Inconsistencies converting steps to miles

[J5158]

My steps:miles ratio is very skewed. 

• I use the Inspire HR with the most recent update and only for walking as I'm doing PT, no running/biking/swimming etc.
• I set it to the precalculated Fitbit stride determined by height/weight/gender.
• The device is new, not even a month of use yet.
• I've reset/restarted my device and uninstalled/reinstalled the app.

While it's been inconsistent from the beginning, this last week was enough to reach out to support. 

• 02/10   5,460 steps -> 1.46 miles
• 02/15   5,474 steps -> 2.18 miles

• 02/13   14,400 steps -> 5.41 miles
• 02/16   14,401 steps -> 5.58 miles

• 02/14   17,040 steps -> 5.72 miles
• 02/17   23,494 steps -> 5.76 miles

Some days I have similar steps and varying miles.. Some days it's same millage with a huge step gap. Wondering whether to return this device and go with something else.

[JohnnyRow]

2 questions:

Are you ever connected to phone's GPS?

Do you ever manually log an activity?

[J5158]

I have GPS enabled on the device but as most of my steps are on a machine during physical therapy sessions (treadmill/seated elliptical, etc) it doesn't have much distance to track. Purely going off of converting steps to miles. 

Also no, never add anything manually.

[JohnnyRow]

You might try turning GPS off to make sure it is not sometimes getting (very small) distance from GPS instead of calculating from step count.

[J5158]

In looking to turn off GPS as you suggest, I realize I was mistaken. All numbers provided have been without GPS active on the FitBit.

[J5158]

I've posted this problem here before, but never any answer.

I've updated, uninstalled & reinstalled, restarted device and turned off GPS.  The stride is automatically calculated by FitBit using personal info. Today I have about 4k steps so far and only .31 miles walked. 

Please enlighten me to a fix or I'll be returning and getting something more accurate from another company.

[SilviaFitbit]

@J5158 It's nice to see you on the Community. Thanks for taking the time to share the data that you're receiving with your Inspire HR. 

I appreciate the troubleshooting tried and for following the advice provided by @JohnnyRow. I've merged your post here to keep it organized. 

All devices with GPS sensors require a direct path to GPS satellites to calculate location. A weak GPS signal might affect the accuracy of your route and other activity data. Your device uses your step count to calculate distance until it finds a signal, so the total distance calculated for a workout may be slightly less accurate when GPS isn't available for the entire time. 

Before creating a case on your behalf with our Support team, I would like you to enter your stride length on your account and try again. Follow the tips mentioned in this article: How does my Fitbit device calculate my daily activity? 

I'll be around if you have any additional questions.