Amazon Prime Day officially got underway Tuesday, with the summer sales event slated to last through July 11. Competitors Target and Walmart are also holding multi-day sales events.

Amazon Prime Day is officially underway. But where's the fun in letting Amazon have all the glory? Target Circle Week kicked off Sunday, bringing huge deals across groceries, clothing, toys, and more.

Walmart has launched its own summer sale event to counter Prime Day. Only some deals are actually worth grabbing.