I've seen some recent HYPE about this unit overheating around the pad area opposite the motor. Though my iPhone 6 is lighter & thinner, I found that both the iPhone and OSMO unit both contributed to the IR heat signature thus am not blaming one over the other! Saying that, both the iPhone 6 and lens attachment are quite a bit lighter than newer units out there and I only ran the units gimbal for roughly 5 minutes indoors. Curious all the same though, hope it helped!?