| Name/Model |
M15S |
M17 |
M11 Plus LTD |
M15 |
| CPU model |
Snapdragon 660 14nm |
Snapdragon 660 14nm |
Snapdragon 660 14nm |
Exynos 7872 14nm |
| CPU frequency |
8*Kyro260 (2.2GHz maximum) |
8*Kyro260（2.2GHz） |
8*Kyro260（2.2GHz） |
2GHz（A73×2），1.6GHz（A53×4） |
| Number of CPU cores |
8 |
8 |
8 |
6 |
| DAC |
ES9038PRO |
ES9038PRO×2 |
AK4497EQ×2 |
AK4499EQ×2 |
| Operating system |
Highly customized Android system |
Highly customized Android system |
Highly customized Android system |
AK4499EQ×2 |
| Touchscreen |
Ten-Point Touchscreen |
Ten-Point Touchscreen |
Ten-Point Touchscreen |
Ten-Point Touchscreen |
| Keyboard type |
Virtual QWERTY keyboard |
virtual QWERTY keyboard |
virtual QWERTY keyboard |
virtual QWERTY keyboard |
| Special features |
Android mode/Pure music mode/USB DAC mode/Bluetooth receiving mode/AirPlay mode/Desktop mode/
MQA 8x renderer/ customizable multi-function buttons/ global no SRC/ global All to DSD/ 2.5+3.5+4.4 output, full-screen gesture operation |
Coaxial input mode/ DC and battery dual power supply system/ knob and button dual volume control mode/ 2.5+3.5+4.4+6.35+RCA coaxial port/ dual Type C port/global no SRC/ global All to DSD |
MQA 8x renderer/ customizable multi-function buttons/ global no SRC/ global All to DSD/ 2.5+3.5+4.4 output/ full-screen gesture operation |
Full format Bluetooth reception/ analog potentiometer volume knob/ MQA 8x renderer/ Corning Gorilla Glass/ customizable multi-function buttons/ global no SRC/ global All to DSD/ 2.5+3.5+4.4 output/ full screen gesture operation |
| User Interface |
Android mode/Pure music mode/USB DAC mode/Bluetooth receiving mode/AirPlay mode/Desktop mode (enabled when powered by QC) |
Android mode/Pure sound mode/USB decoding mode/Bluetooth receiving mode/Coaxial decoding mode/AirPlay mode |
Android mode/Pure sound mode/USB decoding mode/Bluetooth receiving mode/AirPlay mode |
Android mode/Pure sound mode/USB decoding mode/Bluetooth receiving mode |
| Hardware solution |
CPU: Snapdragon 660
DAC: ES9038PRO
AMP: OPA926*2
XTAL: NDK femtosecond xtal*2
BT: QCC5124 |
CPU: Snapdragon 660
DAC: ES9038PRO*2
AMP: THX AAA-788+*2
BT: QCC5124/
USB: XMOS XUF208
XTAL: NDK femtosecond xtal*2 |
CPU: Snapdragon 660
DAC: AK4497EQ*2
AMP: THX AAA-78*2
XTAL: NDK femtosecond xtal*2 |
CPU: Exynos 7872
DAC: AK4499EQ*2
AMP: OPA2211*2+OPA1622*4+OPA1612*4
BT: CSR8675
USB: XMOS XUF208/
XTAL: NDK femtosecond xtal*2
FPGA: A3P030 |
| Bluetooth transmitter chip: WCN3990, BT5.0 |
Bluetooth transmitter chip: WCN3990/ BT5.0 |
Bluetooth transmitter chip: WCN3990/ BT5.0 |
Bluetooth transmitter chip: SAMSUNG S5N5C10B01-6330 |
| WiFi |
2.4G/5G, supports WiFi music transfer |
