Conclusion
Retailing at approximately 450 EUR at its launch, the vivo X21 was positioned as a compelling choice in the mid-range smartphone market back in 2018. While some aspects like the choice of a microUSB port and absence of NFC may seem dated by current standards, its innovative in-display fingerprint sensor, capable camera system, and quality audio specs contribute to its enduring appeal. It stands out as a worthy consideration for those seeking a device that melds design with functional efficiency.