |
| User interface |
Customized/FiiO Music |
Customized/FiiO Music |
Customized/FiiO Music |
| Chips used |
SoC: Samsung Exynos 7270 ， DAC：ES9018Q2C,，Bluetooth chip：SAMSUNG S5N5C10B01-6330 |
SoC: Samsung Exynos 7270 ， DAC：ES9018Q2C, FM chip：Si4705，Bluetooth chip：SAMSUNG S5N5C10B01-6330 |
SoC: Samsung Exynos 7270，DAC：AK4490EN*2，FPGA：A3P030，LPF：OPA1612，BUF：OPA1622*2
Bluetooth chip：SAMSUNG S5N5C10B01-6330 |
| WiFi |
2.4G，WiFi transmission supported |
N/A |
2.4G，WiFi transmission supported |
| Bluetooth |
4.2 |
4.2 |
4.2 |
| Bluetooth transmit |
LDAC/HWA/aptX/aptX HD/SBC (HWAAvailable when playing on M9, other codecs available when playing on M9 and using as USB DAC) |
LDAC/aptX/aptX HD/SBC（required to update to FW1.0.4 or above, Available when playing on M7 or using M7 as USB DAC） |
LDAC/aptX/aptX HD/SBC（Available when playing on M9 or using M9 as USB DAC） |
| Bluetooth receive |
SBC/LDAC to be supported |
SBC/LDAC to be supported |
SBC/LDAC to be supported |
| DLNA |
Supports Windows for now, will support more in the future |
N/A |
Supports Windows for now, will support more in the future |
| USB |
TYPE C Two-way USB2.0 |
TYPE C Two-way USB2.0 |
TYPE C Two-way USB2.0 |
| HWA（LHDC） |
Available when playing on M9 |
Available when playing on M9 |
Available when playing on M9 |
| AirPlay |
Supported |
N/A |
To be supported |
| FLYLINK |
Supported |
N/A |
To be supported |
| Display size |
3.2 inches |
3.2 inches |
3.2 inches |
| Display type |
LG IPS screen |
LG IPS screen |
LG IPS screen |
| Resolution |
480×800 |
480×800 |
480×800 |
| Touchscreen |
5-finger multi-touch |
Yes |
5-finger multi-touch |
| Number of colours |
16M |
2.62 million colors |
16M |
| Viewable angle |
Full-view |
Full-view |
Full-view |
| Pixel density(PPI) |
292 |
292 |
292 |
| RAM |
768MB |
768MB |
768MB |
| Storage expansion type |
Micro SD card |
Micro SD card |
Micro SD card |
| Maximum storage expansion |
Theoretically 2TB (only one micro SD card slot) |
Theoretically 2TB (only one micro SD card slot) |
Theoretically 2TB (only one micro SD card slot) |
| ROM |
4GB |
4GB |
4GB |
| ROM available to user |
2GB |
2GB |
2GB |
| Buttons |
Physical button+Touch screen |
Physical button+Side volume scroll+Touch screen |
Physical button+Side volume scroll+Touch screen |
| Headphone out (PO) |
3.5mm standard headphone output jack (shared PO/LO) |
3.5mm standard headphone output jack (shared PO/LO) |
3.5 mm headphone jack+2.5mm balanced headphone jack |
| Line out (LO) |
3.5 mm port（shared PO） |
3.5 mm port（shared PO） |
3.5 mm port（shared PO） |
| Button customization |
N/A |
N/A |
N/A |
| USB |
Two-way TYPE C USB2.0（Charging/Data transmisson/USB DAC/USB Audio） |
Two-way TYPE C USB2.0（Charging/Data transmisson/USB DAC/USB Audio） |
Two-way TYPE C USB2.0（Charging/Data transmisson/USB DAC/USB Audio） |
| SPDIF output |
N/A |
N/A |
3.5mm port（shared PO） |
| Color |
Black |
Black/Silver/Red/Blue |
Black/Silver |
| Dimensions |
53.3mm×92.5mm×11.5mm |
52mm×109mm×13mm |
60mm*106mm*13.3mm |
| Weight |
about 83g |
about 116 g |
about 133g |
| Volume control |
120 steps +/- button control |
60 steps +/- button control |
120 steps +/- button control |
| Recommended headphone impedance |
16~100 Ω |
16~100 Ω |
16~300Ω |
| Treble control |
N/A |
N/A |
N/A |
| Balance control |
N/A |
N/A |
N/A |
| Equalizer |
10-band EQ (±6dB), 9 presets+custom preset |
10-band EQ (±6dB), 9 presets+custom preset |
10-band EQ (±6dB), 9 presets+custom preset |
| Gain control |
N/A |
N/A |
L/H |
| Balance control |
±5dB |
±5dB |
±5dB |
| USB DAC |
Asynchronous 192kHz/24bit |
Asynchronous 192kHz/24bit（To be supported） |
Asynchronous 192kHz/32bit |
| USB Audio |
DSD64/128，DoP/D2P |
DSD64/128，DoP/D2P |
DSD64/128，DoP/D2P |
| USB power adapter |
DC 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 |
Large charging icon shows on display when it's off, small charging icon shows on upper right of display when it's on |
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) |
| Battery capacity |
1200mAh Li-polymer battery |
