The Velcro is more pseudo standard. Easy come off and already the falling part of the arm, as it is indeed usually wears during exercise and the arm moves a lot, the bracelet falls quite often. Could be still secure with a hair tie. But unfortunately, the material is so smooth and slippery that the bracelet also even without loosening, sliding off the arm. The annoying animal. Had the bracelet so taut that I already feared that the display breaks from the mobile phone. But then are the Velcro down to and ...... The stupid part. :( A S3 mini fits including a TPU casing inside. A large S3 probably only naked. Better not buy
