The X26 from Bynav is a GNSS/INS combined navigation system based on self-developed GNSS chips with a high-precision IMU compliant with functional safety ASIL B standards. It features a full-temperature calibrated IMU and deeply-coupled combined navigation algorithm that improves positioning accuracy by 2 to 5 times over loosely-coupled algorithms. The REAL GNSS positioning engine provides integrity monitoring and partial ambiguity resolution for harsh environments including underground parking, tunnels, overpasses, urban streets, and ports. It supports multiple interfaces including automotive Ethernet, CAN/CAN FD, PPS, and gPTP.