As a bushwalker, can you afford not to own a smartphone? Which smartphone apps can replace dedicated equipment? What are the limitations?
Over the last few years technology has made smartphones invaluable to bushwalkers, replacing many of the devices, which previously had to be bought and carried individually.
Probably the first device carried by bushwalkers to be incorporated into the iPhone was the still and movie camera. Today's smartphone has a high quality camera which can take video and stills, including panoramas, mark each with the location at which the photo was taken, and then upload it to the web using wifi or mobile (cellular) data.
Next, the GPS became available, allowing routes to be mapped live, waypoints determined and marked, and distances accurately determined. Recently, apps which allow the viewing of calibrated digital maps have become commonly available, and some apps now incorporate the navigation features found in a dedicated GPS. High resolution colour screens make viewing these maps and navigational features easy. Modern smartphones have built-in compasses which can be calibrated and are accurate enough for the day walker, but not accurate enough for bearings over long distances.
Then high quality heart rate sensors came on the market which could pair with a smartphone, initially using a "dongle" plugged into the earphone socket but more recently using low energy interference-free Bluetooth.
The next advance was the ability to measure heart rate variability (HRV) (see previous post), using the powerful analysis capabilities of modern smartphones. Initially measuring HRV was only possible with expensive laboratory based equipment, but soon Polar had incorporated this ability into some of their top-of-the-line wrist computers. In the last few years, this technology has migrated to the smart phone, allowing bushwalk training to be fine tuned.
Bush walkers visiting remote areas often feel the need to take emergency devices with them to obtain help if an emergency occurs. We are all familiar with personal location beacons (PLBs) which can transmit a message, including location, to an overhead satellite, and from there to emergency rescue services.
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Recently smartphone apps (GetHomeSafe) have become available which can send an SMS or email, if a bushwalker fails to return on time, without the need for any action by the "injured" or "lost" person or instantly in a critical emergency to a contact list or even rescue services directly, including the current location, participant details and a route plan. "You don’t need a working phone (be within range) or even to be be conscious for an alert to be sent."
Bush walkers on day walks and within range of a mobile tower, up to 70 km from a high enough vantage point, can add weather and tide apps and the ability to visualise routes or places in 3D using Google Earth.
We now have GPS, fitness, navigation, mapping, emergency notification and weather services available at low cost in the one device! The only problem is a lack of battery capacity, but even this can be overcome to some extent with a solar charger.
What is next?
How do you overcome these limitations?
Where will the future take us?
This article by Bush Walker is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
