1.5" HD LCD Touch Screen Display. Screen Resolution: 240 x 240 pixels. Built-in BT 4.0 Allows You to Connect to Your Smartphone or Other BT Enabled Devices. Compatible with Android & iPhone Applications. Make and Receive Phone Calls via BT. When You Are Performing any Activity, Rain or Shine You Smartwatch Keeps Going with You Because it is Water Resistant and Has an Impressive Sunlight Readable Display. Tracks Steps, Distance, Calories Burned and Active Minutes. Monitor How Long and Well You Sleep. Wake Up with a Silent Wake Up Alarm. If You Cant Find Your Phone, Your Smartwatch Can Send an Alert to Your Phone to Signal You During Search. Built-in Micro USB 2.0 Port. Built-in RAM Memory: 32MB. Built-in Flash Storage: 32MB. Built-in Microphone. Built-in Speaker. Rechargeable Lithium-ion polymer Battery (230mAh).