Motorola Razr Ultra 2026 battery tested — and it's the longest lasting foldable ever

(Image credit: Tom's Guide / John Velasco)

I didn’t think it was going to be easy for any other foldable to beat the Razr Ultra 2025’s record-setting battery life performance, but it goes to show how silicon-carbon batteries are rewriting the way phones last on a single charge. After putting the latest Motorola Razr Ultra 2026 through the Tom’s Guide battery drain test, it proved to me that this new battery tech is a winning formula.Just last week, I raved about the Razr Fold’s class-leading battery life performance among notebook-style foldables. But while it set a record, I pointed out how much better it would’ve been if it were using a carbon-silicon battery instead — something that the Razr Ultra 2026 clearly benefits from having.Quite simply, the Ultra 2026 is the foldable phone with the longest battery life we’ve ever tested.

Motorola Razr Ultra 2026 vs Razr Fold: 5 Things to Know (HANDS ON) - YouTube

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How we test battery life performance