M7

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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 (with Silver under production) 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 Supports installation of APP(Spotify, Qobuz, Roon, Deezer) in the white list 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...