And before I forget, if you do get Phillips hue lights to use with SmartThings, you should also get their bridge. Although it’s technically possible to get by without it when you have a smartthings hub, neither company recommend that configuration as it can mess up your Zigbee network.
So whether you get a smartthings hub or not, if you want to use hue lights with SmartThings, you should get their bridge. 
FAQ: Do I need the Hue Bridge/Hub to Use a Hue Bulb with SmartThings?