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Fonix One

Pre-order

Own 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.

  • Up to 2TB microSD
  • 16+ hours per charge
  • No subscriptions, no accounts
Drag to rotate · Pick a case colour

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

MP3 FLAC AAC M4A MP4 WAV Opus
The Fonix One player interfaceBrowsing the library by genreUploading music over Wi-Fi
The built-in web interface, over Wi-Fi

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

Display
2.8" touchscreen
Storage
Up to 2TB microSD
Battery
16+ hours, USB-C
Output
Bluetooth audio
Formats
MP3, FLAC, AAC, M4A, MP4, WAV, Opus
Management
Built-in Wi-Fi web interface
Accounts
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

Pre-order on fonix.one

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.

fonix.one