It depends on the scale. Most models are completely safe to use with a pacemaker, but you do have to check with the manufacture and the sales page first. Most wireless technology isn’t going to send a jolt from the tempered glass throughout your body. When this issue regarding pacemakers pops up, it’s included in full-body scan machinery that lets off a shock to properly read your body fat content and water weight. Standard smart scales with a tempered glass top won’t affect a pacemaker.\r