Sony , Pebble , I 'm Watch and other manufacturers already have smartwatches on the market . Samsung expected to announce wristwatch-sized smartphone September 4 . The company is also working on a new version of its Galaxy S III smartphone, which will be unveiled at the same time as Samsung's latest flagship phone. All the major tech companies are racing to release wearable computing devices .
Samsung expected to announce wristwatch-sized smartphone September 4 . The company is also working on a new version of its Galaxy S III smartphone, which will be unveiled at the same time as Samsung's latest flagship phone. All the major tech companies are racing to release wearable computing devices .