Apple has set a pair of Apple Watch Activity Challenges for next month in China and Russia. On August 14 in Russia, Apple Watch users can celebrate Physical Culture Day with their Apple Watch, while users in China can celebrate National Fitness Day on August 8. On August 8 in China: National Fitness Day Challenge On August 8, let’s all earn this award by doing any workout for at least 30 minutes. Record your time in the Workout app or any app that adds workouts to Health. And on August 14 in Russia: Physical Culture Day Challenge On August 14,...