This is a must have item if you have slouchy posture - it definitely - definitely works! I feel my back being sore, and i imagine it is because i'm using muscles i don't usually use when slouching. You slouch, it vibrates!

Lumo lift has a magnetic clasp that will attach it to the fabric. It comes with 2 initial magnet colors, but if you want other ones - you can buy set with the colors you like that match your shirt (or contrast it) the yes, the magnets are strong. I al...  Read More

Easy to use and stays in place.

This product is worthless. It is ethically questionable, and possibly fraudulent, to keep selling this product because it no longer works. The 3rd party seller says in bold font that lumo lift requires the free lumo lift app for ios/android.

The app compass acts erratically without warning. The gyroscope reaction is very unstable according to the compass and does not react well to an actual slouch position.

Device seems to behave differently when not communicating with app. At present, i am unable to login to the android app that is required to use the device rendering it useless to me.