2.4G/5G/ supports WiFi music transfer |
2.4G/5G/ supports WiFi music transfer |
2.4G/5G/ supports WiFi music transfer |
| Bluetooth version |
5 |
5 |
5 |
4.2 |
| Bluetooth receiving format |
SBC/AAC/aptX/aptX HD/LDAC/LHDC |
SBC、AAC、aptX、aptX LL、aptX HD、aptX Adaptive、LDAC |
SBC、AAC、aptX、aptX HD，LDAC |
LDAC/HWA/aptX/aptX HD/SBC |
| Bluetooth receiver version |
5 |
5 |
5 |
5 |
| Bluetooth transmission format |
AAC/SBC/aptX/aptX LL/aptX HD/LDAC/atpX Adaptive |
SBC、AAC、aptX、aptX HD，LDAC |
SBC、AAC、LDAC |
SBC/AAC/aptX/aptX LL/aptX HD/LDAC |
| DLNA |
Supports to access to PC/NAS (upnp protocol) |
supports to access to PC/NAS (upnp protocol) |
supports to access to PC/NAS (upnp protocol) |
supports to access to PC/NAS (upnp protocol) |
| AirPlay |
Yes |
Yes |
Yes |
Yes |
| FiiO Link |
Yes |
Yes |
Yes |
Yes |
| All to DSD |
Yes |
Yes |
Yes |
Yes |
| MQA |
Yes |
Yes |
Yes |
Yes |
| Three finger pull-down screenshot |
Yes |
Yes |
Yes |
Yes |
| Screen size |
5.5 inches |
5.99 inches |
5.5 inches |
5.15 inches |
| Screen type |
IPS high-definition full-fit display |
IPS high-definition full-fit incell display |
IPS high-definition full-fit display |
IPS high-definition full-fit incell display |
| Resolution |
1440*720 |
1080×2160 |
1440×720 |
1440×720 |
| RAM |
4GB |
4GB |
4GB |
3GB |
| Storage expansion type |
Micro SD (TF card) |
Micro SD (TF card) |
Micro SD (TF card) |
Micro SD (TF card) |
| Maximum support expansion |
Single TF card, theoretically supports up to 2TB expansion |
single TF card/theoretically support up to 2TB expansion |
single TF card/theoretically support up to 2TB expansion |
single TF card/theoretically support up to 2TB expansion |
| ROM |
64GB |
64GB |
64GB |
64GB |
| ROM available to user |
About 46GB |
About 46GB |
About 46GB |
About 52GB |
| Button |
Physical key + analog potentiometer volume knob + HOLD switch + touch screen |
Physical key + analog potentiometer volume knob + volume button + multi-function key + HOLD switch + DC/BAT switch + touch screen |
Physical key + volume touch and button all-in-one panel + HOLD switch + touch screen |
Physical key + analog potentiometer volume knob + HOLD switch + touch screen |
| Headphone output ports(PO) |
3.5 mm +2.5mm +4.4mm |
3.5 mm +2.5mm +4.4mm +6.35mm |
3.5 mm +2.5mm +4.4mm |
3.5 mm +2.5mm +4.4mm |
| Analog audio output ports(LO) |
3.5 mm port (shared with PO port)
4.4mm BAL port (shared with BAL port) |
3.5 mm socket (shared with PO port) |
3.5 mm socket (shared with PO port) |
3.5 mm socket (shared with PO port) |
| Multi-function keys |
Add to my favorites/One key to randomize the next song/Play and pause/One key to delete the currently playing song, etc.
