Vivo X21 review: A worthy mid-range flagship to challenge OnePlus dominance

After showcasing the prototype of in-display fingerprint sensor technology at the Consumer Electronic Show, 2018, Chinese smartphone maker Vivo on May 29 launched the Vivo X21 with a fingerprint sensor under the display. For a mid-range smartphone, the X21 boasts premium features like dual rear cameras, artificial intelligence capabilities, face-unlock mechanism, Hi-Fi sound with dedicated AMP and modern notch-based screen. These features propel it in the league of mid-range premium smartphones – at least on papers.

Vivo X21 design

The Vivo X21 glass-metal-glass sandwich design looks similar to other mid-range smartphones. The design, especially the frame, looks close to the OnePlus 6, but the front is dominated by a notch-based screen stretching almost edge to edge on three sides and leaving only a thin chin on the bottom. On the back, the reflective glass design with horizontally aligned dual camera set-up on top left is in line with the current trend and looks similar to the Honor 10.

Vivo X21 The thin frame that holds the front and back glass feels pointed, something similar to the Nokia 8 Sirocco. While the frame makes it easy to hold and operate the phone, the razor thin volume rocker keys and a power button on the right side of the frame are somewhat uncomfortable to use.

On the bottom, the phone sports an outdated microUSB port for charging and data transfers, coupled with a mono speaker on the right and dual-SIM slot on the left. The left side of the frame is vacant and the top side features a 3.5mm audio output port and secondary microphone.

Overall, the design looks modern, but not refreshing. The metallic frame gives to the convenience to hold the phone with confidence, but the thin volume rocker keys and power button reduce the utility overall.