The main difference between habits and routines is the awareness:

1. A habit usually manifests itself as an automatic urge to do something, often triggered by a particular cue, like coffee, smoking a cigarette etc.
2. Routines require deliberate practice. Making your bed in the morning, going to the gym, going for a hike every Sunday, meditating are all routines that require to keep on consciously practicing them or they eventually die out.