If you find yourself at certain Starwood hotels in the next few months, you'll be able to enter your room with the tap of an iPhone or Apple Watch, touch the mirror for weather updates and even request a robot butler to bring you a toothbrush. At its Stamford, Connecticut-based headquarters, Starwood is hard at work testing concept rooms filled with smart technology that's already reached three of its chains: Four Points by Sheraton, boutique concept Aloft and its sustainable Elements brand.

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