One of the hottest topics in tech this year is digital health, which includes gadgets like the Fitbit One that continuously monitor your body and help you exercise, eat, and sleep better. But what about your car?

Automatic Labs, a San Francisco-based startup formed last year, today unveiled the Automatic Link. It's a combination iPhone app and dongle that plugs into your car's ODB-II port, which is the same one mechanics use to run a state inspection or check your car when it's in for service. Every car from 1996 or newer sold in the U.S. has this port, and it's usually located underneath the dashboard to the left of the steering wheel. To set up Automatic Link, you download the iPhone app, plug in the dongle, and then pair the two via Bluetooth 4.0.

Whenever you drive somewhere, Automatic Link simultaneously hooks into your car's onboard computer and your smartphone GPS and data plan to act as a "smart assistant," as the company puts it. What does that do for you? Automatic Labs says its gadget can learn your driving style and then give you audio cues to help you drive more efficiently, such as avoiding forceful braking (except in emergencies, of course), not speeding, and not accelerating too quickly. It assigns you a score each week to help you improve and save money on gas.

There's also a Trip Timeline, which shows you where you drove during the week, how much time you spent in the car, and your actual miles-per-gallon average, which I'm assuming it will calculate based on the kind of car, engine, transmission, and trim level you have. It's pretty complicated, so we'd have to test it to see how well it does. The Automatic Link also knows when you've filled the car with gas, and can help you track local gas prices to find cheaper places to fill up (though a lot of apps already do that).

Automatic Link also has some CarMD-like features, such as helping you troubleshoot engine trouble codes, but unlike CarMD, Automatic Link will also let you clear the codes and not have to take the car into the shop. It can also help you find well-reviewed mechanics nearby. The app can also send push notifications whenever the check engine or other idiot light comes on.

One important feature is currently in beta: the ability to act as an OnStar-like emergency call-in. The Automatic Link includes an accelerometer, which can detect different kinds of crashes. If it detects one, it will use your phone's data connection to report the crash to a local 911 emergency service with your name, location, and vehicle type. Then it can text family or friends to let them know something happened, where you are, and that help is on the way.

Most of the time, you have to buy a new or late-model used car to get emergency services built-in. But newer third-party products like Splitsecnd and OnStar FMV let you add this to any existing car; this is the least expensive one I've seen yet.

Finally, Automatic Link helps you remember where your car is parked, and doesn't require a manual check-in. Just leave the car; when you want to find it again, you can check the app and it will show you where the car is. It also keeps track of multiple people driving the car, so each person can show the other where the car is.

Automatic Link is available for pre-order for $69.95 direct from the company, and will be shipping in May; mercifully, it requires no subscription fees. Stay tuned for a full review as soon as we can get one in.