(Image credit: Dan Bracaglia/Tom's Guide) Garmin just announced a refresh of the brand’s entry-level running watch lineup. Replacing the Garmin Forerunner 55 and Forerunner 165 , meet the new Garmin Forerunner 70 and Forerunner 170. The former is designed to help newbie runners get into the sport, while the latter is for runners looking to take their training to the next level. Both sport bright, colorful AMOLED screens and identical case designs, available in an alluring range of colors. Garmin Forerunner 70 and 170: price and availability (Image credit: Dan Bracaglia/Tom's Guide) The Garmin Forerunner 70 is $249 and expected to ship by the end of May or early April. The Forerunner 170 comes in two varieties, one with onboard storage for music, priced at $349, and one without, for $299; it's also expected to ship around the same time. Garmin Forerunner 70 and 170: Design The Forerunner 70 and Forerunner 170 look identical.…