(Telecompaper) LG Electronics is launching its first wearable fitness devices in May, the LG Lifeband Touch and Heart Rate Earphones. Both devices can wirelessly connect to most Android and iOS smartphones. The Lifeband Touch is a wristband with touch OLED display to track a range of fitness data and plan workouts. It is fitted with two sensors a triple-axis accelerometer and an altimeter to track the user's movements. A motion-sensing algorithm automatically turns on the display when the wearer rotates his wrist. When the Lifeband is connected to a smartphone, users can also receive alerts on the display of incoming calls and messages and access music playlists on their phones. The Lifeband works with LG's own Fitness app and other popular apps such as MyFitnessPal, Runkeeper and MapMyFitness. It will be available in a choice of three sizes. LG also introduced the Heart Rate Earphones, which provide heart rate data by measuring blood flow signals in the ear via PerformTek sensor technology. The Heart Rate Earphones can be used alone or with the LG Lifeband Touch. A separate clip-on medallion offers Bluetooth connectivity to send data to the Lifeband Touch or a compatible smartphone. When using the LG Fitness App, users can also receive audible status updates informing them of their heart rate and oxygen consumption levels in real time. The Lifeband Touch will launch first in the US on 18 May, and be rolled out in key markets in Asia and Europe in the following weeks.