Vivo X21 features a 6.28 inches Full HD+ Super AMOLED display. It has a 12MP + 5MP dual rear camera setup and a 12MP front camera. Its fingerprint sensor is placed under the display. In addition, the X21 packs a 3200 mAh Li-Ion battery. It has an 18W fast charging and is powered by Qualcomm SDM675 Snapdragon 660 AIE processor.

Vivo X21 Specs
- Released: March, 2018
- Weight: 156.2g
- Thickness: 7.4mm
- Android Version: Android 8.1
- Memory: 128GB storage, microSD slot
- 15.95 cm (6.28 inches) Full HD+ Super AMOLED Display
- 12MP + 5MP | 12MP Front Camera
- 3200 mAh Li-ion Battery
- Qualcomm Snapdragon 660 AIE Processor
BODY | Dimensions- Weight- Front Panel- Back Panel- Frame- | 154.5 x 74.8 x 7.4 mm 156.2g Gorilla Glass 3 Aluminum Aluminum |
DISPLAY | Type- Size- Resolution- Protection- | Full HD+ Super AMOLED capacitive touchscreen 6.28 inches (85.2% screen-to-body ratio) 1080 x 2280 pixels, 19:9 ratio (402 ppi density) Corning Gorilla Glass 3 |
OS & PROCESSOR FEATURES | OS- Chip-set- CPU- GPU- | Android 8.1 (Oreo); Funtouch 4 Qualcomm SDM660 Snapdragon 660 (14 nm) Octa-core Adreno 512 |
MEMORY | Card slot- Internal- | microSD (Hybrid SIM slot) 128GB (6GB RAM) |
PRIMARY CAMERA | Dual- Features- Video- | 12 MP, f/1.8, dual pixel PDAF 5 MP, f/2.4, (depth) LED flash, HDR, panorama 1080p (30fps) |
SELFIE CAMERA | Single- Video- | 12 MP, f/2.0, (wide) 1080p (30fps) |
SOUND | Loudspeaker- 3.5mm jack- | Yes Yes |
CONNECTIVITY FEATURES | SIM- 2G- 3G- 4G- Speed- | Dual SIM Yes Yes Yes HSPA 42.2/5.76 Mbps, LTE-A (2CA) |
SENSORS | Fingerprint- Others- | Under display Accelerometer, proximity, compass |
BATTERY | Charging- | Non-removable 3200 mAh Li-Ion battery 18W fasty charging |
COLORS | Black, Ruby Red | |
MODELS | X21UD A | |
OTHERS | WLAN- Bluetooth- GPS- Radio- | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Yes (5.0) Yes (A-GPS, GLONASS) Yes |