Changes

The [[Heart Rate Monitor| Heart Rate Monitoring]] of [[Best Running Watch| Garmin watches]] is not as reliable as the Polar systems. The latest soft straps are better than earlier generations, but they can still be problematic. A worthwhile upgrade is to purchase a [http://www.amazon.com/dp/B007XCLU66 B000F7F64I Polar Wearlink+ Replacement Strap]. The Garmin transmitter fits into the clips of the Polar strap, and you get a much better reading. There are two versions of the Polar strap, the [http://www.amazon.com/dp/B004RCLGHI/ B000F7F64I Wearlink] and the [http://www.amazon.com/dp/B007XCLU66 Wearlink+], though the names are not used consistently. The Wearlink is more comfortable and chaffs far less than the Wearlink+. The Wearlink+ is seems to last slightly longer, but I find it cuts into my skin on longer runs. The most obvious difference between the two is that the Wearlink has cloth electrodes that you can dampen and the Wearlink+ has plastic electrodes (you still have to dampen your skin).