Size; weight; works in the rain (no bezel); quick satellite fix
Not as easy to get some data immediately after your run (like splits); battery life.
Okay, I promised to do this to help out other's in my same situation so here is my very basic review of the 110.
First I should explain I'm not a great runner. I usually run 5-10 miles 3-4 days a week. I have previously used my wife's older 305. At the Boston Marathon this...
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