For Prime members only, Amazon offers the TomTom Spark Cardio + Music GPS Fitness Watch in Black for $124.99 with free shipping. (Best Buy via eBay charges the same.) That's $15 under our mention from last September and the lowest price we've seen. (It's the best deal now by $5.) It comes in size L only, and features a 1.75" backlit display, built-in heart rate monitor, 3GB of music storage (room for over 500 songs), digital 3-axis accelerometer, and water resistance up to 131 feet.