Switch filter or equalizer/Enter USB DAC mode or Bluetooth receiving mode/No function |
Add to favorites/play next song randomly/play pause/delete currently playing song/switch filter/ equalizer/enter USB DAC mode/ Bluetooth receiving mode/no function |
Add to favorites/play next song randomly/play pause/delete currently playing song/switch filter/ equalizer/enter USB DAC mode/ Bluetooth receiving mode/no function |
One key to add to favorites/ one key to randomize the next song/ one key to delete the currently playing song/ one key to switch to USB decoding mode/ one key to switch to Bluetooth receiving mode/ etc. |
| USB |
Two-way TYPE C USB3.0 (charging/data transmission/USB DAC/USB Audio) |
Two-way Type-C USB3.0 (charging/data transfer)/ USB HOST Type-C USB2.0 |
Two-way TYPE C USB3.0 (charging/data transmission) |
Two-way TYPE C USB2.1 (charging/data transmission/USB DAC/USB Audio) |
| SPDIF output |
3.5mm port (shared with PO port), supports up to 384kHz/32bit and DSD128 |
3.5 mm socket (shared with PO port) |
3.5mm socket (shared with PO port)/ DSD64/128/ 384kHz/32bit/ DoP/D2P |
3.5mm socket（shared with PO port），DSD64/128，384kHz/32bit，DoP/D3P |
| Color |
Black |
black |
Black/ stainless steel |
black |
| Size |
140x80x18.9mm |
156.4*88.5*28mm |
136.6*75.7*17.6mm |
134*75*18mm |
| Weight |
About 345g |
About 610g |
About 310g (black)/405g (stainless steel) |
About307g |
| Volume control type |
Potentiometer knob or button control |
Potentiometer knob or button control |
Slide or key control |
Analog volume knob control |
| Recommended headphone impedance |
8~150Ω (3.5mm headphone output)
8~350Ω (2.5mm+4.4mm balanced headphone output) |
16~600Ω |
16~150Ω (3.5mm headphone output) |
16~600Ω |
| 16~300Ω (2.5mm+4.4mm balanced headphone output) |
| EQ adjustment |
10-band dynamic EQ adjustment (±12dB), built-in 8 preset EQ, custom EQ |
10-band dynamic EQ adjustment (±12dB)/ built-in 8 preset EQ/ custom EQ |
10-band dynamic EQ adjustment (±12dB)/ built-in 8 preset EQ/ custom EQ |
10-band dynamic EQ adjustment (±12dB)/ built-in 10 preset EQ |
| Gain selection |
L/M/H/Super high/Ultra high gain mode (when connected to DC) |
L/M/H/over-ear headphone mode/Enhanced over-ear headphone mode (when connected to DC) |
L/M/H |
L/H |
| Over-ear headphone mode |
Yes |
Yes |
N/A |
Yes |
| L/R channel balance adjustment |
L20~R20 (0.5dB per level) |
Plus or minus 5dB |
L20~R20 (0.5dB per level) |
Plus or minus 5dB |
| USB DAC |
384kHz/32bit|DSD256 |
192kHz-24bit/DSD64 |
384kHz/32bit|DSD128 |
768kHz/32bit|DSD512 |
| USB Audio |
768kHz-32bit/DSD512 (DoP/D2P/Native) |
384kHz-24bit/DSD128 |
768kHz-32bit/DSD512（DoP/D2P/Native） |
768kHz-32bit/DSD512 DoP/D2P/Native |
| Power supply |
