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GPS Battery Life v iPhone 5s

  • 16-03-2015 8:31pm
    #1
    Red Belly
    Registered Users Posts: 195 ✭✭


    I use an iPhone 5s with strava to track workouts. I'll be doing the marmotte in July and will need at least 12 hours battery life. I can get 4 hours out of the iPhone and use about 35% of a full charge while using Bluetooth to track heart rate. If I turn off the Bluetooth will I get 12hours of just GPS tracking?

    As you can probably tell I'm a bit OCD about tracking stuff, sort of a "if there is no GPS log of the workout it didn't really happen" - kind of insanity.

    I might stump up for a Garmin 510. Would that guarantee the battery life I'll need in July?

    rb


Comments

  • #2
    ford2600
    Closed Accounts Posts: 4,457 ✭✭✭ford2600


    Red Belly wrote: »
    I use an iPhone 5s with strava to track workouts. I'll be doing the marmotte in July and will need at least 12 hours battery life. I can get 4 hours out of the iPhone and use about 35% of a full charge while using Bluetooth to track heart rate. If I turn off the Bluetooth will I get 12hours of just GPS tracking?

    As you can probably tell I'm a bit OCD about tracking stuff, sort of a "if there is no GPS log of the workout it didn't really happen" - kind of insanity.

    I might stump up for a Garmin 510. Would that guarantee the battery life I'll need in July?

    rb

    Turn off data and bluetooth.

    I've done 250km rides with a Samsung S3. Friend regularly does 200km plus with iPhone.

    My Garmin 705 konks at 330km more or less.


  • #3
    Ole Rodrigo
    Closed Accounts Posts: 3,013 ✭✭✭Ole Rodrigo


    I'd defo consider a Garmin. Up in the mountains your device is more prone to elevation calculation errors. This is particularly the case with a phone/ app. A Garmin Edge 500 is perfectly adequate with a better battery life than the 510, and frequently found second hand on the adverts sub forum. Its the cheapest model with a bariometric altimeter.

    If you can pick up a second hand Edge 705 better still, although you might need to upgrade the battery to get some extra hours out of it for the Marmotte.

    http://gpstracklog.com/2012/12/all-about-barometric-altimeters.html


  • #4
    crosstownk
    Registered Users, Registered Users 2 Posts: 12,863 ✭✭✭✭crosstownk


    Ole Rodrigo wrote: »
    I'd defo consider a Garmin.

    ^^ This.

    The Garmin is a device dedicated to what you need and battery life is maximised to suit these needs. A phone has other tasks to tend to while you ride. You can turn off these tasks but it's battery life still won't be a patch on a Garmin.

    I don't think my phone (iPhone 5) would last anywhere near 4 hours no matter how I configure it to save battery.
    Untitled Image




  • #5
    Darkglasses
    Registered Users, Registered Users 2 Posts: 14,526 ✭✭✭✭Darkglasses


    IPhone batteries never seem to last as long as Samsungs or others, i would definitely bet against it. Plus a Garmin might be a good investment in the long run.

    You could test the iPhone battery by leaving strava running all day while you are at work or something.


  • #6
    Wishbone Ash
    Registered Users, Registered Users 2 Posts: 25,012 ✭✭✭✭Wishbone Ash


    The battery life of my Garmin 500 has deteriorated over time. I did a 280k recently and the battery had 2% life remaining even though I switched off all alerts, light etc. A few months previously I did a 300+ and it had 22% remaining and that was without switching off alerts, light etc.

    I have since bought a Gomadic to supplement it for Audax.


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  • #7
    crosstownk
    Registered Users, Registered Users 2 Posts: 12,863 ✭✭✭✭crosstownk


    Wishbone Ash wrote: »
    The battery life of my Garmin 500 has deteriorated over time. I did a 280k recently and the battery had 2% life remaining even though I switched off all alerts, light etc. A few months previously I did a 300+ and it had 22% remaining and that was without switching off alerts, light etc.

    Maybe you're just getting slower......... :D
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