Washington, Sep 5 - Apple's iWatch is expected to come in two sizes, sport a flexible display with sapphire glass cover, and feature several health functions.

According to The Verge, the wearable is being called Apple's most ambitious project yet; the watch would have sensors capable of tracking a wearer's footsteps and heart rate, among other vital signs.

It is also reported that the watch would include NFC, a type of close-range, wireless communications system and with all those top-notch features, the watch is also said to use a wireless charger.

With NFC, the watch could be used for making mobile payments through a partnership with Visa, American Express, and MasterCard. (ANI)