I've had a Galaxy Watch 4 for about a month now, coming up on the first mobile plan bill, and have never been able to sync to my Note 20 Ultra. It will work work via Bluetooth, it will work without the phone but people are confused by the odd phone number. I need to Numbersync so friends/family/customers know whom is calling. I've been on the phone with Chstimer Support for hours, in the store for hours, no one can make it work. Multiple resets...I always receive a Sd-Sdk-400 error. What is the point of me paying a monthly fee for a wearable that only works with Bluetooth? Anyone have any ideas?