What’s more, each guest on all Caribbean Princess sailings after September 2018 will receive an OceanMedallion wearable device to unlock his or her stateroom, make onboard payments, track down friends. Celebrity and Princess cruises sail to many of the same destinations. Brush up on your golf game with a putting green on Princess ships or take a few laps around the jogging track. Both lines cater. Use cruiseastute.com to compare…