Buy Vivo X21 online at best price with No Cost EMI offers in India. Vivo X21 (Black, 128 GB) comes with 6 GB RAM, 128 GB ROM, 3200 mAh battery and 12 MP + 5 MP Dual Primary Cameras with 12 MP Front Camera. Vivo X21 is powered by 2.2GHz octa-core processor. The phone has Android v8.1 (Oreo) operating system which will be upgradable to v9.0 (Pie). If you do not have a credit card and still need financing for this phone, then you can try out the EMI Network Card which allows you to shop for up to Rs. 4 lakhs and converts the purchase amount into interest-free installments.