SpyTec GL300 is the best portable tracker and Kayo Simple GPS Tracker is the best for multiple vehicle.
The Vyncs GPS Vehicle Tracker hits all the marks of a good vehicle tracker: unsafe driving alerts, geofencing, and real-time location tracking.
Plus, you get free roadside assistance and a companion app that can help you track your mileage, which is great if you travel a lot for work.
Vyncs also reminds you of maintenance like wear and tear, battery charge, and recall notices. You can ask Alexa about fuel consumption before work in the morning, and Vyncs even gives you advice on getting better fuel economy.