Health & Wellness · TENS Units (Pain Relief)
What's the difference between TENS and EMS modes on these 3-in-1 devices?
Reviewer consensus
TENS (transcutaneous electrical nerve stimulation) targets sensory nerves to block pain signals, while EMS (electrical muscle stimulation) drives stronger muscle contractions for recovery and conditioning. A 3-in-1 unit typically adds a massage/relax mode. Community posts we read note that EMS contractions are noticeably stronger than the gentle pulses of TENS.