Bangkok or Phuket?

I’m going on an Asia trip to Seoul and Singapore. I’m also considering Bali but leaning more towards Bangkok or Phuket. What is better? I’d like to do hikes, adventure type activities and also relax. I love the architecture of Bangkok but having already been to cities like Tokyo is it worth going? I could technically do both locations but would only have time to be in Bangkok for 2 days.