The GL-X750V2 (Spitz) is a robust 4G LTE VPN router designed for IoT applications, offering dual-band Wi-Fi and OpenWrt support. With its AT&T and T-Mobile certifications, it ensures reliable connectivity, especially in rural areas.

Performance: Users report solid performance with speeds around 55 Mbps down and 11 Mbps up, making it suitable for failover connections and remote monitoring. The router supports micro SIM cards and works seamlessly with Google Fi and Mint Mobile SIMs.

Setup: The setup process is straightforward, with automatic configuration prompts. However, some users noted that the device takes a while to reboot. The user interface is clean and modern, allowing easy management of settings and SMS forwarding.

Carrier Compatibility: While T-Mobile offers plug-and-play functionality, AT&T and Verizon may require additional troubleshooting. Users should verify carrier compatibility before purchase.

Firmware Issues: Some units come with outdated firmware (3.104), which cannot be upgraded without risking bricking the device. GL.iNet's firmware upgrades often require reconfiguring the router, which can be time-consuming.

Pros: Includes all North American bands, supports external antennas for better reception, and offers a cost-effective solution compared to more expensive alternatives.

Cons: Limited carrier compatibility outside T-Mobile, no automatic band adjustment for travelers, and potential firmware upgrade challenges.

Overall, the GL-X750V2 is a reliable choice for IoT applications but requires careful consideration of carrier compatibility and firmware limitations.