With a swipe of the shoe’s tongue module, a user can adjust the tightness of the fit. Inside the module is a micromotor, which pulls the laces that run through the shoe. Tightness can also be adjusted from the smartphone app or wearable app.
These shoes come as a successor to Puma’s 2016 smartphone-connected self-lacing shows. They can be charged via Qi wireless chargers and last for up to five days. Unfortunately, the opportunity for step-tracking was missed, so the shoes don’t log steps or measure calories.