Vehicle Diagnostics: Daily engine health assessments can help you avoid breakdowns and catch potentially costly repairs before they get worse, while also reminding you of upcoming maintenance needs. They can also monitor engine, battery and systems health, and can even tell you what worrisome "check engine" lights mean, then turn them off once the problems are fixed.
Monitoring and Tracking Performance: With features like vehicle location updates and dangerous driving alerts, these devices allow you to monitor driving behavior. You can set check-in points so you are automatically alerted when your car arrives home, to work, school or other locations. You can also get alerted to potentially unsafe driving habits, such as excessive speed, hard braking, and rapid acceleration, or even get crash alerts with some models.
Other Features: Depending on the device you choose, you can also monitor your tire pressure, track mileage and trip history, get trip summaries, enable in-car Wi-Fi, and more.