Apple devices with the M7 or M8 coprocessor (iPhone 5s, iPhone 6, iPhone 6+, iPad Air, iPad Air 2, and new iPad Mini) support motion tracking. This is done very efficiently with little effect on battery life or processor utilization.

Day One iOS 1.12 uses this new device capability to record the following data:

  • Motion activity when creating an entry. Whenever you create a new entry, an icon representing your activity will be automatically added. For devices that don't have the M7 or M8 chip, users can manually choose the appropriate icon. Tapping the icon in either read or edit mode will display a menu to change your activity
  • Step count. (NOTE: This is supported on iPhone 5s, 6, and 6 Plus only. It is not supported on other M7- or M8-equipped devices as of this date, because Apple has not enabled step-counting on those devices.) Please be sure you have Day One enabled in Settings > Privacy > Motion Activity. Tapping the step count icon in the edit menu will add the count of steps taken up to the creation of the entry. At this point, if you wish to have the total count for a day, you must create an entry at the end of the day.

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