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Comparison MP3 Players

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FiiO JM21
FiiO M21
FiiO M17
HiBy R4
FiiO M27
FiiO M15S
FiiO JM21FiiO M21FiiO M17HiBy R4FiiO M27FiiO M15S
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TypeHi-fi playerHi-fi playerHi-fi playerHi-fi playerHi-fi playerHi-fi player
ОСAndroidAndroidAndroidAndroidAndroidAndroid
Built-in memory32 GB64 GB64 GB32 GB256 GB64 GB
Memory card typemicroSD/SDHC/SDXCmicroSDmicroSDmicroSDmicroSDmicroSD
Max. memory card size2000 GB2000 GB2000 GB2048 GB2000 GB2048 GB
Specs
DACCS43198 (4 pcs)ESS ES9018C2M (4 pcs)ESS ES9039SPRO x2
Sampling frequency768 kHz768 kHz768 kHz768 kHz768 kHz768 kHz
Bit depth32 bit32 bit32 bit32 bit32 bit32 bit
Frequency range20 – 80000 Hz20 – 85000 Hz5 – 80000 Hz20 – 85000 Hz
Signal to noise ratio126 dB122 dB126 dB122 dB
Power1400 mW950 mW3000 mW525 mW2650 mW1200 mW
Headphone impedance8 – 350 Ohm8 – 350 Ohm16 – 300 Ohm8 – 350 Ohm8 – 350 Ohm
Harmonic distortion coefficient0.0006 %0.0005 %0.0007 %0.007 %0.00029 %0.0005 %
Features
Audio formats supportMQA, ISO, DSF, DFF, DST, DXD, APE, ALAC, AIFF, FLAC, WAV, WMA, MP3, OGG, WMA, AACMQA, ISO, DSF, DFF, DST, DXD, APE, ALAC, AIFF, FLAC, WAV, WMA, MP3, OGG, WMA, AACMQA, ISO, DSF, DFF, DST, DXD, APE, ALAC, AIFF, FLAC, WAV, WMA, MP3, OGG, WMA, AACFLAC, WMA, WAV, ALAC, DSF, DSDIFF, MP3, OGGMQA, ISO, DSF, DFF, DST, DXD, APE, ALAC, AIFF, FLAC, WAV, WMA, MP3, OGG, WMA, AACMQA, ISO, DSF, DFF, DST, DXD, APE, ALAC, AIFF, FLAC, WAV, WMA, MP3, OGG, WMA, AAC
Codec support
aptX HD
AAC
LDAC
LHDC
aptX HD
AAC
LDAC
aptX Adaptive
AAC
LDAC
aptX
LDAC
aptX Adaptive
AAC
LDAC
LHDC
aptX Adaptive
AAC
LDAC
Features
DAC mode operation
equalizer
DAC mode operation
equalizer
DAC mode operation
DAC mode operation
equalizer
DAC mode operation
equalizer
DAC mode operation
equalizer
Connection
Wi-Fi
Bluetoothv 5.0+v 5.0v 5.0v 5.2v 5.0
Outputs
mini-Jack (3.5 mm)
Pentaconn (4.4mm)
mini-Jack (3.5 mm)
Pentaconn (4.4mm)
coaxial
micro-Jack (2.5mm)
mini-Jack (3.5 mm)
Pentaconn (4.4mm)
coaxial
mini-Jack (3.5 mm)
Pentaconn (4.4mm)
mini-Jack (3.5 mm)
Pentaconn (4.4mm)
coaxial
optic
micro-Jack (2.5mm)
mini-Jack (3.5 mm)
Pentaconn (4.4mm)
Screen
Screen
colour
4.7 "
1334x750 px
IPS
touch screen
colour
4.7 "
1334x750 px
touch screen
colour
5.99 "
1080x2160 px
IPS
touch screen
colour
4.7 "
720x1280 px
IPS
touch screen
colour
5.99 "
2160x1080 px
IPS
touch screen
colour
5.5 "
720x1440 px
IPS
touch screen
General
Battery capacity9200 mAh4500 mAh6200 mAh
Operating time (audio)12.5 h15 h10.6 h18 h9 h10.5 h
Charging time2 h3 h2 h3 h3.5 h
Fast chargeQuickChargeQuickCharge 4.0, PDQuickCharge 4.0, PDPD 2.0QuickCharge 4.0, PDQuick Charge 4.0
Charging connectorUSB-CUSB-CUSB-CUSB-CUSB-CUSB-C
Firmware update
Touch control
Materialmetalmetalmetalmetalmetalmetal
Size (HxWxT)120x68x13 mm121x68x17 mm156x88x28 mm129x68x18 mm157x58x28 mm140x80x18.9 mm
Weight156 g193 g610 g231 g556 g345 g
Color
Added to E-Catalogmarch 2025july 2025august 2023september 2024january 2026october 2023