As we changed from the Xiaomi Mi Band 2 to the Fossil Gen 5 (War Os 2) smart watch, we figured out that the vibration pattern seems to be static. Normally we want to be waked up by wrist vibration only. As we experienced, the vibration pattern is static and frequency and intensity increase over time. In principle this is a great feature, nevertehless in combination with just 1 minute of delayed alarm and vibration on the smartphone (2 minutes not possible in the settings) it is quite short to wake up and e.g. snooze before the mobile starts to ring / vibrate.
Hence we suggest to either choose an individual vibration pattern (e.g. more intense at the beginning) and/or give the chance to delay smartphone alarm and vibtration e.g. to 2 minutes.