I seriously don't understand the negative reviews but I love this thing! The magnet is strong, the Fitbit is secure and the shape doesn't bother me lol. I think it's because the 'opposite magnet' can stick to the smaller magnet. If you're not sure, just give it a try, don't believe the negative reviews and see for yourself. UPDATE: Almost Lost! But mostly it was my fault. Obviously, like any magnet, it loses power the thicker the material between the two magnets. I moved it to a thinner spot and everything is fine. Also, ladies, I like to attach it by "hugging" the bra strap so there is no material between the magnets. So you will feel much more reliable and will not have any problems.
Impressive IPROVEN BPM-417 - Digital Wrist Blood Pressure Monitor For Home Use - Large Cuff And Heart Rate Monitor - Real-Time BP Reading With Wrist Guide, Movement Sensor, And Backlight
42 Review
Fast & Accurate Digital Ear Thermometer For Adults, Kids & Babies - IProven DMT-511 [Forehead & Ear Mode, LED Display, Fever Alarm And 35 Memory Slots]
44 Review
Smart bracelet Xiaomi Mi Smart Band 5 Global, black
244 Review
SadoTech Necklace: A Wireless Medical Alert System For Caregivers And Seniors
44 Review