QC3.0/ QC4.0 and PD2.0 and PD3.0 fast charge/ POWER IN DC 12V |
QC3.0/ QC4.0 and PD2.0 and PD3.0 fast charge/ POWER IN DC 12V |
QC4.0 and PD2.0 fast charge |
It is recommended to use QC2.0 (DC12V 1.5A) or above charging |
| Charging display |
The large icon in the off state displays real-time charging, and the upper right corner of the on state displays the real-time battery level and battery percentage |
The large icon in the off state displays real-time charging/ and the upper right corner of the on state displays the real-time battery level and battery percentage |
The large icon in the off state displays real-time charging/ and the upper right corner of the on state displays the real-time battery level and battery percentage |
The large icon in the off state displays real-time charging/ and the upper right corner of the on state displays the real-time battery level and battery percentage |
| Power display |
(Real-time power) can display the percentage |
(real-time power) can display the percentage |
(real-time power) can display the percentage |
(real-time power) can display the percentage |
| Battery capacity |
6200mAh 3.8V high voltage fast charge lithium ion polymer battery |
9200mAh 3.8V high voltage fast charge lithium ion polymer battery |
6000mAh 3.8V high voltage fast charge lithium ion polymer |
7490mAh 3.8V high voltage fast charge lithium ion polymer battery |
| Charging time |
＜3.5h (QC3.0 fast charge) |
＜4.5h (QC fast charge) |
＜3h (QC4.0 fast charge mode) |
＜3.5h (DC 12V/1.6A charging) |
| Deep standby time |
42 days |
42days |
41days |
75days |
| Battery Life & Test Conditions 1 |
＞10.5 hours (3.5mm headphone output) |
＞10 hours (3.5mm headphone output) |
＞11.5 hours (3.5mm headphone output) |
＞15 hours (3.5mm headphone output) |
| Screen status |
Off |
Off |
Off |
Off |
| EQ |
Off |
Off |
Off |
Off |
| Load |
32Ω |
32Ω |
32Ω |
27Ω |
| Play track and format |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
MP3 44.1kHz/17bit |
| Battery Life & Test Conditions 2 |
＞9 hours (2.5mm+4.4mm balanced output) |
＞8 hours (2.5mm+4.4mm balanced output) |
＞10 hours (2.5mm+4.4mm balanced output) |
＞9 hours (2.5mm headphone output) |
| volume |
29 |
65 |
37 |
50 |
| Screen status |
Off |
Off |
Off |
Off |
| EQ |
Off |
Off |
Off |
Off |
| Load |
32Ω |
32Ω |
32Ω |
27Ω |
| Play track and format |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
MP3 44.1kHz/16bit |
| Software upgrade |
Local storage upgrade + micro SD card local upgrade + OTA upgrade |
Local storage upgrade + TF card local upgrade + OTA push upgrade |
Local storage upgrade + TF card local upgrade + OTA push upgrade |
TF card local upgrade/OTA push upgrade |
| Clock function |
Yes |
Yes |
Yes |
Yes |
