Samsung's Gear Fit is a smart band wearable device that is aimed towards "active consumers". This is the first fitness band to include a flexible OLED - a curved 1.84" (432x128) Super AMOLED one, in fact.
The Gear Fit includes four fitness monitors (pedometer, exercise, heart rate, and sleep) enabled by three sensors (accelerometer, gyro and hear rate) and can also show mobile phone notifications (messages, e-mails, calls, etc.). The Gear Fit includes a 210 mAh battery, which should be enough for 3 to 4 days. The Gear Fit is now shipping for $143.
1.84" (432x128) Curved Super AMOLED