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 module from Quectel, a Chinese company. It is a standard precision module, which means that its accuracy is typically in the range of 1-5 meters.
Here is a table that summarizes the key differences between u-blox and L76K:
| Feature | u-blox | L76K |
|---|---|---|
| Positioning accuracy | High precision (down to centimeter level) | Standard precision (1-5 meters) |
| Price | More expensive | Less expensive |
| Availability | More widely available | Less widely available |
| Applications | High precision navigation, augmented reality, unmanned vehicles | Standard precision applications, such as asset tracking, fleet management, and navigation |
Military and First Responder 
