Calibration of Apple watch ?

Discussion in 'Apple Watch' started by Teddysjam, Dec 22, 2015.

  1. Teddysjam macrumors member

    Joined:
    Jul 19, 2014
    #1
    I bought Apple watch like a month ago I always run on a treadmill never thought about calibrateing watch till now I would always use indoor run on workout app. But today I decided to run outside 20mins like 2.25 miles so I hit outdoor run got the message about running 20 mins to help calculate everything better. Long story short since I ran outside and saved workout will this help my indoor runs be more accurate or being better to accurate now that I've done this.
     
  2. Julien macrumors G3

    Julien

    Joined:
    Jun 30, 2007
    Location:
    Atlanta
  3. TxWatch macrumors 6502

    TxWatch

    Joined:
    Nov 30, 2015
    Location:
    Texas
    #3
    Sorry to disagree with the post above, but no, your accuracy will not change.

    I have tried to calibrate my Watch multiple times using different versions of Watch OS and calibration does not work. With Watch OS 2, they use an average stride length which is longer than most people. This means the Watch calculates a longer distance when used without the accuracy of the phone's GPS. I do not run on a treadmill, but it definitely does not work for Outdoor Runs.

    In my case, Watch OS 2.0.1 was off by a factor of 1.25 (7 miles run is recorded at 8.75 miles) and Watch OS 2.1 is off by a factor of 1.3 (7 mile run is recorded at 9.1 miles). This was before and after "calibrating" the Watch for 120 minutes, 14 miles and over 22,000+ steps.

    I hope they either fix the calibration or allow us to manually enter our running and walking stride length in a future update of Watch OS.

    TxWatch
     
  4. BlueMoon63 macrumors 68000

    Joined:
    Mar 30, 2015
    #4
    I must say first that I run the same route almost all the time and for weeks I brought my phone and calibrated over and over again. I would walk, run, jog, HIIT and the complete cycle with the phone and watch was 1.78 to 1.81 in the open woods and trails. clear sky's above me all the time. Some gills and declines and large round-abouts. Same distance. Each and every time on this phone and watch calibration. All in all, I calibrated 20+ times at various speeds on the same distance and never varied beyond 1.78 and 1.81 miles. Frankly the difference was the drifts around the corners when running fast versus walking the same turns.

    Month later,'same walk or run or jug or HIIT keeps coming back with 1.75-1.8 range in 16-18 minutes. Always very very close.

    I put on the watch and plug in my bests Bluetooth in-ear headphones and do an outside 5k without my phone and love having just my watch and Bluetooth earbuds that don't come out - shorts and T and Merrel no support shoes and my watch comes in with 3.05 to 3.12 each of the 5 times I have tried.

    It pays to calibrate over and over when you have the time. As for the treadmill, it would take more calibration of the machine but never can be the same as the ground outside won't reduce your friction and give you a boost with each step.

    If you bed super accurate with gps
    Built-in and you don't mind giant devices on your wrist for $600 and then wired headphones or no headphones, go for. If you are a serious trainer the AW isn't ready.

    Watch 2 with GPS will sell others but probably not me because my competing times are done. I more apps for fitness, those other sensors that Microsoft was able to add and watch faces along this line with complications around the edges. Center the watch and add complications matching color schemes that can be change.

    Sell watch faces for $1-$3 and if they look good, Apple can line their pocketbooks with $30-$40 mm from all of us with no fee to developers. <end rate>

    I love my SS and 7 bands.
     

    Attached Files:

  5. TxWatch macrumors 6502

    TxWatch

    Joined:
    Nov 30, 2015
    Location:
    Texas
    #5
    I run the same 7 mile route, as well. I prefer not to carry my iPhone 6P because it is too big to be comfortable. I have tried all of the suggestions to calibrate my Watch more than six times at 60 min each run.

    When calibrating, I run outside with my iPhone in an armband with perfectly clear skies. My run distance is within 1/10 of a mile over the total distance, so I know the phones GPS is working when I use it.

    You are probably close to the average stride length they use for the Watch, so your distance is more accurate.

    TxWatch
     
  6. Newtons Apple macrumors Pentium

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #6
    It would be nice if the AW2 had built in GPS but due to the power required, I am having my doubts. It would be nice if Apple updated it's AW software to allow the AW to use the iPhone's GPS data for more than just calibration.
     

Share This Page