Meet the MoveFactorX Module: a smart barbell tracker that combines with your iOS device to take your workouts to the next level. It weighs only 25 grams and takes only 8cm of space on your barbell, so it won’t get in your way. It attaches to your Olympic bar easily to give you feedback on your lifts.
The MFX module runs on a coin cell battery. It has a power indicator to let you know when it is synced and ready to go. You can find out more about it here.