Autonomous Multi-GNSS Satellite Receiver
Low-tier smartwatches advertise "GPS" but actually feature Connected GPS, relying entirely on a Bluetooth tether to the user's phone. True rugged navigation requires an on-board GNSS IC (such as Airoha or Sony low-power chips) supporting GPS L1, GLONASS, Galileo, and BeiDou simultaneously. Brainox isolates satellite antennas using ceramic patch designs that counteract wrist detuning and minimize Time To First Fix (TTFF) under dense forest canopies.























