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Google Pixel Tag adds Bluetooth Channel Sounding for more accurate tracking than AirTag
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Google announced the Pixel Tag, a $29 Android-exclusive Bluetooth tracker that uses Bluetooth Channel Sounding and UWB to provide more accurate and power-efficient tracking than Apple's AirTag, which relies on Bluetooth Low Energy.
Bluetooth Channel Sounding uses Phase-Based Ranging instead of the older Received Signal Strength Indicator, making distance estimation more stable and resistant to obstruction and interference. For engineers building location-aware Android peripherals, this introduces a tiered tracking stack where Channel Sounding bridges the gap between BLE and the more power-hungry UWB, but adoption is currently limited to premium Pixel phones that support Bluetooth 6.0 with Channel Sounding.
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Pixel Tag is a $29 Android-exclusive tracker using Bluetooth Channel Sounding and UWB, compatible with Android 9 or later but full Channel Sounding support requires premium Pixel phones.
Bluetooth Channel Sounding uses Phase-Based Ranging, which is more accurate and resistant to interference than the Received Signal Strength Indicator method used by AirTags over BLE.
Android phones without UWB or Channel Sounding support will default to BLE tracking, making their experience comparable to a Tile tracker rather than the full Pixel Tag capability.
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