TX-OLED With the addition of the OLED display screen, it can display the current time, steps, heart rate, and calories. Just tapping the round button and you can easy to see the clear data. And there are four different modes - Walking Running Spinning, and Cycling. Also, when it is not onvenient for touch operation raise your wrist the TX-OLED will automatically display the current time, which is easy and convenient. Also, the display is very clear under the sun or at the insufficient lighting place. Moreover, its low power consumption can give you enough endurance to track your activity As you'll see, there are several benefits to adding a separate monitor to your fitness accessories.