When this upgrade kit is fitted in conjuction with the vector 2s then you39ll have the same functionality of the vector 2 the garmin vector 2 allows you to gauge your training intensity with unprecedented precision and by working seamlessly with compatible garmin devices helps you to train smarter with vector 2 garmin have made power available in a package that is quick to install simple to use lightweight and almost maintenance free it39s unaffected by weather conditions or your p