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Why you need ultra-wideband on your next phone

Coming soon to smart locks and perhaps even wireless earbuds

Feb 05, 2025
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Apple AirTags use ultra-wideband to achieve its incredible precision. Credit: Aloysius Low/Can Buy or Not

Besides the difference in screen size, the latest Samsung Galaxy S25+ and Galaxy S25 are practically identical phones. But Samsung has again omitted a less-known feature on the Galaxy S25 — ultra-wideband (or UWB for short).

Ultra-wideband is why Apple AirTags are so accurate. This short-range wireless communication technology offers incredible precision of around 10cm compared with about a metre for Bluetooth. And the technology is starting to make its way into other applications besides tracking objects. To unlock cars, for example, with vehicles from major carmakers like BMW, Mercedes Benz, Toyota, and Hyundai among others, supporting this feature.

Smart door locks with UWB are also on the cards. What makes these locks more attractive than those that use Bluetooth or Wi-Fi is their precision, which enables them to unlock automatically when you reach your doorstep. In addition, …

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