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SpareOne Plus runs on a single AA battery

Where the SpareOne Plus display should be is where its single AA battery can keep the emergency smartphone "live" for up to 15 years. The big red button dials emergency services, but you can dial individual numbers as well.

$30.90 at Amazon
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Caption:Photo:Sarah Tew/CNET
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Ready for anything

The SpareOne Plus has a lot of helpful tools, including a SIM tray opener and a waterproof plastic bag.

$30.90 at Amazon
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Two-toned

The red and white phone has an eye-catching design, and lights up.

$30.90 at Amazon
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Flashlight

The built-in torch can last up to 24 hours.

$30.90 at Amazon
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Bottom

The SpareOne can also save people in speed dial and can play a siren tone to attract attention.

$30.90 at Amazon
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Updated:Caption:Photo:Sarah Tew/CNET
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