Yes, you read that correctly.  The Kérastase Hair Coach from L' Oréal is an internet connected hairbrush with an accelerometer and a gyroscope inside to measure the quality of your brush stokes through your hair and The Register reports it will start to vibrate if if thinks you are being too brusque.  It also has a microphone so it can listen to you brushing and offer "insights into manageability, frizziness, dryness, split ends and breakage".  The internet connection is used to track weather, to warn you about humidity and other supposedly traumatic conditions for your hair.  You should expect to see even stranger IoT products over the next few days.

"The annual godforsaken hypegasm that is the Consumer Electronics Show in Las Vegas has given an "innovation award" … to a Wi-Fi-connected microphone-fitted allegedly "smart" hairbrush."

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