My boyfriend has a Forerunner 230 watch, and the screen was scratched. For his birthday, I'd like to find a screen repair product, that can remove scratches from the screen. According to Garmin's website, the watch has "chemically strengthened glass" as the screen. I've read other threads where people said they used such a product to remove the scratches from their watches, but don't say which product they used. Does anyone have any ideas or suggestions? Thank you!