Vivo X21 UD Specifications and Price

Vivo X21 UD

Vivo X21 UD

We were all impressed when Vivo released its first in screen display on the Vivo X20 Plus UD. To continue the trend, it has just released another smartphone with the under the screen fingerprint sensor feature and it is tagged the Vivo X21 UD. The new smartphone was unveiled recently alongside the Vivo X21 which unlike this smartphone has its fingerprint sensor at the back. Both smartphones are more less the same with the only difference being the under display fingerprint sensor.

Vivo X21 UD Key Specs and Features

  • 6.28-inch, Super AMOLED capacitive touchscreen, 2280 X 1080 pixels (402 ppi)
  • Octa-core Qualcomm SDM660 Snapdragon 660 CPU with 6GB RAM
  • 128GB built-in storage, up to 256GB with a memory card
  • Dual 12MP + 5MP rear camera and 12MP front camera
  • 4G LTE
  • Fingerprint sensor (under display)
  • 3, 200mAh non removable Li-ion battery


Design and Display

It is sort of difficult to differentiate between the Vivo X21 and X21 UD besides the fingerprint sensor at the rear panel of the former. The smartphone has the same camera placement and also the notch too positioned at the top. You can get the smartphone in three available colours, there is ruby, white and black colour variants.

You get a more or less bezel-less display on the Vivo X21 UD and the same crisp resolution thanks to the display type and high pixel resolution. There is also an equally large display on the smartphone extending up to 6.28-inch and with a resolution of 2280 X 1080 pixels. Using the under display fingerprint sensor from Synaptics, you can unclock your phone by placing your finger on the screen.

Battery and Camera

When it comes to battery capacity, things are still pretty much the same which is the case when it comes to most of the features between the Vivo X21 and X21 UD. There is a 3, 200mAh Li-ion battery supplying current on the smartphone and has a MicroUSB port through which it can quick charge.

As for taking pictures, the Vivo X21 comes with a dual rear camera on the back having the same set of camera. That being a Dual 12MP + 5MP rear camera and a 12MP camera up front. This cones with the same AI enhancement from Vivo as it is featured on the Vivo X21 alongside the AI stickers too.

Hardware and Software

Left for the mid-range SoC, the Vivo X21 UD could have easily qualified for a high-end smartphone. However, the smartphone comes with an eight core Qualcomm SDM660 Snapdragon 660 chipset and an Adreno 512 GPU for handling graphics.

The streak continues with a 6GB RAM, although, unlike the Vivo X21 you only have one model with an internal storage of 128GB. You could also expand the storage space to 256GB with a MicroSD card. It runs the latest Android 8.1 Oreo with the Funtouch OS 4 skin on it.

Pricing and Availability

You can the Vivo X21 UD from a number of online stores for about 207, 000 naira. However availability is mostly in China.

Vivo X21 UD Specs

Here are a few specs of the Vivo X21 UD:

General Features

  • Platform: Funtouch OS 4.0 (Android 8.1 Oreo)
  • Processor: Octa-core 4 x 2.2 GHz Kryo 260 & 4 x 1.8 GHz Kryo 260 (Qualcomm SDM660 Snapdragon 660)
  • GPU: Adreno 512
  • Memory: 6GB
  • Colours: Black, Ruby Red
  • Dimension: 154.5 x 74.8 x 7.4 mm
  • Weight: 156.2
  • SIM Type: Nano sim
  • SIM Count: Dual sim


  • Display: 6.28-inch, Super AMOLED capacitive touchscreen, 2280 X 1080 pixels (402 ppi)
  • Screen Protection: –


  • Rear Camera: Dual 12MP + 5MP camera, 2160p Video@30fps
  • Rear Camera Features: Phase detection autofocus, LED flash, Geo-tagging, touch focus, face detection, HDR, panorama
  • Front Camera: 12MP camera, 1080p Video@30fps


  • Built-in Storage: 128GB
  • Memory Card Support: Yes, up to 256GB
  • Bundled Cloud Storage: –

Network Support

  • 2G GSM: Yes
  • 2G CDMA 1X: –
  • 3G WCDMA: Yes
  • 3G CDMA EVDO: –
  • 4G LTE: LTE band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500

Internet & Connectivity

  • GPRS: Yes
  • EDGE: Yes
  • 3G/WCDMA/HSPA: Yes
  • HSPA+: Yes, 42.2/5.76Mbps
  • CDMA EVDO: –
  • 4G LTE: Yes
  • WLAN: Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct
  • Wi-Fi Hotspot: Yes
  • Bluetooth: Yes, v5.0 with A2DP, LE
  • NFC: –
  • Infrared Blaster: –
  • USB Port: MicroUSB 2.0


  • SMS/MMS: Yes
  • Instant Messaging: Yes
  • Push Emails: Yes
  • Email Protocol: –


  • Music Player: MP3/WAV/eAAC+/FLAC player
  • Video Player: MP4/H.264 player
  • FM Radio: Yes
  • Loudspeaker: Yes
  • 3.5mm Jack: Yes


  • Navigation: Yes, with A-GPS, GLONASS, BDS
  • Maps: Yes

Sensors & Control

  • Digital Compass: Yes
  • Accelerometer: Yes
  • Proximity Sensor: Yes
  • Light Sensor: Yes
  • Barometer: –
  • SpO2: –
  • Pedometer: –
  • Heart Rate Monitor: –
  • Gyroscope: Yes
  • Fingerprint Scanner: Yes, (under the display)
  • Iris Scanner: –
  • Face Unlock: –
  • Intelligent Digital Assistant: –
  • Motion Sensing / Gesture Control: –
  • Voice Control: –

Other Features

  • Video Streaming: Yes
  • Active Noise Cancellation: Yes
  • Wireless Charging: –
  • Built-in Mobile Payment: –
  • Water Resistant: –
  • Dust Resistant: –
  • Image Editor: Yes
  • Video Editor: Yes
  • Document Viewer: Yes
  • Document Editor: Yes


  • Battery: 3, 200mAh non removable Li-ion battery
  • Talktime: –
  • Standby Time: –
  • Fast Charging: Yes

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