With the Wear OS 5.1 update that was released last March, Google quietly introduced a new feature called Channel Sounding for the Pixel Watch 3 that could improve the accuracy of pinpointing the location of other devices using its existing Bluetooth hardware. Channel Sounding instead measures the time it takes to send multiple radio signals at different frequencies between two connected devices. Pinpointing the exact location of a tracking device like an Apple AirTag using an iPhone is easy thanks to their use of Ultra-Wideband (UWB) hardware. The advantage of Channel Sounding is that it uses the Bluetooth hardware that’s now common in nearly every smartphone, smartwatch, and set of wireless headphones. Devices will need Bluetooth hardware that supports the new 6.0 protocol, but given the Pixel Watch 3 is nearly 10 months old at this point, there are plenty of devices available that are already compatible.