| Font size setting |
Yes |
Yes |
Yes |
Yes |
| Third party APP |
Factory built-in: FiiO Music, ES file browser, Chrome browser
Unlimited, free to install third-party apps
|
Factory built-in: FiiO Music/ ES file browser/ Chrome browser
Unlimited, free to install third-party apps |
Factory built-in: FiiO Music/ File Geek/ Chrome browser
Unlimited, free to install third-party apps |
Factory built-in: FiiO Music/ ES file browser/ Chrome browser
Unlimited, free to install third-party apps |
| Line out performance parameters(LO output) |
| THD+N |
≤0.00034% (1kHz/10kΩ) |
≤0.0006%（1kHz/10kΩ） |
＜0.00079%（1kHz/10kΩ） |
＜0.0004%（1kHz/10kΩ） |
| Frequency response |
20Hz~20kHz (-0.1dB)
20Hz~50kHz (-0.7dB) |
5Hz~80kHz（-3dB） |
5Hz~90kHz（-5dB） |
20Hz~90kHz（-4dB） |
| Crosstalk |
≥106dB (1kHz/10kΩ) |
≥103dB（1kHz/10kΩ） |
＞105dB（1kHz/10kΩ） |
＞107dB |
| SNR |
≥124.0dB (A-weighted) |
≥120dB |
＞121dB |
≥121dB (dBA) |
| Noise floor |
≤1.2μV (A-weighted) |
≤2μV |
＜1.7μV |
＜1.9μV |
| Line output level |
2V |
1.9V |
2V |
2.1V |
| Headphone output performance parameter 1 (3.5mm headphone output) |
| Output power 1 |
≥475mW（16Ω / THD+N＜1%) |
≥740mW（over-ear headphone mode/16Ω / THD+N＜1%) |
≥295mW（16Ω / THD+N＜1%) |
≥285mW（16Ω / THD+N＜1%) |
| ≥535mW（16Ω / THD+N＜1%) |
≥1.4W（Enhanced over-ear headphone mode/16Ω / THD+N＜1%) |
≥405mW（over-ear headphone mode/16Ω / THD+N＜1%) |
| Output power 2 |
≥395mW（32Ω /THD+N＜1%) |
≥500mW（over-ear headphone mode/32Ω /THD+N＜1%) |
≥206mW（32Ω /THD+N＜1%) |
≥215mW（32Ω /THD+N＜1%) |
| ≥580mW（32Ω /THD+N＜1%) |
≥1.1mW（Enhanced over-ear headphone mode/32Ω /THD+N＜1%) |
≥490mW（over-ear headphone mode/32Ω /THD+N＜1%) |
| Output power3 |
≥57mW（300Ω / THD+N＜1%) |
≥63mW（over-ear headphone mode300Ω / THD+N＜1%) |
≥23mW（300Ω / THD+N＜1%) |
≥31mW（300Ω / THD+N＜1%) |
| ≥93mW（300Ω / THD+N＜1%) |
≥126mW（Enhanced over-ear headphone mode/300Ω / THD+N＜1%) |
≥70mW（over-ear headphone mode/300Ω / THD+N＜1%) |
| Frequency response |
20Hz~20kHz（-0.15dB）
20Hz~50kHz（-1.0dB） |
5Hz~80kHz（-3dB） |
20Hz~80 kHz（-3dB） |
20Hz~90kHz（-4dB） |
| SNR |
≥121dB（A-weighted） |
≥122dB（dBA） |
≥120dB |
≥121dB（dBA） |
| ≥119dB（over-ear headphone mode/A计权） |
| Output impedance |
≤1.4Ω（32Ω） |
≤1Ω |
≤1Ω |
≤1.4Ω |
| THD+N |
≤0.0005%（1kHz/32Ω） |
≤0.0007%（1kHz/32Ω） |
＜0.0006%（1kHz/32Ω） |
＜0.0005%（1kHz/32Ω） |
|
CROSSTALK
|
≥80dB（1kHz/32Ω） |
≥75dB（1kHz/32Ω） |
≥76dB（1kHz/32Ω） |
＞77dB（1kHz/32Ω） |
| ＞115dB（no load） |
| Noise floor |
≤3.2μV（A-weighted） |
≤3.5μV |
＜2μV |
＜2.1μV |
| ＜3μV（over-ear headphone mode） |
| Headphone output performance parameter 2 (2.5mm headphone output) |
| Output power 1 |
≥531mW（16Ω / THD+N＜1%) |
≥1.5W（over-ear headphone mode/16Ω / THD+N＜1%) |
≥500mW（16Ω / THD+N＜1%) |
≥420mW（16Ω / THD+N＜1%) |
| ≥531mW（16Ω / THD+N＜1%) |
