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Original Xiaomi Mi Band 4 Nfc Version Miband 4 Smartband Fitness Traker Waterproof Smart Band With Nfc Russian Mastercard Pay - Wristbands - AliExpress
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![Yesterday my miband 4 decided to stop measuring my heart rate automatically and now it doesn't even work when I do it manually. Any way to fix this? : r/miband Yesterday my miband 4 decided to stop measuring my heart rate automatically and now it doesn't even work when I do it manually. Any way to fix this? : r/miband](https://preview.redd.it/el9th1pe18141.jpg?auto=webp&s=24cd49b04a42b4d7825768cbe09f6cee594d8dfc)