Each and every day, Amazon highlights one particular deal that offers what it perceives to be value above and beyond most of the other deals you might find on the site. Today, that deal is indeed a great one: For one day only, you can get one of the best navigation systems Garmin has ever made, the Garmin nüvi 55LMT, at a big $50 discount.

We know what you’re thinking — I have a smart phone and Google Maps. Why do I need a dedicated navigation system for my car? It’s true, of course, that mobile navigation solutions have gotten very good over the past few years. There’s something to be said for a dedicated system with on-device maps though, and Garmin is one of the best in the business.

The nüvi 55LMT features a 5″ screen and a lifetime of map updates. What’s more, it also includes a lifetime of Garmin’s live traffic monitoring service, which is a great value. On Thursday only, all this can be yours for 33% off the device’s regular price.

Garmin nüvi 55LMT, $99.99 with free Prime shipping