Main advantage of DOT over POINT are,
- RED light turning on now and then is resolved. Earlier POINT was very prone for grounding issue.
- Size is small
- Dove grey colour
As a result of introduction of DOT
- Charging Fan noise in 450 is gone now.
- High intensity Green light flickering of POINT is not there
there are disadvantages too, such as
- Little more charging time
- Magnetic hook of Point is missing in DOT