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FiiO M21 – Android 13 Portable Hi-Res Music Player with Quad DAC

FiiO M21 – Android 13 Portable Hi-Res Music Player with Quad DAC

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FiiO M21 Portable High-Resolution Android Music Player Flagship performance in the palm of your hand. The FiiO M21 redefines what... Read more

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    Description

    FiiO M21 Portable High-Resolution Android Music Player

    Flagship performance in the palm of your hand. The FiiO M21 redefines what a portable player can do. By combining a compact, hand-friendly design with a powerful Quad-DAC architecture, the M21 offers the perfect balance of portability, battery life, and audiophile-grade sound quality. Whether on your commute or at your desk, enjoy a smooth, lag-free experience powered by the latest Snapdragon 680 processor.

    Quad-Core DAC Architecture for Pure Sound

    4x Cirrus Logic CS43198 DACs

    The M21 sets a new standard in its class by utilizing four high-performance CS43198 DAC chips. This symmetrical Quad-DAC matrix ensures ultra-low distortion and a remarkably high Signal-to-Noise Ratio (SNR). The result is a sound signature that is musically rich, detailed, and free of background noise, even with sensitive In-Ear Monitors (IEMs).

    Smooth & Modern Android 13 Experience

    Powered by the efficient 6nm Qualcomm Snapdragon 680 SoC and 4GB of RAM, the M21 delivers a smartphone-like user experience. Navigate through your favorite streaming apps like Tidal, Apple Music, and Spotify with zero lag on the vibrant 4.7-inch HD touchscreen.

    Desktop-Level Power in a Portable Body

    Dual USB-C Ports & Desktop Mode

    Inheriting the "Desktop Mode" feature from FiiO’s flagship models, the M21 features two independent USB-C ports. One is dedicated to data/charging, while the "POWER IN" port allows you to connect an external power source. This bypasses the battery completely, allowing the M21 to function as a high-performance desktop source without degrading battery health.

    High Power Output

    Don't let the size fool you. In "Super High Gain" mode (via balanced output), the M21 unleashes up to 950mW per channel (32Ω). This provides ample power to drive full-size headphones with authority, making it one of the most powerful players in its size category.

    Technical Specifications

    Feature Detailed Specification
    SoC (Processor) Qualcomm Snapdragon 680 (6nm)
    DAC Chipset 4 x Cirrus Logic CS43198
    Operating System Android 13 (Open OS)
    Screen 4.7-inch HD (750 x 1334) Touchscreen
    Max Output Power ≥950mW + 950mW (32Ω Balanced)
    Outputs 3.5mm (PO/LO/SPDIF), 4.4mm Balanced (PO/LO)
    Battery Life Approx. 15 Hours (SE) / 12.5 Hours (Balanced)
    Memory 4GB RAM + 64GB ROM (Expandable via MicroSD up to 2TB)
    USB Ports Type-C USB 3.0 (Data/Charge) + Type-C Power In
    Dimensions / Weight 121 x 68 x 17mm / Approx. 193g

    Why Choose the FiiO M21?

    • Perfectly Pocketable: Weighing only 193g with a slim profile, it fits easily into any pocket, unlike bulky flagship bricks.

    • Global MQA Support: Full 8x MQA unfolding is supported across third-party apps, ensuring studio-quality streaming.

    • Bi-Directional Bluetooth: Acts as both a high-res Bluetooth transmitter (LDAC/aptX HD) for your wireless headphones and a Bluetooth receiver for streaming from your phone.

    • FiiO Digital Audio Center (D.A.P): Features FiiO’s self-developed digital audio purification technology to bypass Android's sample rate conversion (SRC) for bit-perfect playback global-wide.

    Frequently Asked Questions

    Does the FiiO M21 have Google Play Store?

    Yes. The M21 runs on an open Android 13 system with the Google Play Store pre-installed, allowing you to download any music streaming or utility app you need.

    What is the benefit of the second USB port?

    The independent POWER IN port allows you to power the device from a wall charger or power bank without using the M21's internal battery. This activates the "Desktop Mode," enabling higher power output while keeping the device cooler and extending battery lifespan.

    Does it support 2TB SD cards?

    Yes, the M21 has a dedicated MicroSD card slot that supports cards up to 2TB, allowing you to carry a massive lossless library offline.

