Garmin Approach S1 Golf GPS Navigator - Monochrome - USB - 8 Hour. Approach S1 is unlike any other golf GPS. Combining a high-sensitivity GPS receiver with a lightweight, flexible sport watch, S1 gives you distance information to the front, back and middle of greens for more than 14,000 preloaded U.S. and Canadian courses. You can measure individual shot distances, track how far you walk on the course, and then use the alarm to get you up in the morning. Approach S1 is golf's first full-featured sports watch and golf GPS in one. Buy this product and Save $60.99 Off on Garmin Approach S1 Golf GPS Navigator - Monochrome - USB - 8 Hour for $119 with free shipping at Rakuten.com.