JadeAudio/FiiO JM21 Android 13 Hi-Res Music Player MP3 with Snapdragon 680, Bluetooth WiFi USB DAC 12.5H Playtime (Black)
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AI Verdict
This is a 156g Android 13 Hi-Res player with a Snapdragon 680 and dual CS43198 DACs, delivering 700mW balanced output for driving demanding headphones.
This player is a strong fit for audiophiles who want a dedicated portable device with high-fidelity audio capabilities, including dual flagship DACs and a powerful 700mW balanced output, capable of driving a wide range of headphones. Its Android 13 system and Wi-Fi connectivity also make it suitable for those who want to stream music directly from popular services.
If you need even longer battery life or more internal storage out of the box, look for players with larger battery capacities or higher base internal storage (e.g., 64GB or 128GB).
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Pros
- The Snapdragon 680 processor, built on a 6nm process, provides smooth and seamless operation for the Android 13 system.
- Dual flagship Cirrus Logic CS43198 DACs and two SGM8262 operational amplifiers deliver a balanced output power of up to 700mW + 700mW, capable of driving large over-ear headphones.
- The custom Android 13 open-source system allows installation of streaming apps like Spotify and Apple Music, preserving original audio sampling rates with its DAPS system.
- Connectivity includes Bluetooth 5.0 with LDAC, aptX HD, and LHDC codecs, along with 2.4GHz/5GHz Wi-Fi and USB DAC functionality.
- Weighing 156g and 13mm thin, it offers comfortable one-handed use and portability.
- Supports microSD card expansion up to 2TB, providing extensive storage for music libraries beyond the internal 32GB ROM.
Cons
- Internal storage is limited to 32GB ROM, with only 22GB usable, requiring a microSD card for extensive music libraries.
- Some users report the build quality feels less premium compared to higher-end FiiO models.
- The 4.7-inch HD touchscreen, while sharp, might feel small for users accustomed to larger smartphone displays.
- While offering 12.5 hours of battery life, some users of previous versions found it 'mediocre to acceptable' for an Android DAP, though the current model claims improvements.
- The device's Android 13 base raises concerns about long-term app support and performance after several years.
Dimension Scores
The dual flagship Cirrus Logic CS43198 DACs and SGM8262 op-amps, combined with a DAPS system, ensure high-resolution, lossless audio quality and a balanced output.
It delivers a powerful 700mW + 700mW balanced output, capable of driving demanding headphones and providing ample volume.
Features Bluetooth 5.0 with LDAC, aptX HD, and LHDC, dual-band Wi-Fi, and USB DAC functionality, offering comprehensive wireless and wired options.
At 156g and 13mm thin, it's highly portable and comfortable for one-handed use, though some users note the build quality isn't as premium as higher-priced DAPs.
Best For
- Audiophiles seeking a portable player with high output power to drive a wide range of headphones, including large over-ear models.
- Users who want a dedicated music player that can also access streaming services like Spotify and Apple Music via Android 13 and Wi-Fi.
- Individuals needing a compact (156g, 13mm thin) device for high-resolution audio on the go, with up to 12.5 hours of playback.
- Those looking for a device that can function as a USB DAC for their computer, offering versatile connectivity options.
Not Recommended For
- Users prioritizing maximum internal storage without needing external microSD cards, due to the 22GB usable internal space.
- Budget-conscious buyers who might find the mid-range price point ($150-$299) too high for a dedicated music player, especially if they already own a smartphone with decent audio output.
- Individuals expecting the premium build materials and finish of higher-tier digital audio players.
Watch Out For
- The 32GB internal storage provides only 22GB of usable space, meaning you'll likely need to purchase a microSD card for any substantial music collection.
- While the product data lists weight as 10.6 ounces, the device itself is consistently described as 156g (approximately 5.5 ounces) in detailed specifications, which could lead to confusion about its actual heft.
- Some user feedback indicates the build quality feels less substantial when compared to more expensive FiiO models, which might disappoint those expecting a premium feel.
- Despite the 12.5-hour battery life, some users of similar Android DAPs have found this level of endurance 'mediocre' for extended use, especially when alternating between different outputs.
