What are some alternatives?
When comparing Blocks and A-Painter, you can also consider the following products
Moto 360 - The round smart watch is finally here.
Tilt Brush by Google - Paint in spaces around you with Virtual Reality
Apple Watch Series 2 - The new Apple Watch
SprayPrinter - Convert digital designs into wall art from your smartphone
Tic Watch Pro - A dual screen smart watch with 5-30 days on a single charge
MasterpieceVR - Powerful VR sculpting & painting tool