When does PIE turn off automatically? Bagel Labs August 07, 2018 09:23 Updated Follow After two minutes of inactivity, PIE will automatically power off. Related articles What is the fastening gear? When do I use it? How long does the battery last? Can I measure anything other than waist circumference? Does PIE have an internal memory to save measurement data? Comments 0 comments Please sign in to leave a comment.