Android 13 Hi-Res music player

The JadeAudio/FiiO JM21 is a slim Android 13 Hi-Res music player built around a Snapdragon 680 platform and a fully balanced audio stage with dual Cirrus Logic CS43198 DACs. It is made for daily listening with streaming apps, local files, and reliable portable power—plus a bit of extra care for audio purity when you use third-party players or a USB DAC.

Snapdragon performance that stays out of the way

The JM21 uses a Snapdragon 680 built on a 6nm process with an 8-core Kryo 265 CPU up to 2.4GHz, which helps the player feel quick when you are browsing libraries, switching apps, or managing downloads. The efficient platform also supports long listening sessions without constantly thinking about battery.

Android 13 with the apps you actually use

The JM21 runs a customized Android 13 open-source system, giving you access to common streaming services and everyday audio tools. Install what you want—Spotify, Apple Music, and other apps—then control playback the same way you would on a phone, but focused on audio playback.

Dual CS43198 DACs with a balanced output stage

Inside is a fully balanced audio architecture using two Cirrus Logic CS43198 DACs and two SGM8262 op-amps. The balanced headphone output is rated up to 700mW + 700mW, which is useful if you rotate between sensitive IEMs and harder-to-drive over-ears and want headroom without hauling a separate amp.

Thin, light, and built for pockets

At 6.46 x 4.17 x 1.77 in (16.41 x 10.59 x 4.50 cm) package size and an item weight of 10.6 oz (300 g), the JM21 stays easy to carry. The player itself is described as 13mm thin and 156g (5.51 oz), which makes one-handed use feel natural when you are commuting, walking, or moving around the house.

Battery life that covers a full day of listening

FiiO quotes up to 12.5 hours of battery life, which fits a typical day—morning playlists, afternoon work, and evening listening without hunting for a charger. The JM21 uses a built-in lithium polymer battery, so you can treat it like a dedicated music device instead of sharing power with your phone.

Bit-perfect playback with DAPS, FPGA, and dual clocks

The JM21 includes FiiO’s DAPS (digital audio purification system), a fifth-generation FPGA, and custom dual femtosecond crystal oscillators. The goal is to keep the original sampling rate intact during local playback in apps such as FiiO Music and Apple Music, and also when sending audio out to an external USB DAC—helping avoid unwanted sample-rate conversion when you want lossless playback.

Product highlights

• Snapdragon 680 platform (6nm), 8-core Kryo 265 CPU up to 2.4GHz
  
• Customized Android 13 open-source system with app install support
  
• Dual Cirrus Logic CS43198 DACs with fully balanced audio architecture
  
• Balanced output power up to 700mW + 700mW
  
• SGM8262 op-amps for the analog stage
  
• FiiO DAPS digital audio purification system
  
• Fifth-generation FPGA + dual femtosecond crystal oscillators for sampling-rate integrity
  
• Up to 12.5 hours of battery life
  
• 13mm thin, 156g (5.51 oz) for easy pocket carry

Specs

• Model: F30511
  
• Operating system: Android 13
  
• DAC: Dual Cirrus Logic CS43198
  
• Output power: Up to 700mW + 700mW (balanced)
  
• Processor: Qualcomm Snapdragon 680, up to 2.4GHz
  
• Audio system: DAPS digital audio purification system, fifth-generation FPGA, dual
• femtosecond crystal oscillators
  
• Battery type: Lithium polymer (included)
  
• Package dimensions: 6.46 x 4.17 x 1.77 in (16.41 x 10.59 x 4.50 cm)
  
• Item weight: 10.6 oz (300 g)
  
• Manufacturer: JadeAudio
  
• ASIN: B0F6VR9TF2

What’s included

• JadeAudio/FiiO JM21 music player
  
• 1 lithium polymer battery (installed)