Smartphones and long rides: The Strategy

  • Creator
    Topic
  • #20551
    KiwiMike

    There’s a lot of discussion around smartphones vs. Garmins for long rides. In one corner, Garminados waffle about 15hr battery life, waterproofness and size, while in the geek corner Mobilistas tout cheap smartphones with a few extra batteries as the way to go, not doubling up on tech as the Garmin crowd carry mobiles anyway.

    I present proof positive that a smartphone – even one 4 years old – can do the job. This screenshot is 5 1/2hrs into a ‘ride’, recording with Strava and using Viewranger for navigation, at 25% battery left. Critically the Viewranger Trip screen has been on all the time, with the nav arrow and other information displayed – meaning it can do a ride of over 7 hours with the display on permanently. Brightness was turned down, but it was still quite visible. Also the phone was connected to 3UK the whole time, mobile data and WiFi turned off.

    Noting that if you set the screen to auto-off after say 15 seconds, you can wake it to check direction at an intersection, then it will go back to sleep automatically. This will dramatically improve battery life to about 12hrs in this case, as you see below screen power accounts for nearly half battery usage.

    So you have Strava logging, always-on navigation, plus can receive calls/SMS. With the option to turn on mobile data to check email if really needed.

    The phone in this case is a Sony Ericsson Xperia Arc, but for £40-ish you could have a Motorola Defy from eBay, rated IP67 waterproof and pretty shockproof to boot. Stem-mount it on £27-worth of Quadlock and you have a quarter-turn easy on-off solution that is weatherproof and can have its always-on runtime doubled to around 12hrs using £10 worth of extra battery. Or out to 24hrs if you have screen sleep enabled.

    If/when you do need to stop and swap batteries, a Strava TCX/GPX file can be joined using one of a few methods to give that all-important one long ride.

    The 4.4-star rated Viewranger app is free for Android and iOS. You can purchase Viewranger maps for less than half of the Garmin cost and the online route planning tool is genius. £90 gets you all of the UK (£199 from Garmin), or smaller bits are priced applicably less. Or you can download Openstreetmap / Opencyclemap tiles for free *from the app, on the mobile* and use them anywhere in the world. This can be done whilst on the road, no laptop needed – for example, using free Wifi in a café. Did this in Belgium last year- worked flawlessly.

    Hopefully this goes some way to clearing the air and giving people hope that quality, robust on-bike long-ride nav, logging and comms is perfectly do-able for less than £100.

Viewing 9 replies - 76 through 84 (of 84 total)
  • Author
    Replies
  • #770097
    0
    KiwiMike

    chokofingrz wrote:Yes, you

    chokofingrz wrote:
    Yes, you can do 6-7 hour rides using your smartphone of choice, but it’s still a pain managing the settings to keep it alive, and knowing the battery is going to get low. Not really viable for unsupported touring, so I’m going to get one of those Anker portable battery devices which holds enough for several full recharges. £30 on Amazon and more useful than a solar charger. Apparently Saxo-Tinkoff’s Chris Sørensen swears by them too.

    Why not 2-3 spare batteries? £10 for OEM ones. Using an external charger like the Anker means no IP rating and you have to work out how to mount it somehow with a cable going to the phone, whereas pop a new bty in whilst huddled in a bus shelter/under a tree and you’re off again for another 12hrs of pedaling.

    Re: managing settings, going into Airplane mode or even WiFi/Mobile Data off is the work of seconds.

    #770095
    0
    kamoshika

    For really long rides, has
    For really long rides, has anyone looked at the possibility of hooking a dynamo hub up to the appropriate cable to charge a smart phone? I think modern dynamos typically have a 6v, 3W output, so should be well capable of keeping a smartphone charged. Then you could ride indefinitely 😉

    Edit: went and had a look, and answered my own question: http://www.rosebikes.co.uk/article/supernova-the-plug-iii-usb-charger/aid:713880

    #770093
    0
    Chuck

    Re the Defy- I’ve got one
    Re the Defy- I’ve got one (well, just replaced actually) and it’s worth noting that if it’s even a bit sunny it’s very hard to actually see anything on it.

    #770091
    0
    chokofingrz

    Yes, you can do 6-7 hour
    Yes, you can do 6-7 hour rides using your smartphone of choice, but it’s still a pain managing the settings to keep it alive, and knowing the battery is going to get low. Not really viable for unsupported touring, so I’m going to get one of those Anker portable battery devices which holds enough for several full recharges. £30 on Amazon and more useful than a solar charger. Apparently Saxo-Tinkoff’s Chris Sørensen swears by them too.

    #770089
    0
    Shep73

    I like my Garmin for
    I like my Garmin for navigating new routes and always use it but I have never had 15 hours out of it. I actually find the battery life is around 8 hours but Garmin and other dedicated GPS do give a better satellite fix so are more accurate.
    The downside to the Garmins is the map image quality when zoomed in, the open maps are better (more of a satnav feel), just a shame they don’t do an explorer version. And the Memory Maps version is a better image as well so I can see why people use it on phones, especially with a bigger screen.

    #770087
    0
    ScottChegg

    my current set up is iphone 5
    my current set up is iphone 5 with wahoo rflkt, cadence/speed sensor and heart rate monitor all connected via bluetooth 4.0.
    I have the phone in a topeak drybag in back pocket running wahoo fitness app and although i have the screen off i dont turn off wifi or mobile data.
    This generally uses 12-14% battery per hour therefore i could probably ride 7-8 hours using this method.
    I think i could get nearer 10 hours if i turned off wifi and mobile data and all apps running in background that i dont need whilst out cycling.
    Not bad for a mobile……..

    #770085
    0
    KiwiMike

    Gareth W-R wrote:I found that

    Gareth W-R wrote:
    I found that when doing long rides (6-7 hours) I put my phone on airplane mode and Strava still works with battery to spare at the end!

    For sure. I can get 13hrs out of my iphone in airplane mode. Point being, most people like to be contactable out on the bike. With a properly waterproof phone mounted properly, you wouldn’t need to carry a second phone for emergencies.

    #770083
    0
    Gareth W-R

    I found that when doing long
    I found that when doing long rides (6-7 hours) I put my phone on airplane mode and Strava still works with battery to spare at the end!

    #770081
    0
    KiwiMike

    Proof
    Proof

Viewing 9 replies - 76 through 84 (of 84 total)
  • You must be logged in to reply to this topic.