On this page we compare specs vivo X21 UD Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260) with other phones , we compare external dimensions, compare screens and performance, the amount of RAM and memory for storing media data, battery capacity and characteristics of photo cameras, compare the presence of various sensors and functions.
| Hardware and OS | vivo X21 UD | |
|---|
| Operating system | Android 8.1 (Oreo); Funtouch 4 | |
| Processor | Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260) | |
| Chipset | Qualcomm SDM660 Snapdragon 660 (14 nm) | |
| GPU | Adreno 512 | |
| Internal memory | 128 GB, 6 GB RAM | |
| External memory | microSD, up to 256 GB (uses SIM 2 slot) | |
| Display | vivo X21 UD | other phones |
|---|
| Type | Super AMOLED | |
| Size | 6.28" inc | |
| Resolution | 1080 x 2280 px | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 85.2% | |
| Display area | 98.4 cm2 | |
| Display aspect ratio | 19:9 (height:width) | |
| Pixel Density | 402 PPI | |
| Colors | 16M | |
| Connectivity | vivo X21 UD | other phones |
|---|
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | |
| Network | GSM / CDMA / HSPA / LTE | |
| SIM card | Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 5.0, A2DP, LE | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | |
| USB | microUSB 2.0, USB On-The-Go | |
| Camera | vivo X21 UD | other phones |
|---|
| Main camera | 12 MP, Dual | |
| Specs | 12 MP, f/1.8, 1/2.55', 1.4µm, dual pixel PDAF
-5 MP, f/2.4, depth sensor | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | 12 MP, Single | |
| Multimedia | vivo X21 UD | other phones |
|---|
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | vivo X21 UD | other phones |
|---|
| Colors | Black, Ruby Red | |
| Body build | Front glass, aluminum body | |
| Dimensions | 154.5 x 74.8 x 7.4 mm | |
| Weight | 156.2 g | |
| Battery | vivo X21 UD | other phones |
|---|
| Battery capacity | 3200 mAh, Non-removable Li-Ion | |
| Other | vivo X21 UD | other phones |
|---|
| Release date | 2018, March | |
| Sensors | Fingerprint (under display), accelerometer, proximity, compass | |
