750x1334 Mood"> Apr 2026

: Supports four main working modes: Android , Pure Music , USB DAC , and Bluetooth Receiving .

: Recent firmware updates have added features like Dynamic Range Enhancement (DRE) , customizable button functions, and visual elements like VU meters and spectrum support. Pros and Cons Pros : Vibrant, high-resolution bezel-less screen. Powerful balanced output for its size. Excellent value for money, often found for around $700. Cons : 750x1334 Mood">

: The inclusion of Android 13 allows for a smooth user interface and access to various streaming apps. : Supports four main working modes: Android ,

Battery life is considered average or "poor" by some critical listeners. The volume wheel can be overly sensitive. FiiO JM21 - Reviews - Head-Fi Powerful balanced output for its size

: Users on Head-Fi describe the sound as musical and natural, offering a lush and intimate listening experience. Software & Features

: The front is dominated by a vibrant 4.7-inch bezel-less IPS display with a resolution of 750 x 1334.