If you run, the Huawei WATCH GT Runner 2 is the training partner you strap on and forget about. Its 1.32-inch AMOLED screen stays bright enough to read mid-stride, and the built-in GPS locks onto satellite signals to map your route and distance without your phone. Head out for an early park run and you'll come back with your pace, splits and training load ready to look at. Sensors on the back keep tabs on your heart rate, blood oxygen (SpO₂) and stress, and it'll track your sleep overnight so you know whether you're properly recovered before the next session. It's water resistant to 40m too, so a sweaty session or a rainy 10k won't bother it. Pair it with an Android or iOS phone and you're away.