India moves into the wearable tech game with shoes that show you the way

"Wizard of Oz" heroine Dorothy only had to click her ruby red slippers together and they would spirit her home to Kansas. Now, an Indian high-tech start-up is promising to do the same in real life with a new, GPS-enabled smart sports shoe that vibrates to give the wearer directions.

The fiery red sneakers, which will also count the number of steps taken, distance travelled and calories burned, will go on sale in September under the name LeChal, which means "take me along" in Hindi. The shoes come with a detachable Bluetooth transceiver that links to a smartphone app to direct the wearer using Google maps, sending a vibrating signal to indicate a left or right turn.