Xiaomi will release the NFC-enabled version of the Mi Band 4 in Europe in a couple of weeks. Until now, this version was exclusive to China, but it will soon become available in Russia and later on in Europe as well. Initially, only Mastercard will be supported. You will have to add your card in the Mi Fit app and select "Russia" as your region. Support for Visa, Google Pay and PayPal should be added, but there's no time frame for when that will happen. Besides contactless payments, you will be able to use Xiaomi Mi Band 4 NFC in public transport. MasterCard's PayPass currently supports...