At the moment Daydream will work on new Google Pixel and Pixel XL phones, and it is predicted that in the close future it will be compatible with almost all new Android phones which would support the Daydream platform.
Daydream would be immensely lighter than Samsung Gear because it is made of foam and soft fabric and it contains the little plastic panel where the phone is attached. The headset mask that should be put on the face is attached with the hook and loop tape, which is highlighted as an advantage because it makes taking off and washing easier. This feature is very useful for trade shows, conferences and other kinds of public events, even presentations in media when many people should try out the same VR headset on their face. The headset tries to solve basic issues like cleaning and complicated set-up of VR devices.