Tracker buying tips can help you avoid common mistakes when choosing a GPS tracking device. First, identify your tracking purpose and select a device designed for your vehicle or asset. Compare GPS accuracy, network coverage, battery life, installation, real-time tracking, geofencing, alerts, and mobile app features. Check monthly fees, warranty terms, customer support, and compatibility before purchasing. Avoid choosing a tracker based only on its initial price; reliability and long-term operating costs are equally important.