I need a clear, vendor-agnostic recommendation for a GPS device that can sit in cars, trucks, and motorcycles and transmit live coordinates to my web panel. We do not have any existing hardware, software, or APIs in place, so I’m starting from zero and want a detailed, actionable blueprint. What I’m looking for: • A short list (3–5) of commercially available GPS units built for vehicle tracking with reliable live-data capability. • A side-by-side comparison covering cost, network type (2G/4G/Cat-M), installation effort, SIM requirements, and after-sales support. • Confirmation that each device can push real-time latitude/longitude at intervals of 10-30 seconds. • A proposed data flow: device → cellular network → server endpoint → my custom web panel, including recommended protocols (HTTP, TCP, MQTT, or UDP) and sample payloads. • High-level integration guide for my developer: expected headers, authentication tokens, and example cURL/postman requests. • Any SDKs, documentation links, or open-source libraries that will speed up integration. Success criteria: • At least one device on your shortlist must be readily available in my market and inside our target price band. • The integration guide must be clear enough that a web developer can ingest the data without additional vendor support. • All documentation and comparison tables delivered in an editable format (Google Sheet or Excel and a concise PDF brief). If you have hands-on experience installing fleet GPS trackers or integrating their APIs into dashboards, that’s a big plus. I’m ready to move quickly once I have a solid, real-time solution in hand.