Nutritious bananas can now be your data-infused running companions as well

Every runner knows bananas are the ultimate fruit to eat during a run. They’re rich in potassium and complex carbohydrates, helping you regulate your fluid levels as well as your energy. Every year at the Tokyo Marathon, Dole Japan has given out its bananas to the runners, and this year they’ve added some technological flair to their decidedly low-tech treats.

A team of engineers in Japan has somehow figured out how to sew wearable technology components, including an LED screen, into Dole’s bananas this year, making it possible for runners to track their heart rate and lap time as well as receive cheers from social media through the banana’s readout. But most impressively of all, the banana tells you to eat it once you cross the finish line—and you can, without removing any of the components.

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