vivo X21
Platform
| GPU | Adreno 512 |
| CPU | Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Chipset | Qualcomm SDM660 Snapdragon 660 (14 nm) |
| OS | Android 8.1 (Oreo), Funtouch 4 |
Memory
eMMC 5.1 | |
| Internal | 64GB 6GB RAM, 128GB 6GB RAM |
| Card slot | microSDXC (uses shared SIM slot) |
Main Camera
| Video | 1080p@30fps |
| Features | LED flash, HDR, panorama |
| Dual | 12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF 5 MP, f/2.4, (depth) |
Selfie camera
| Video | 1080p@30fps |
| Single | 12 MP, f/2.0, (wide), 1/2.8", 1.28µm |
Display
| Protection | Corning Gorilla Glass 3 |
| Resolution | 1080 x 2280 pixels, 19:9 ratio (~402 ppi density) |
| Size | 6.28 inches, 98.4 cm2 (~85.2% screen-to-body ratio) |
| Type | Super AMOLED |
Body
| SIM | Hybrid Dual SIM (Nano-SIM, dual stand-by) |
| Build | Glass front (Gorilla Glass 3), aluminum back, aluminum frame |
| Weight | 156.2 g (5.50 oz) |
| Dimensions | 154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in) |
Battery
| Charging | Fast charging 18W |
| Type | Li-Ion 3200 mAh, non-removable |
Sound
32-bit/192kHz audio | |
| 3.5mm jack | Yes |
| Loudspeaker | Yes |
Features
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass |
Misc
| Price | About 450 EUR |
| Models | 1725, X21A |
| Colors | Black, Aurora White, Ruby Red |
Comms
| USB | microUSB 2.0, USB On-The-Go |
| Radio | FM radio |
| NFC | No |
| GPS | Yes, with A-GPS, GLONASS |
| Bluetooth | 5.0, A2DP, LE |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
Launch
| Status | Available. Released 2018, March |
| Announced | 2018, March |
Network
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| 4G bands | 1, 2, 3, 5, 8, 34, 38, 39, 40, 41 |
| 3G bands | HSDPA 850 / 900 / 1900 / 2100 |
CDMA 800 & TD-SCDMA | |
| 2G bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Technology |