The best GPS tracker for assets provides real-time monitoring, theft alerts, and long battery life for valuable equipment. Popular options include Trak-4 Portable GPS Tracker and SpaceHawk GPS Tracker, which support trailers, generators, and construction equipment. Features like geo-fencing, waterproof design, and mobile app access help businesses protect assets and improve operational visibility. Choosing the right asset tracker depends on battery life, update speed, and installation type.