Difference between WD My Passport Ultra 2.5 inch 1 TB & WD Elements 2.5 inch 1 TB

what exactly is the difference between

WD My Passport Ultra 2.5 inch 1 TB External Hard Drive  &

WD Elements 2.5 inch 1 TB External Hard Drive

which is better in performance

–jammybonam

They should have a similar performace rating considering the interface. The WD Passport Ultra features password protection (Encryption) and an automatic backup utility that links to your Dropbox account for cloud backups (WD SmartWare Pro). The WD Elements does not.

Hi the elements drive has a one year warranty and the passport has a 3 year warranty there must be a difference but I do not know what it is.