Place all ingredients in a high speed blender and puree until smooth.
To prepare glass, pour 1/4 cup or so of chia seeds on a plate. Run the rim of a glass under running water then carefully dip the top of the glass onto the plate until the rim is covered in chia seeds.
Pour the smoothie into the glass and serve.
Notes
If you are working with frozen fruit you may need to add a bit of liquid to get the smoothie blending - I like to add water or a bit more coconut milk to reach the desired consistency.