 
                                     
                                    Smartphones are evolving at a rapid pace and we now have better processors, cameras, and construction materials being used at every price level. Recently, we have also seen a lot of innovation when it comes to device security. Apple introduced FaceID last year with the iPhone X (Review) which replaced a fingerprint sensor with a TrueDepth camera. FaceID involves an infrared camera and a flood illuminator to accurately scan multiple points on the user's face in order to authenticate him or her. Another change that helps with smartphone design is the use of in-display fingerprint sensors. Vivo has already showcased this on its X20 Plus UD, as well as a concept phone called the Vivo Apex.
The Vivo X21 is the first smartphone in India to feature an in-display fingerprint scanner. It sports a 6.28-inch display with a resolution of 1080x2280 pixels and a 19:9 aspect ratio. It is powered by a Snapdragon 660 SoC and has 6GB of RAM on board. There is 128GB of internal storage which is expandable via the hybrid SIM slot up to 256GB. The X21 is a dual SIM device and has two Nano SIM slots. It runs on Funtouch OS 4 on top of Android 8.1 Oreo and has a 3200mAh non-removable battery. The dual camera module at the back consists of a 12-megapixel primary camera and a 5-megapixel depth sensor. The selfie camera is a 12-megapixel sensor that is also used for face-recognition.
| Product Name | Price in India | 
|---|---|
| Vivo X21 (128GB) - Black | ₹ 17,890 | 
| Vivo X21 (64GB) - Black | ₹ 23,999 | 
Vivo X21 price in India starts from ₹ 17,890. The lowest price of Vivo X21 is ₹ 17,890 at Flipkart on 31st October 2025. This Phone is available in 1 other variant like 128GB with colour options like Black and Red.
| Brand | Vivo | 
| Model | X21 | 
| Price in India | ₹17,890 | 
| Release date | March 2018 | 
| Launched in India | Yes | 
| Form factor | Touchscreen | 
| Dimensions (mm) | 154.50 x 74.80 x 7.40 | 
| Weight (g) | 156.20 | 
| Battery capacity (mAh) | 3200 | 
| Removable battery | No | 
| Fast charging | Proprietary | 
| Colours | Black | 
| Screen size (inches) | 6.28 | 
| Touchscreen | Yes | 
| Resolution | 1080x2280 pixels | 
| Aspect ratio | 19:9 | 
| Processor | 2.2GHz octa-core | 
| Processor make | Qualcomm Snapdragon 660 | 
| RAM | 6GB | 
| Internal storage | 64GB | 
| Expandable storage | Yes | 
| Expandable storage type | microSD | 
| Expandable storage up to (GB) | 256 | 
| Rear camera | 12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4) | 
| Rear autofocus | Phase detection autofocus | 
| Rear flash | LED | 
| Front camera | 12-megapixel (f/2.0) | 
| Operating system | Android 8.1 | 
| Skin | FunTouch 4.0 | 
| Wi-Fi | Yes | 
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | 
| GPS | Yes | 
| Bluetooth | Yes, v 5.00 | 
| NFC | No | 
| Infrared | No | 
| USB OTG | Yes | 
| Micro-USB | Yes | 
| Headphones | 3.5mm | 
| FM | No | 
| Number of SIMs | 2 | 
| SIM 1 | |
| SIM Type | Nano-SIM | 
| GSM/CDMA | GSM | 
| 3G | Yes | 
| 4G/ LTE | Yes | 
| Supports 4G in India (Band 40) | Yes | 
| SIM 2 | |
| SIM Type | Nano-SIM | 
| GSM/CDMA | GSM | 
| 3G | Yes | 
| 4G/ LTE | Yes | 
| Supports 4G in India (Band 40) | Yes | 
| Fingerprint sensor | Yes | 
| Compass/ Magnetometer | Yes | 
| Proximity sensor | Yes | 
| Accelerometer | Yes | 
| Ambient light sensor | Yes | 
| Gyroscope | Yes | 
 Vivo X21
                    ₹17,890
                    Vivo X21
                    ₹17,890
                 
                                     
                                     
                                     
                                     
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