What makes the Ultra’s GPS such a step up is its dual-frequency, meaning instead of just using L1 frequency, it also uses L5 frequency for greater accuracy, as well as integrating with Apple Maps data. Dual-frequency is becoming more common in sports watches, but most older or lower-end models don’t have it.
But for average runners who typically wear an Apple Watch for daily life and a different sports watch for training, switching to one watch that can do both could be majorly appealing—both for the sake of convenience, and to have all your health stats, like resting heart rate and sleep, in one place. The same goes for runners who typically wear a sports watch 24/7 and want something a bit more stylish and with more everyday functionalities.