早前，在外国有一些 LG G Watch 手表用家表示，手表底部的五个金属接触点出现锈蚀变色情况。
LG 代表回应指出，由于这些接触点本身是有电流的，当用家带着手表时，皮肤就有机会将两个接触点接通，而化学作用亦因此形式，导致接触点出现锈蚀情况。LG 表示这些锈蚀不会影响充电，手表亦是安全的。
而 LG 亦为 G Watch 推出更新，解决这锈蚀问题。安装更新后，手表在不充电时就不会有电流流过接触点，这可避免化学反应出现。
“Recently it has come to our attention that a small number of G Watch devices have been reported to have developed discoloration and residue buildup on the terminal pins located on the back. While completely safe and unlikely to affect charging, LG will be rolling out a maintenance release over the next few days that will disable the current when the G Watch is not in the charging dock. The maintenance release will be rolled out automatically over-the-air to all G Watch owners. We thank G Watch users for their patience and apologize for any inconvenience this may have caused.”-LG