Vivo X21s smartphone was launched in November 2018. The phone comes with a 6.41-inch touchscreen display with a resolution of 1080 pixels by 2340 pixels.
The Vivo X21s is powered by octa-core processor and it comes with 6GB of RAM. The phone packs 128GB of internal storage that can be expanded up to 256GB via a microSD card. As far as the cameras are concerned, the Vivo X21s packs a 12-megapixel primary camera and a 5-megapixel secondary camera on the rear and a 24.8-megapixel front shooter for selfies.
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The Vivo X21s is powered by a 3400mAh. It measures 157.91 x 75.08 x 7.90 (height x width x thickness) and weighs 156.00 grams.The Vivo X21s is a Dual-SIM (GSM and GSM) smartphone. Connectivity options include Wi-Fi, GPS, Bluetooth, Micro-USB, 3G and 4G. Sensors on the phone include Face unlock, Fingerprint sensor, Compass/ Magnetometer, Proximity sensor, Accelerometer, Ambient light sensor and Gyroscope.

About Vivo
Vivo Electronics Corp. is a phone brand based in Dongguan, Guangdong, China. It was founded in 2009. The company is another Chinese smartphone maker to enter India recently. It makes low-cost Android phones, and those in the mid-range segment of the market. All of these are available in India too.
Vivo X21s full specifications
GENERAL
Release date | November 2018 |
Form factor | Touchscreen |
Dimensions (mm) | 157.91 x 75.08 x 7.90 |
Weight (g) | 156.00 |
Battery capacity (mAh) | 3400 |
Colours | Starry Night Black |
DISPLAY
Screen size (inches) | 6.41 |
Touchscreen | Yes |
Resolution | 1080×2340 pixels |
Aspect ratio | 19.5:9 |
HARDWARE
Processor | octa-core |
Processor make | Qualcomm Snapdragon 660 |
RAM | 6GB |
Internal storage | 128GB |
Expandable storage | Yes |
Expandable storage type | microSD |
Expandable storage up to (GB) | 256 |
CAMERA
Rear camera | 12-megapixel + 5-megapixel |
Rear autofocus | Yes |
Front camera | 24.8-megapixel |
SOFTWARE
Operating system | Android 8.1 Oreo |
CONNECTIVITY
Wi-Fi | Yes |
GPS | Yes |
Bluetooth | Yes |
Micro-USB | Yes |
Headphones | 3.5mm |
Number of SIMs | 2 |
SIM 1 | |
GSM/CDMA | GSM |
3G | Yes |
4G/ LTE | Yes |
SIM 2 | |
GSM/CDMA | GSM |
3G | Yes |
4G/ LTE | Yes |
SENSORS
Face unlock | Yes |
Fingerprint sensor | Yes |
Compass/ Magnetometer | Yes |
Proximity sensor | Yes |
Accelerometer | Yes |
Ambient light sensor | Yes |
Gyroscope | Yes |
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