Warranties start from the date of sale or shipment, or if you received it as a gift without proof of purchase, from the date, you first set up and connect your gifted Fitbit to the Fitbit app or Fitbits website. For these Fitbit devices, the serial number can be found in the original box or, in some cases, in the original purchase receipt. Thank you for signing up to iMore. To sign-up for Student Plans, you can be any type of student, from middle school to high school, including incoming college student, current college student, or recent graduate. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/10\/Remove-Scratches-on-a-FitBit-Step-1.jpg\/v4-460px-Remove-Scratches-on-a-FitBit-Step-1.jpg","bigUrl":"\/images\/thumb\/1\/10\/Remove-Scratches-on-a-FitBit-Step-1.jpg\/aid6725396-v4-728px-Remove-Scratches-on-a-FitBit-Step-1.jpg","smallWidth":460,"smallHeight":334,"bigWidth":728,"bigHeight":529,"licensing":"