≥1.5W（Enhanced over-ear headphone mode/16Ω / THD+N＜1%) |
≥370mW（over-ear headphone mode/16Ω / THD+N＜1%) |
| Output power 2 |
≥990mW（32Ω /THD+N＜1%） |
≥1.5W（over-ear headphone mode/32Ω /THD+N＜1%） |
≥588mW（4.3V）（32Ω /THD+N＜1%） |
≥635mW（4.2V）（32Ω /THD+N＜1%） |
| ≥1200mW（32Ω /THD+N＜1%） |
≥3W（Enhanced over-ear headphone mode/32Ω /THD+N＜1%） |
≥800mW（over-ear headphone mode/16Ω / THD+N＜1%) |
| Output power 3 |
≥226mW（300Ω /THD+N＜1%) |
≥250mW（over-ear headphone mode/300Ω /THD+N＜1%) |
≥88mW（300Ω /THD+N＜1%) |
≥120mW（300Ω /THD+N＜1%) |
| ≥368mW（300Ω /THD+N＜1%) |
≥500mW（Enhanced over-ear headphone mode/300Ω /THD+N＜1%) |
≥280mW（over-ear headphone mode/16Ω / THD+N＜1%) |
| Frequency response |
20Hz~20kHz（-0.15dB）
20Hz~50kHz（-1.0dB） |
5Hz~80kHz（-3dB） |
20Hz~92kHz（-5dB） |
20Hz~90kHz（-4dB） |
| SNR |
≥120.5dB（A-weighted） |
≥123dB |
≥120.5dB |
≥122dB（dBA） |
| ≥118dB（over-ear headphone mode/A计权） |
| Output impedance |
≤2.3Ω（32Ω） |
≤2Ω |
＜2Ω |
≤3Ω |
| THD+N |
≤0.00075%（1kHz/32Ω） |
≤0.0007%（1kHz/32Ω） |
＜0.00146%（1kHz/32Ω） |
＜0.0006%（over-ear headphone mode/1kHz/300Ω） |
| CROSSTALK |
≥105.6dB（1kHz/32Ω） |
≥108dB（1kHz/32Ω） |
≥111dB（1kHz/32Ω） |
＞103dB（1kHz/33Ω） |
| ＞118dB（no load） |
| Noise floor |
≤5.2μV（A-weighted） |
≤7μV |
＜3μV |
＜3.8μV |
| ＜5.2μV（over-ear headphone mode） |
| Audio format support |
| Lossless |
DSD：DSD64/128/256（“.iso”,“.dsf”,“.dff”），DST iSO |
DSD：DSD64/128/256（“.iso”,“.dsf”,“.dff”），DST iSO |
DSD：DSD64/128/256（“.iso”,“.dsf”,“.dff”），DST iSO |
DSD：DSD64/128/256（“.iso”,“.dsf”,“.dff”），dst |
| DXD：352.8kHz/24bit |
DXD：352.8kHz/24bit |
DXD：352.8K/24bit |
DXD：352.9K |
| APE FAST/High/Normal：384kHz/24bit（MAX） |
APE FAST/High/Normal：384kHz/24bit（MAX） |
APE FAST/High/Normal：384kHz/24bit（MAX） |
APE FAST/High/Normal：384kHz/25bit（MAX） |
| APE Extra High：192kHz/24bit（MAX） |
APE Extra High：192kHz/24bit（MAX） |
APE Extra High：192kHz/24bit（MAX） |
APE Extra High：192kHz/25bit（MAX） |
| APE Insane：96kHz/24bit（MAX） |
APE Insane：96kHz/24bit（MAX） |
APE Insane：96kHz/24bit（MAX） |
APE Insane：96kHz/25bit（MAX） |
| Apple Lossless：384kHz/32bit（MAX） |
Apple Lossless：384kHz/32bit（MAX） |
Apple Lossless：384kHz/32bit（MAX） |
Apple Lossless：384kHz/33bit（MAX） |
| AIFF：384kHz/32bit（MAX） |
AIFF：384kHz/32bit（MAX） |
FLAC：384kHz/32bit（MAX） |
Apple Lossless：384kHz/33bit（MAX） |
| FLAC：384kHz/32bit（MAX） |
FLAC：384kHz/32bit（MAX） |
WAV：384kHz/32bit（MAX） |
FLAC：384kHz/33bit（MAX） |
| WAV：384kHz/32bit（MAX） |
WAV：384kHz/32bit（MAX） |
WMA LOSSLESS：96kHz/24bit（MAX） |
WAV：384kHz/33bit（MAX） |
|
WMA LOSSLESS：96kHz/24bit（MAX）
DTS: 192kHz/24bit（MAX）
MQA：Full Decoderer
|
WMA LOSSLESS：96kHz/24bit（MAX） |
|
WMA LOSSLESS：96kHz/25bit（MAX） |
| Lossy compression |
MP3，OGG，WMA，AAC, etc. |
MP3，OGG，WMA，AAC etc. |
MP3，OGG，WMA，AAC etc. |
MP4，OGG，WMA，AAC etc. |
