In the past few years, we have covered plenty iPhone boxing apps and smart MMA trainers that can improve your technique and give you a killer workout. The Move It Speed bag is also worth a look. It is a smart boxing reflex bag for interactive training that gives you real-time feedback. It combines with your smartphone to track punches thrown, average striking speed, and calories burned.
The Move It Speed bag is compatible with iOS & Android devices. It comes with boxing courses and stress relieving games. The height and rebound speed are adjustable.[HT]