1880mAh Li-polymer battery |
2350mAh Li-polymer battery |
| Charging time |
＜2.5h（DC5V/2A） |
＜2.5h（DC5V/2A） |
＜2h（DC5V/2A） |
| Deep sleep time |
26 days |
40 days |
45 days |
| Battery life 1 |
3.5mm headphone output：＞13h |
3.5mm headphone output：＞20h |
3.5mm headphone output：＞10h |
| Volume |
57 |
15 |
46 |
| Screen |
OFF |
OFF |
OFF |
| EQ |
OFF |
OFF |
OFF |
| Load |
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 |
| Battery life 2 |
N/A |
N/A |
2.5mm balanced output：＞9h |
| Volume |
N/A |
N/A |
48 |
| Screen |
N/A |
N/A |
OFF |
| EQ |
N/A |
N/A |
OFF |
| Load |
N/A |
N/A |
M3 open earbuds (27 Ω) |
| Test File |
N/A |
N/A |
MP3 44.1kHz/16bit |
| Battery life 3 |
Bluetooth output：＞15h（SBC） |
Bluetooth output：＞26h（SBC） |
Bluetooth output：＞30h（SBC） |
| Volume |
120 |
60 |
60 |
| Screen |
OFF |
OFF |
OFF |
| Load |
BTR1+FH1 |
BTR1+FH1 |
BTR1+FH1 |
| Test File |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
| Firmware Upgrade |
Supports both via zip file and OTA |
Supports via zip file |
Supports both via zip file and OTA |
| Recording |
N/A |
N/A |
N/A |
| A-B Repeat |
N/A |
N/A |
N/A |
| OTG Transfer |
N/A |
N/A |
N/A |
| Clock |
Supported |
Supported |
Supported |
| Font size |
Not supported |
Not supported |
Not supported |
| Third-party apps support |
Preinstalled：FiiO Music, Netease Music, MOOV, Tidal, KKBOX
APP whitelist：Spotify、Qobuz、Roon、Deezer，QQ Music、Xiami Music、JOOX、ES file manager、Himalaya (copy the apk file to Micro SD card or internal storage to install) |
N/A |
Preinstalled：FiiO Music, Netease Music, MOOV, Tidal, KKBOX
APP whitelist：Spotify、Qobuz、Roon、Deezer，QQ Music、Xiami Music、JOOX、ES file manager、Himalaya (copy the apk file to Micro SD card or internal storage to install) |
| Line output specifications |
|
|
|
| THD+N |
＜0.002%（1kHz/10kΩ） |
＜0.004%（1kHz/10kΩ） |
＜0.002%（1kHz/10kΩ） |
| Frequency response |
10Hz~85 kHz（-3dB） |
20Hz~90 kHz（-3dB） |
5Hz~80 kHz（-3dB） |
| Channel separation |
＞112dB |
＞100dB |
＞105dB |
| SNR |
≥117dB (A-weighted) |
≥117dB (A-weighted) |
≥117dB (A-weighted) |
| Noise floor |
＜3uV |
＜3uV |
＜5uV |
| Line level |
1.5V |
1.2V |
2V |
| FM Index |
|
|
|
| Output power |
N/A |
>20mW（76MHz），>30mW（108MHz） |
N/A |
| THD+N |
N/A |
＜0.3%（76MHz）,＜0.1%（108MHz） |
N/A |
| SNR |
N/A |
>50dBA（76MHz），>70dBA（108MHz） |
N/A |
| Frequency response |
N/A |
20Hz~4KHz（-3dB） |
N/A |
| Covered region |
N/A |
20Hz~4KHz（-3dB） |
N/A |
| Headphone out specifications 1（3.5mm port） |
|
|
|
| Output power 1 |
≥110mW（16Ω / THD+N＜1%) |
≥70mW（16Ω / THD+N＜1%) |
≥125mW（16Ω / THD+N＜1%) |
| Output power 2 |
≥70mW（32Ω /THD+N＜1%) |
≥40mW（32Ω /THD+N＜1%) |
≥170mW（32Ω /THD+N＜1%) |
| Output power 3 |
≥7mW（300Ω / THD+N＜1%) |
N/A |
≥19mW（300Ω / THD+N＜1%) |
| Frequency response |
10Hz~85 kHz（-3dB） |
20Hz~90 kHz（-3dB） |
5Hz~80 kHz（-3dB） |
| SNR |
≥118dB (A-weighted) |
≥117dB (A-weighted) |
≥118dB (A-weighted) |
| Output impedance |
＜2Ω |
＜2Ω |
＜2Ω |
| THD+N |
＜0.002%（1kHz/32Ω） |
＜0.004%（1kHz/32Ω） |
＜0.002%（1kHz/32Ω） |
| Separation |
＞75dB |
N/A |
＞72dB |
| Peak output voltage |
4.24Vp-p |
3.35Vp-p |
6.5Vp-p |
| Noise floor |
＜3uV |
＜3uV |
＜5uV |
| Headphone out specifications 2（2.5mm port） |
|
|
|
| Output power 1 |
N/A |
N/A |
≥125mW（16Ω / THD+N＜1%) |
| Output power 2 |
N/A |
N/A |
≥195mW（32Ω /THD+N＜1%，balanced turbo off)
≥220mW（32Ω /THD+N＜1%，balanced turbo on) |
| Output power 3 |
N/A |
N/A |
≥24mW（300Ω / THD+N＜1%，balanced turbo off)
≥77mW（300Ω / THD+N＜1%，balanced turbo on) |
| Frequency response |
N/A |
N/A |
5Hz~80 kHz（-3dB） |
| SNR |
N/A |
N/A |
≥113dB (A-weighted) |
| Output impedance |
N/A |
N/A |
＜2Ω |
| THD+N |
N/A |
N/A |
＜0.002%（1kHz/32Ω） |
| Separation |
N/A |
N/A |
＞98dB |
| Peak output voltage |
N/A |
N/A |
7.07Vp-p |
| Noise floor |
N/A |
N/A |
＜10uV |
| 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（“.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：DSD64，128（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 |
| Lossy compression: |
MP3，OGG，WMA，AAC… |
MP3，OGG，WMA，AAC… |
MP3，OGG，WMA，AAC… |
