PV Sindhu uses 'Temple' device: What device Indian shuttler was using during Uber Cup match against Denmark?

Star shuttler PV Sindhu was on double duty during India's opening tie of the 2026 Uber Cup against hosts Denmark, which put her under a fair bit of physical stress. The two-time Olympic medallist delivered a winning start for Team India with a 21-13, 18-21, 21-17 victory world No. 21 Line Christophersen.

She later teamed up with Tanisha Crasto for a consolation win in the second doubles tie after their opponents Alexandra Boje and Christine Busch retired 36 minutes into the contest. The 30-year-old later took to social media to highlight the physical stress that she had gone through, sharing pictures of her having ice packs strapped around her right shoulder and her knees.

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That wasn't the only takeaway from India's 2-3 defeat against Denmark on Friday though. Sindhu, who had win silver and bronze at the 2016 and 2020 Olympics respectively, was also seen wearing a device on her temple next to her right eye which caught the attention of many a badminton fan on social media.

All you need to know about 'Temple', wearable tech tracker worn by Sindhu

The device that Sindhu wore in Friday's Uber Cup tie against Denmark is called the 'Temple', a wearable brain-tech device that is the initiative of Deepinder Goyal, founder of food delivery giant Zomato.

The inch-long device does not use bluetooth and stays charged for up to three-four hours and primarily tracks blood flow to the brain in real time, measuring brain oxygenation. Goyal had first brought attention on the device, which is yet to be released to the public, after appearing on a podcast with it strapped on his left temple.

Sindhu had been wearing it in training sessions over the past few weeks before wearing it to a match for the first time on Friday. According to her husband Venkata Datta Sai, who also happens to be her business partner, the 'Temple' collects data on "cognitive load" as well as heart rate and other metrics.

"The signal on the Temple is a lot cleaner, and it’s very accurate in tracking the more relevant stuff," Venkata was quoted by The Indian Express as saying.

"There’s physical load and cognitive load on the body. Cognitive looks at how hard the brain is working. So even when she’s sleeping and lots of thoughts running are through the mind, we can monitor that," he added.