This seems to be the best overall GPS Tracker when considering price and quality. You can get one a little cheaper that is water-resistant as opposed to water-proof, but for a few bucks more, get this one. If you’re going to perform professional, private eye work, obviously you can go more upscale. This one will give you what you need. It gives you accurate GPS tracking, long battery life (2 weeks), email and text alerts, and access via a custom Smart Phone App or tracking website with Google Maps and tracking tools. You will need a subscription, like all trackers. This one has a deal for $19.95 a month which is the cheapest that I have seen. Nice overall gadget.