WiPhone: An Open Source Phone That's Really Yours

The WiPhone is a hackable, modular mobile phone which makes HD voice calls for free over WiFi.

Now shipping. Order yours now!

Get WiPhone

First Class Expansion Capabilities

WiPhone is expandable through daughter boards. The whole back of the phone is a replaceable panel that accepts a standard 1.6mm thickness PCB, which you can use to add whatever functionality you like.

People Like The WiPhone

This is a great cross over between what people know (phones) and what people really want to do (hack).

Nathan Seidle

The WiPhone is a really rather neatly put together project.

Alasdair Allan

If you want a phone that respects your right to repair, this is the project to look at.

Brian Benchoff

So excited by this project I tried to make one myself.

Random Guy

Hack It Like It's Yours

WiPhone is built for hacking, not for some big corporation's bottom line. Complete disassembly in less than a minute, using only 6 screws. The operating system firmware is easily modified, and simple enough to be understood entirely by one motivated person.

Not only is WiPhone capable of completely free calling, it's also an open source, self-contained Arduino development platform. Unlike most other dev boards it comes in a nice package, with a battery, power supply, and on/off circuitry. Once your project is done, instead of an eyesore of tangled wires and stacked boards, it's compact and visually appealing.

A Phone You Can Own

(Not One That Owns You)

Modern smartphones are more and more a tool we don't own, but instead one we're only allowed to carry around. One that serves the interests of various tracking networks, corporate boards, and government organizations. You don't own it, it owns you. It tracks you, serves you ads, and sucks away your time with mindless dopamine hits. We want a phone that's back in our control, optimized for our convenience.


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Basic Edition

WiPhone Pro

The WiPhone comes in 2 styles and 2 colors. The Basic WiPhone has a polycarbonate frame, and the Pro version as a stylish anodized aluminum frame. Both versions are available with a clear or color front face.

(click to expand)


  • VoIP (WiFi) Phone
  • 2.4” screen (320 x 240)
  • 802.11 b/g/n WiFi
  • micro USB for charging, serial communication, and firmware updates
  • 3.5mm audio jack
  • Internal microSD slot
  • Size: 120mm x 50mm x 12.5mm
  • Weight: 80g
  • 700 mAh Battery, 8 hours talk/1 week standby time (estimated)
  • 25 button keypad, 4 reserved for user, all keys are user programmable
  • Espressif ESP32 based system, programmable in Arduino
  • Python for user applications*
  • 20 pin programmable header on back of phone
  • 16MB Flash
  • 700 mAh Battery
  • ESP32 Dual core running at 240 MHz
  • Wi-Fi b/g/n + BT/BLE Dual Mode (Bluetooth is not yet used in the software)
  • USB serial port for charging, debugging, and serial data transfer
  • Externally accessible headers for custom daughter boards, including UART, SPI, I2C, PWM, digital I/O, ADC functions
  • Size: 120mm x 50mm x 12.5mm
  • Weight: 80g
  • Polycarbonate case and screen
  • Silicone keypad, backlit
  • phone back can be replaced with a PCB to expand the hardware capabilities
  • Fully working VoIP phone, with calling, text messages, and contact library.
  • MicroPython for user applications*

*Python runs on a separate firmware image.

WiPhone: An Open Source Phone That's Really Yours

The WiPhone is a hackable, modular mobile phone which makes HD voice calls for free over WiFi.

Now shipping. Order yours now!

Get WiPhone