how does the fitness tracker know if i'm just in a slow moving car

chombiekay

macrumors member
Original poster
Jun 19, 2014
57
6
hi! i take the subway every day. often times this train moves slow, i can literally jog/run faster than it. how does my watch know not to take this into account as "exercise" when i'm on it?
 

MrUNIMOG

macrumors 6502a
Sep 23, 2014
638
414
Hamburg, Germany
hi! i take the subway every day. often times this train moves slow, i can literally jog/run faster than it. how does my watch know not to take this into account as "exercise" when i'm on it?
Because you're not actively moving. So as long as you don't manually start a walking, running or cycling workout, it won't mistake your train ride for exercise.
 

chombiekay

macrumors member
Original poster
Jun 19, 2014
57
6
Because you're not actively moving. So as long as you don't manually start a walking, running or cycling workout, it won't mistake your train ride for exercise.
many thanks for this answer. i didn't even think about that. does it also take your BPM into considration?
 

matrix07

macrumors 603
Jun 24, 2010
5,480
2,162
hi! i take the subway every day. often times this train moves slow, i can literally jog/run faster than it. how does my watch know not to take this into account as "exercise" when i'm on it?
Arm swing & your heart rate will tell.
 
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Dino F

macrumors 68040
Sep 16, 2010
3,064
1,051
Croydon, South London, UK
Because you're not actively moving. So as long as you don't manually start a walking, running or cycling workout, it won't mistake your train ride for exercise.
...I don't think this is correct.

It may not count it as exercise but for me, when I commute to work on the train, more often than not, I will get a message on my watch along the lines of '......only a short while to go before you close your exercise ring - a 5 minute walk should do it' and I stand on the train, but by the time I get off at my stop (without me physically moving), my exercise ring will have completed. More than likely, this is due to the vibrations from the train moving, which the watch assumes is me moving....
 

Newtons Apple

Suspended
Mar 12, 2014
22,757
15,225
Jacksonville, Florida
...I don't think this is correct.

It may not count it as exercise but for me, when I commute to work on the train, more often than not, I will get a message on my watch along the lines of '......only a short while to go before you close your exercise ring - a 5 minute walk should do it' and I stand on the train, but by the time I get off at my stop (without me physically moving), my exercise ring will have completed. More than likely, this is due to the vibrations from the train moving, which the watch assumes is me moving....
It should not work that way. I ride a golf cart but it does not fill my rings, only when I walk or run. You should get some steps while riding but it should not fill up your exercise ring.
 
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Nell

macrumors 6502a
Jun 25, 2012
563
249
London
I don’t get exercise credit when I’m on the train and I think my watch is generally in do not disturb mode because my phone thinks I’m driving!
 
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