I needed wireless sync for some separate light strips lately (to light up different parts of the kitchen), and I'm SO glad I chose one using its own RF protocol instead of wifi or Bluetooth. Instant on/off, pairing was a cinch, and it's been totally reliable ever since. This was the Feit Onesync, if anyone's wondering. Of course I'd have preferred a hardwired solution, but we're renters.

Meanwhile every single wifi or Bluetooth smart light I've ever tried has been a total disaster. They're all sitting in storage now, or the e-waste pile.