Beartooth
As with any smartphone product being marketed for use in wilderness environments, a note of caution is necessary.<p>Rescue services have seen an increasing number of life-threatening situations caused by the unwise use of smartphones. Phones aren't sufficiently rugged and often lack user-replaceable batteries, so cannot be relied upon as a navigation tool or as a means of emergency communication.<p>If you're considering buying a product like this, think again. An FRS radio and a Garmin Etrex cost about the same, but are vastly better suited to the task. They are drop resistant, waterproof and will run on ordinary AA batteries.<p>If you are in a remote area, always carry a magnetic compass and paper map and ensure that you have the skills required to use them. Consider carrying distress flares, a signal mirror or a SPOT beacon.<p><a href="https://www.thebmc.co.uk/smartphone-apps-handle-with-care" rel="nofollow">https://www.thebmc.co.uk/smartphone-apps-handle-with-care</a><p><a href="http://www.bbc.co.uk/news/uk-scotland-highlands-islands-33801741" rel="nofollow">http://www.bbc.co.uk/news/uk-scotland-highlands-islands-3380...</a>