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The Vivo X21 UD is a premium flagship smartphone with under display fingerprint scanner. This isn't the first time Vivo is making a smartphone with the under display sensor technology, the X20 UD comes with the feature as well. Unlike the X21 which comes with a rear fingerprint scanner, the X21 UD comes with a fingerprint scanner on the screen. The device also boasts of 6GB of RAM and 128GB storage. Want to know more? Stay with me. Vivo X21 UD Key Specs ・ 6.28-inch, FHD+ Super AMOLED capacitive touchscreen, 2280 x 1080 pixels ・Android 8.1 Oreo with 6GB RAM ・Octa-core 2.2GHz Qualcomm Snapdragon 660 SDM660 ・128GB built-in storage and support memory card up to 256GB ・12MP + 5MP rear camera and 12MP front camera ・Fingerprint sensor (Screen) ・4G LTE ・3200mAh non-removable Li-Ion battery DESIGN This expensive smartphone looks expensive too, sporting an Aluminum Alloy overall unibody and covered in glass. The device reflects light beautifully in the most subtle way, while its premium body would be perfect to flaunt when out and about. There's a missing fingerprint scanner at the rear, I think we all know where that went. The dual shooters in the top left corner are still in the vertical position with the dual-LED flash underneath. Measuring the same 7.4 mm in thickness by the sides and weighing 156.2g overall. You can get the Vivo X21 UD in Aurora White, Ruby Red and Black colours. DISPLAY The highlight of this device is the under display fingerprint scanner, allowing users unlock their smartphone just by placing their registered finger on the bottom corner. A perfect combination of the bezel-less display, a sleek top-notch and under display fingerprint scanner. What do you get when you unlock the screen? A sharp 6.28-inch FHD+ Super AMOLED capacitive touchscreen, boasting of 2280 x 1080 pixels in resolution. Bringing all your games and movies to life as it boasts of 402 pixels per inch density. The screen reaches 85.2% screen to body ratio, which is the second highest in the world. HARDWARE and SOFTWARE Houses the same Qualcomm Snapdragon 660 chip with 8-cores processor and 64-bit CPU architecture. The octa-core processor also clocks at 2.36GHz with a 14nm process technology for fast performance as well. In the graphics department, the Qualcomm Adreno 512 graphics processor is in charge. For multitasking, there's a massive 6GB of RAM space available with a memory speed of 1866MHz. There's no cheaper version of the Vivo X21 UD, with only the 128GB version available. You can also upgrade up to 256GB with a memory card as well. The Vivo X21 UD runs on Android 8.1 Oreo with Funtouch OS 4.0. CAMERA For photography, the 12MP + 5MP dual rear shooters should do their job pretty nicely. With both cameras having f/1.8 and f/2.4 aperture respectively and coming with a dual-LED flash. While for selfies, the 12MP selfie shooter has f/2.0 aperture and would do justice to your face. BATTERY The Vivo X21 UD is powered by a non-removable Li-Ion 3200mAh battery with fast charging technology. PRICE AND AVAILABILITY Vivo X21 UD is available for $549 to $649, that's about (N190,000 - N220,000). FULL SPECIFICATION OF VIVO X21 UD LAUNCH ・Announced: Mach, 2018 ・Status: Available. March, 2018 NETWORK ・Network Technology: GSM / WCDMA / LTE ・3G Support: Yes ・4G Support: Yes ・Number of SIM Card: 2 (Nano) ・Dual SIM Support: Yes DESIGN ・Material Type: Aluminum Alloy ・Dimensions: 154.5 x 74.8 x 7.4 mm ・Colour: Aurora White, Ruby Red, Black ・Weight: 156.2g DISPLAY ・Screen Type: FHD+ Super AMOLED capacitive touchscreen ・Size: 6.28-inch ・Resolution: 2280 x 1080 pixels ・Pixel Density: 402ppi ・Screen to Body Ratio: 85.2% SOFTWARE ・Operating system: Android 8.1 ・Processor: Octa-core 2.2GHz ・Chipset type: Qualcomm Snapdragon 660 SDM660 ・Graphics Processing Unit: Qualcomm Adreno 512 STORAGE ・Memory Card slot: Yes, up to 256GB ・Internal storage: 128GB ・RAM: 6GB CAMERA ・Back Camera: 12MP + 5MP ・Front Camera: 12MP ・Back Flash: Yes, dual-LED Flash ・Front Flash: No FEATURES ・Wifi Hotspot: Yes ・Bluetooth: Yes ・Fingerprint Sensor: Yes (Screen) ・Sensors: accelerometer, proximity, ambient light, compass, gyroscope ・USB: type 2.0 ・GPS: Yes ・3.5mm Audio Jack: Yes BATTERY ・Capacity: 3200mAh ・Type: Li-Ion ・Standby Time: - ・Talktime: - ・Fast Charging: Yes