Asus has started pushing out a new update to the ZenWatch (WI500Q) and ZenWatch 2 (WI502Q) smartwatches. Arriving as version M1D65P and M1D65B, the update brings along Android security fixes for the month of April and March, respectively. Nothing else is included in the update, as release notes only say: "Fix security vulnerabilities." Given the fact that it's an OTA rollout, it might take time for the update to hit your device. Meanwhile, if you feel impatient, you can manually check for the update by heading to your handset's Settings menu. Source 1 2 | Via
Source: http://www.gsmarena.com/new_security_update_hitting_asus_zenwatch_and_zenwatch_2-news-25070.php
