Apple Watch/Samsung Gear App for Builds?

Now I can remember when I first started playing League and can remember the difficulty I had when trying to figure out what items to build and what time I should have each item in the game. I know that on op.gg there is already a function telling you this but I thought that it might be more efficient to have each individual item show up on your smartwatch may be easier than trying to compare the times on the set builds. Maybe have it buzz when you should have an item or when it's time to back or something like that? Just an idea and wanted to hear some thoughts!