    Specifications

    • Weight: 200gr
    • Usage: Indoor & outdoor

    Pros and cons

    • Sustainably produced
    • Ideal for everyday use
    • May discolor in direct sunlight
    • Banner image for: <h1>M21</h1>

      M21

      Portable High-Res Lossless Music Player

      New octa-core 6nm Snapdragon 680 | Android 13 | 4x CS43198 DACs

      Fully balanced 2-stage amplifications | Dual Type-C ports | Low jitter coaxial output

      Desktop/Portable dual power supply modes | 950mW high output power

      4.7-inch compact HD screen | 3.5mm+4.4mm headphone/LO dual output

      Retro cassette-style protective case



    • Banner image for: <h1>A “Hearty” Benchmark</h1><h1>New Paradigm<br/><br/></h1>

      A “Hearty” Benchmark

      New Paradigm

      The M21 redefines the entry-level class

      with its flagship lineage,

      Its internal and external "hearts" are

      full of"heart" in providing you with enjoyment.

      Its compact screen and class-defying

      performance are a massive step forward,

      Aiming to be a benchmark for an entirelynew generation.

    • Banner image for: <h1>Flagship SoC</h1><h1>A new entry-level benchmark<br/><br/><br/></h1>

      Flagship SoC

      A new entry-level benchmark


      The Qualcomm Snapdragon 680 has superior performance with

      less power consumption than the SoCs used by players in the

      same class. It provides a smooth experience with Android 13.




    <h2><br/><br/></h2>



    <p>4×CS43198</p><h1>Full of “hearty” power<br/><br/></h1>

    4×CS43198

    Full of “hearty” power

    The four DAC chips allow for an eight-channel fully

    differential output design, fully unleashing the potential of

    headphones with class-defying dynamic performance and

    high anti-interference capabilities. The headphone amplifier

    section adopts a two-stage circuit design: the first stage is

    responsible for voltage amplification, while the second

    stage handles current expansion – all ensuring purer sound

    with rich detail.

    Patented desktop mode

    Battery protection expert

    Desktop mode makes an appearance on an entry-level FIIO player for the first time. When desktop mode is enabled, the M21 is completely powered by an external power supply. The built-in battery is neither charged nor discharged, allowing you to use the player safely on the desktop without degrading its battery.Patent number: ZL202321946664.8

    • Banner image for: <h1><br/><br/></h1>





    • Banner image for: <h1>Portable/desktop dual power</h1><h1>supply modes</h1><h1>A jump in performance<br/><br/></h1>

      Portable/desktop dual power

      supply modes

      A jump in performance

      In portable mode, it operates with standard voltage power supply.

      When using the external power "Super high gain" mode, the player

      automatically switches to using a high- voltage power supply

      with 21Vpp (30Ω) peak drive voltage and 950mW (32Ω) massive

      output power. This delivers desktop-level power output,

      making the player a better fit with a wider range of

      earbuds or headphones for a truly extraordinary auditory feast.





    • Banner image for: <h1>Go back to the Walkman</h1><h1>era</h1><h1>With just one touch</h1>

      Go back to the Walkman

      era

      With just one touch

      The custom cassette-style protective case* paired with an

      exclusive retro UI and tailored vintage sound effects all take

      you on a nostalgic journey back to the Walkman era...

      Remove the protective case to seamlessly switch back to the

      original system, giving you the flexibility to use it how you




    • Banner image for: <h1>True quality</h1><h1>Inside and out<br/><br/></h1>

      True quality

      Inside and out

      The fully aluminum alloy body with an AG frosted glass

      back offers a delicate texture and comfortable grip.

      The screen features an oleophobic coating that significantly

      reduces fingerprints and smudges, making for smoother

      touch operation.



    • Banner image for: <h1>Digital and analog partition shielding</h1><h1>Purely heavenly sound<br/><br/></h1>

      Digital and analog partition shielding

      Purely heavenly sound

      The digital and headphone amplifier sections exist in

      separate partitions and each is equipped with independent

      shielding covers for isolation. This not only further reduces

      signal crosstalk but also enables efficient heat dissipation,

      delivering purer sound.




    • Banner image for: <h1>Flagship-grade power<br/></h1>

      Flagship-grade power

      There are separate power supply paths for the

      digital and analog circuits, which effectively reduce

      crosstalk between the two. The result is more

      precise digital processing, purer analog output, and

      enhanced driving power. The analog circuit is

      further subdivided into multiple independent power

      supplies for components such as the DAC and

      headphone amplifier. This clean and robust power

      delivery enhances the dynamic range and leads to

      greater reproduction of details in the audio – for a

      more refined and natural sound.




    • Banner image for: <h1>High-end HiFi Parts</h1><h1>For better sound<br/><br/></h1>

      High-end HiFi Parts

      For better sound

      In the M21's audio circuit are high-precision thin-film

      resistors and low-temperature-drift capacitors that ensurere

      fined and stable sound quality - specifically the greate

      rconsistency between the left and right channels and across

      all frequency ranges. Additionally, fine circuits such as the

      DAC and headphone amplifier are equipped with over 10

      low-impedance, high-capacity tantalum capacitors. These

      provide abundant energy reserves and a robust power

      supply for more powerful, dynamic sound.






