Developer Kevin Noki has introduced the ADHD One, a minimalist handset designed to minimize digital distractions. The device is limited to basic calling functions, including storing contacts and managing incoming calls. It features an OLED display, a speaker, a microphone, and a USB-C charging port.

The current iteration lacks a cellular module and relies on a Bluetooth connection to a primary smartphone. Consequently, the device only functions when in close proximity to the host phone. Noki is currently developing a successor that will include an integrated 4G modem and a dedicated IMEI number for standalone network access.

The ADHD One is not sold as a pre-assembled unit. Users must purchase the STL files for 3D printing the chassis, a component list, and the firmware from the developer's website for $35. All electronic hardware must be sourced and assembled independently by the user.