Wired
Apple will once again be holding two Apple Watch challenges this April: the Earth Day Challenge on April 22nd and the International Dance Day Challenge on April 29th.
By completing the Apple Watch Challenge, you’ll earn special badges that can be used in iMessage and FaceTime.
Earth Day Challenge: April 22nd
The Earth Day Challenge will be held on April 22nd this year. To complete the Earth Day Challenge, you must complete a workout of at least 30 minutes on April 22nd.
Dance Day Challenge: April 29th
The Dance Day Challenge will also be held on April 29th, just like last year. The Dance Day Challenge was started to commemorate April 29th (International Dance Day), the birthday of Jean-Georges Novert, who is said to be the father of modern ballet.
The requirement to complete the Dance Day Challenge is to complete a dance workout of at least 20 minutes on April 29th.
Source:MacRumors
Source: iPhone Mania