Number 1: FirmTech TechRing, $275
FirmTech’s own pick for most buyers who want to know what is working
It does everything the other two do for erection support, and it is the only FirmTech ring with sensors. It measures firmness, quality and duration during sex and counts nighttime erections, with insights in the app. It has the longest warranty (1 year plus 2 sleeve replacements) and is rated for up to 12 hours. It costs the most, at $275.
FirmTech's TechRing page shows 4.6 out of 5 from 101 reviews, as of November 2026.