1. What is the difference between u-blox and L76K? The new LILYGO T-Beam Supreme (M) offers a choice between L76K and u-blox GNSS. The main difference between u-blox and L76K is their positioning accuracy. u-blox is a Swiss company that specializes in GNSS (Global Navigation Satellite System) technology. They offer a wide range of products, including standard precision, high precision, precise timing, and dead reckoning solutions. Their high precision products can achieve accuracy down to the centimeter level in seconds. The L76K is a GNSS mo...