Smartphones with the Longest Battery Life

Smartphone batteries are getting larger and larger, with the promise of phones that can go all day on a single charge. But grab a fully charged Cat S41, and you won’t need to search for any electrical outlets during the day. The durable phone from Cat is the longest-lasting phone we’ve tested in the past year-and-a-half, lasting more than 15 hours on our punishing battery test.

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