If you wrote off Garmin (NASDAQ: GRMN) stock after GPS-enabled smartphones began disrupting the company's automotive navigation device business some years back, it's time for you to take another look. The company just wrapped up its second straight year of sales and profitability gains, despite challenges in a few of its biggest market niches.Garmin expects that momentum to continue in 2018, and shareholders can count on an added boost to their ROI from its recently hiked dividend.