    • Banner image for: <h1>Global audio optimization<br/></h1>

      Global audio optimization

      5th-gen FPGA + dual custom femtosecond crystal oscillatorsFIIO developed a custom crystal oscillator specifically for the M21, which has been carefully selected to meet femtosecond-level standards, in order to ensure consistency and stability in its output. With a high-precision, low-jitter unified clock source, it accurately matches PCM and DSD audio at various sampling rates, ensuring precise reproduction of digital audio signals.






    Versatile connectivity

    High-performance output

    Analog Output

    3.5mm+4.4mm headphone outputs: Connect to headphones

    3.5mm+4.4mm line outputs:

    The independent line amplification circuits allow you to

    connect to active speakers or external amplifiers.


    <h2>Digital Output</h2>

    Digital Output

    SPDIF output: The low-jitter coaxial output is comparable to that of pro

    equipment, with the jitter reduced by 70% and achieving high performance

    when connected to an external high-end audio DAC.



    <h2>Coaxial Output Circuit Architecture</h2>

    Coaxial Output Circuit Architecture





    <h2>USB Audio output: </h2>

    USB Audio output:

    Connect to an external audio DAC

    and instantly turn it into a streaming jukebox.







    • Banner image for: <h1>15h long battery life</h1><h1>Exploring the world of music<br/><br/></h1>

      15h long battery life

      Exploring the world of music

      The M21's 4000mAh high-voltage battery provides up

      to 15 hours of ultra-long battery life, effortlessly

      providing the energy for extended listening sessions

      when commuting or traveling, allowing you to fully

      immerse yourself in the world of music. It also

      supports 20W PD fast charging, enabling quick

      recharges even during short breaks.

    • Banner image for: <h1>Buttons and ports Labeled</h1>

      Buttons and ports Labeled

      ① Display/② Indicator light/③ Power/lock key/④ Volume up key

      ⑤ Volume minus key/⑥ Multi-function key/⑦ Machine mode switch/

      ⑧ HOLD switch/⑨ 4.4mm balanced headphone out/line out

      ⑩ 3.5mm headphone out/line out/coaxial out

      ⑪ MicroSD card slot/⑫ Type-C data/charging port

      ⑬ Type-C charging/power supply port

      ⑭ Glass back cover/⑮ Aluminum alloy Mid-frame

      ⑯ Next track/⑰ Play/Pause/⑱ Previous track




    • Banner image for: <p>Packing List</p>

      Packing List

      ①M21 * 1

      ②Tempered film screen protector (pre-installed at factory)1

      ③ Protective case1

      ④ Warranty card *1

      ⑤ Quick Start Guide * 1

      ⑥ USB data cable * 1

      ⑦ GPL V2 instruction manual *1

      Basic specifications and parameters

      Basic Specifications

      Color: Titanium gold,Dark blue

      Dimensions: About 68mm x 121mm x 17mm

      Weight: About 193g

      Hardware configurations

      SoC: Snapdragon 680

      OS: Android13

      DAC: CS431984

      Display: 4.7-inch (750x1334) fully laminated screen

      Battery capacity: 4000mAh

      Charging: Supports PD2.0 and PD3.0 PPS fast charging

      Battery life: 15h single-ended, 12.5h balanced

      RAM: 4GB

      • Internal storage/available capacity: 64GB/about 52GB

        Storage expansion: MicroSD card, supports 2TB

        Headphone outputs: Single-ended 3.5mm PO/LO/SPDIF + Balanced 4.4mm PO/LO

        USB interfaces: Type-C USB3.01 (charging/data transmission)+ Type-C POWER IN*1

        (charging/independent power supply)

        Bluetooth Specifications

        Bluetooth version: 5.0

        Bluetooth Transmitter: AAC/SBC/aptX/aptX HD/LDAC/LHDC

        Bluetooth reception: SBC/AAC/LDAC

        Headphone outputs

        Output power 1: L + R ≥ 950mW +950mW(32Ω/THD + N<1%/balanced/Super high gain mode)

        Output power 2: L + R ≥ 185mW +185mW(300 Ω/THD + N<1%/balanced/Super high gain mode)

        Output power 3: L + R ≥ 405mW +405mW(32Ω/THD + N<1%/single-ended/Super high gain mode)

        Output power 4: L + R ≥ 45mW +45mW(300 Ω/THD + N<1%/single-ended/Super high gain mode)

        Output power 5: L + R ≥ 720mW +720mW(32Ω/THD + N<1%/balanced/High gain)

        Output power 6: L + R ≥ 290mW +290mW(32Ω/THD + N<1%/single-ended/High gain)

        SNR: ≥ 126dB (A-weighted)

        Bottom noise: <1.6uV(A weight)

        Output impedance: <1Ω

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