The S1 is a nice fit and very handy when it works, however my unit had problems from the start. I had to hit the program button several times before it would "take", if it took at all. Very frustrating. Also, the unit would freeze up and even the reset would not work forcing me to put it n my pocket and wait for the battery to die to recharge and reset...today it happened during a game. I'm a lifelong Garmin fan, but save your money.
Pros: accurate yardage to the greens, connects to satellites quickly, never found a course it didn't have loaded
Cons: short battery life/one game, flaky performance
Splurge like me and spring fr the G6