Compare specs
vivo X21 UD
network
- Technology GSM / CDMA / HSPA / LTE
- 2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
- 3G bands HSDPA 850 / 900 / 1900 / 2100
- 4G bands 1, 2, 3, 5, 8, 34, 38, 39, 40, 41
- Speed HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps
launch
- Announced 2018, March
- Status Available. Released 2018, March
body
- Dimensions 154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in)
- Weight 156.2 g (5.50 oz)
- Build Glass front (Gorilla Glass 3), aluminum back, aluminum frame
- SIM Hybrid Dual SIM (Nano-SIM, dual stand-by)
display
- Type Super AMOLED capacitive touchscreen, 16M colors
- Size 6.28 inches, 98.4 cm2 (~85.2% screen-to-body ratio)
- Resolution 1080 x 2280 pixels, 19:9 ratio (~402 ppi density)
platform
- OS Android 8.1 (Oreo); Funtouch 4
- Chipset Qualcomm SDM660 Snapdragon 660 (14 nm)
- CPU Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
- GPU Adreno 512
memory
- Card slot microSDXC (uses shared SIM slot)
- Internal 128GB 6GB RAM
main camera
- Modules 12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF 5 MP, f/2.4, (depth)
- Features LED flash, HDR, panorama
- Video 1080p@30fps
selfie camera
- Modules 12 MP, f/2.0, (wide), 1/2.8", 1.28µm
- Video 1080p@30fps
sound
- Loudspeaker Yes
- 3.5mm jack Yes
comms
- WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
- Bluetooth 5.0, A2DP, LE
- GPS Yes, with A-GPS, GLONASS
- USB microUSB 2.0, USB On-The-Go
features
- Sensors Fingerprint (under display, optical), accelerometer, proximity, compass
battery
- Non-removable Li-Ion 3200 mAh battery
- Charging Fast charging 18W
misc
- Colors Black, Ruby Red