Here is a smart wearable device that helps you take your weightlifting to the next level. The FitLift can be attached to your barbell, kettlebell, or wrist. It gives you feedback on your reps on your iPhone and iPad. You get workout scores and weight load recommendations based past performance.
This gadget can be used with over 45 exercises targeting your arms, legs, chest, and back. You will be able to see peak velocity, reps, and other stats. The companion app lets you monitor your progress by ploggin your reps, weights, and workout scores.