White canes have been the primary tool for people with visual impairments for decades, but the WeWALK cane attachment uses modern technology to make that tool something befitting of the 21st century. The smart device attaches to the top of a white cane and brings technology to the otherwise analog tool, helping to improve the accessibility of the world at large.
The biggest issue with white canes as they've existed in the past is that they can only reliably help people with visual impairments to spot obstacles more or less at ground level. WeWALK uses ultrasonic sensors to detect objects at chest level, providing haptic and aural feedback alerts. The device is also open source, so designers and developers around the world can help to contribute to its functionality.