[This review was collected as part of a promotion.] I wanted to love the GTR 3 Pro. Coming from a major smart watch brand, I expected the UI to be different. In fact, I was pleasantly surprised how much I loved this watch. However, my love turned into disappointment when it came to PAI. I am a fitness trainer and workout six days a week. I am always active and, as such, my resting heart rate is very low. Even in very intense exercise, it doesn't get higher than the 140s. As such, despite double workouts, I never received any PAI. So the gamification in this watch became irrelevant. I am returning it.