There are times when having a backup plan is a good idea and there are many times where having a backup phone could come in very handy.
This is where the SpareOne Emergency Phone, which is just $60, could come in handy. It is a GSM cellular handset that uses just a single AA battery and includes one-button emergency dialing without a SIM card. It can provide the ability to send geo-locations in an emergency.
But it can also features nine speed dial buttons, so this could be an excellent backup phone for those who want to bring their SIM card and leave the more expensive smartphone in the car while hiking or heading to the beach. It even offers a built-in LED flash light that can come in hand in a pinch.