Full Specifications
| ASIN | B0F6VR9TF2 |
| Brand | JadeAudio |
| Color | Black |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Model Name | F30511 |
| Item Weight | 10.6 ounces |
| Screen Size | 4.7 Inches |
| Manufacturer | JadeAudio |
| Special Feature | Hi-Res Audio, Touch Screen |
| Item model number | F30511 |
| Compatible Devices | Headphone |
| Display Technology | LCD or IPS |
| Package Dimensions | 6.46 x 4.17 x 1.77 inches |
| Included Components | Cable |
| Connectivity Technology | Bluetooth, Wi-Fi |
| Memory Storage Capacity | 32 GB |
What Buyers Say
Users frequently highlight the JM21's ability to drive a wide range of headphones, including larger over-ear models, thanks to its powerful 700mW balanced output. The inclusion of a custom Android 13 system that supports popular streaming apps without compromising audio quality is also a recurring positive point. Many appreciate its compact size and light 156g weight, making it genuinely portable for daily use. While the sound quality is consistently praised for its clarity and detail, some observations point to the internal 22GB usable storage as a limitation for extensive local music collections.
“Okay, so I got this thing and it actually powers my big headphones, like, really well. The sound is super clear, but yeah, you definitely need an SD card because that built-in storage is a joke for my FLACs.”
Common Praise
- Drives Sennheiser HD6xx headphones well without needing EQ for sound.
- Functions effectively as both a portable media player and a USB DAC for computers.
- The included silicone case is a practical addition for protection.
- Sound quality is clean and refined, with good detail retrieval for its price.
- Responsive navigation and app usage due to the Snapdragon 680 processor.
- Offers multiple playback modes including Android, Pure Music, USB DAC, and Bluetooth receiving.
Common Complaints
- Internal storage of 32GB (22GB usable) is insufficient for large music libraries without a microSD card.
- Build quality is perceived as less premium when compared to more expensive FiiO models.
- Battery life, while stated at 12.5 hours, has been described as 'mediocre to acceptable' by some users of similar Android DAPs, especially with varied output use.
- Concerns exist about the longevity of app support and performance for an Android 13 device over several years.
Ownership Tips
- The device stays only mildly warm even during long listening sessions, indicating effective heat management.
- The 4.7-inch HD screen is sharp and colorful, performing better than expected for a budget DAP.
- The physical buttons for volume and playback are convenient for blind operation.
- The ability to use it as a Bluetooth receiver adds unexpected utility for connecting other devices.
Frequently Asked Questions
Can I install streaming apps like Spotify or Apple Music on the JM21?
Yes, the JadeAudio/FiiO JM21 runs on a custom Android 13 open-source system, allowing you to install popular streaming applications as desired.
What kind of headphones can the JM21 drive?
With dual CS43198 DACs and two SGM8262 op-amps delivering a 700mW + 700mW balanced output, the JM21 can effortlessly power a wide range of headphones, including large over-ear models.
How much storage does the JM21 have, and can it be expanded?
The JM21 has 32GB of internal ROM, with approximately 22GB usable. It supports microSD card expansion up to 2TB, allowing for extensive music libraries.
What is the battery life of the JM21?
The device offers up to 12.5 hours of battery life, ensuring extended listening sessions.
Does the JM21 support high-resolution audio codecs?
Yes, it features Bluetooth 5.0 with support for high-quality audio codecs like LDAC, aptX HD, and LHDC, ensuring superior wireless performance.
Buying Guide
When looking at a portable Hi-Res music player like this, you're essentially buying a dedicated audio computer. You need to think about how much music you'll store locally versus streaming, how powerful you need the audio output to be for your headphones, and if you're comfortable with an Android interface on a smaller screen. Don't just look at 'Hi-Res' – check the actual DACs and amplifier power.
DACs (Digital-to-Analog Converters)
Output Power (e.g., 700mW + 700mW)
Android OS & Processor
Alternatives
If this player doesn't fit, look for models with larger internal storage (e.g., 64GB or 128GB base), longer advertised battery life (15+ hours), or a larger screen size for a more smartphone-like experience.
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