Fonix One
Pre-orderOwn your music again.
Fonix One is a music player that plays your music. Load a microSD card, or upload over Wi-Fi through the player's own web interface, and listen. No subscriptions, no algorithms, no accounts, and nothing between you and a library you actually own.
Your library, your files
Drag music on over Wi-Fi. Browse it however you like.
The player hosts its own web interface, so loading it up means opening a browser on the same network, no desktop app, no sync tool, no account in between you and a folder of files.
Plays


Why it exists
No subscriptions. No algorithms. No distractions.
Just your music, on a device that plays it, and keeps playing it when a catalogue deal expires or the Wi-Fi goes down.
01
Your library, not a licence
Files on a card you own. Nothing disappears because a catalogue deal expired.
02
Wi-Fi web interface
Manage the library from any browser on your network: upload, browse and organise without installing anything.
03
Lossless where it counts
FLAC and WAV alongside the lossy formats, decoded by custom decoders written for the ESP32 platform.
04
A screen worth having
A 2.8-inch touchscreen with album art and visualizers, so you can see what's playing without pulling out a phone.
05
Bluetooth to anything
Pairs with speakers, headphones and earbuds. The player is the source; the sound system is yours to pick.
06
Build it yourself if you'd rather
The firmware is free for DIY builders on ESP32 hardware, with premium features activated for a one-off $12.
The hardware
Pocket-sized, and built to be lived with
A 2.8-inch touchscreen with album art and visualizers, sixteen hours of playback per charge, and up to two terabytes of storage on a card you can swap yourself. It charges over USB-C and sends audio out over Bluetooth to whatever you already listen on.
The whole thing measures 63 × 90 × 15mm around a 1200mAh cell, in a case that's 3D-printed — which is why the eight colours in the hero are a starting point rather than the whole catalogue.
The decoders are written specifically for the ESP32 platform, which is how a device this size handles FLAC without complaint.
Hardware
- 2.8" touchscreen
- Up to 2TB microSD
- 16+ hours, USB-C
- Bluetooth audio
- MP3, FLAC, AAC, M4A, MP4, WAV, Opus
- Built-in Wi-Fi web interface
- None required
Pricing
One price. Or build your own.
Fonix One
$99
USD, including device, 32GB microSD, battery, case and activated software
DIY firmware
Free
Build it on your own ESP32 hardware
DIY premium
$12
One-off, unlocks premium features on a DIY build
One price, one device, no subscription attached to it.
Own your music again.
Fonix One is open for pre-order now. Full specifications, photos and ordering are on the product site.
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