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DUCKIJO SparkPoints: (9,900)
Fitness Minutes: (13,399)
Posts: 166
10/14/13 1:42 P

wi-fi signals can interfere with the GPS on phones.

LEC358 SparkPoints: (11,135)
Fitness Minutes: (6,555)
Posts: 2,744
10/14/13 1:21 P

Theory 1: Your fitbit isn't calibrated to your steps.

Theory 2: Something went haywire with the phone GPS (Happens, a friend of mine finished a marathon and her GPS watch said she ran 27.5 miles when the marathon was certified as 26.2. Buildings and trees can interfere with the GPS signal)

Option 1: Use google maps/google earth/mapmyrun/etc to map out your route and get the distance that way.

Option 2: Split the difference between the 2 numbers and call it a day.

LILCHUBNER SparkPoints: (55,759)
Fitness Minutes: (104,038)
Posts: 78
10/14/13 1:08 P

I went for a walk this morning with a friend. She had her iPhone and tracked our route and I had my fitbit zip. The iPhone said we walked 2.64 miles while my fitbit read only 1.96 miles. I can only assume (uh oh) that the iPhone is accurate because it is using gps to track us. Any thoughts?

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