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key specs | ||||
Display | 5.99-inch | 6.28-inch | 5.99-inch | |
Processor | Qualcomm Snapdragon 845 | MediaTek Helio P60 | Qualcomm Snapdragon 835 | |
Front Camera | 8-megapixel | 24-megapixel | 5-megapixel | |
Rear Camera | 16-megapixel + 24-megapixel | 12-megapixel | 12-megapixel | |
RAM | 6GB | 4GB | 6GB | |
Storage | 64GB | 64GB | 128GB | |
Battery Capacity | 3450mAh | 3245mAh | 3400mAh | |
OS | Android 8.1 Oreo | Android 8.1 | Android | |
Resolution | 1080x2160 pixels | 1080x2280 pixels | 1080x2160 pixels | |
general | ||||
Brand | Nubia | Vivo | Xiaomi | |
Model | Z18 | X21i | Mi MIX 2 | |
Release date | September 1, 2018 | May 1, 2018 | September 1, 2017 | |
Launched in India | No | - | - | |
Form factor | Touchscreen | Touchscreen | Touchscreen | |
Dimensions (mm) | 148.58 x 72.00 x 8.55 | 154.37 x 74.98 x 6.99 | 151.80 x 75.50 x 7.70 | |
Weight (g) | 172.00 | 159.00 | 185.00 | |
Battery capacity (mAh) | 3450 | 3245 | 3400 | |
Removable battery | No | - | No | |
Colours | Deep Dark Night, Nebula Red | Aurora White, Polar Night, Ruby Red | Black | |
display | ||||
Screen size (inches) | 5.99 | 6.28 | 5.99 | |
Touchscreen | Yes | Yes | Yes | |
Resolution | 1080x2160 pixels | 1080x2280 pixels | 1080x2160 pixels | |
Pixels per inch (PPI) | 428 | - | 403 | |
hardware | ||||
Processor | 1.2GHz octa-core | 2GHz octa-core | octa-core | |
Processor make | Qualcomm Snapdragon 845 | MediaTek Helio P60 (MT6771) | Qualcomm Snapdragon 835 | |
RAM | 6GB | 4GB | 6GB | |
Internal storage | 64GB | 64GB | 128GB | |
Expandable storage | No | Yes | No | |
Expandable storage type | - | microSD | - | |
Expandable storage up to (GB) | - | 256 | - | |
camera | ||||
Rear camera | 16-megapixel (f/1.6) + 24-megapixel (f/1.6) | 12-megapixel | 12-megapixel | |
Rear autofocus | Yes | - | - | |
Rear flash | Dual LED | Dual LED | Dual LED | |
Front camera | 8-megapixel (f/2.0) | 24-megapixel | 5-megapixel | |
software | ||||
Operating system | Android 8.1 Oreo | Android 8.1 | Android | |
Skin | Nubia UI 6.0 | Funtouch OS 4 | MIUI | |
connectivity | ||||
Wi-Fi | Yes | Yes | Yes | |
Wi-Fi standards supported | 802.11 b/g/n/ac | 802.11 b/g/n | 802.11 a/b/g/n/ac | |
GPS | Yes | Yes | Yes | |
Bluetooth | Yes, v 5.00 | Yes | Yes, v 5.00 | |
Number of SIMs | 2 | 2 | 2 | |
USB OTG | - | Yes | No | |
FM | - | Yes | No | |
NFC | - | - | Yes | |
Infrared | - | - | No | |
Wi-Fi Direct | - | - | No | |
Mobile High-Definition Link (MHL) | - | - | No | |
sim 1 | ||||
SIM Type | Nano-SIM | Nano-SIM | Nano-SIM | |
GSM/CDMA | - | GSM | GSM | |
3G | - | Yes | Yes | |
4G/ LTE | - | Yes | Yes | |
sim 2 | ||||
SIM Type | Nano-SIM | Nano-SIM | Nano-SIM | |
GSM/CDMA | - | GSM | GSM | |
3G | - | Yes | Yes | |
4G/ LTE | - | Yes | Yes | |
sensors | ||||
Compass/ Magnetometer | Yes | - | Yes | |
Proximity sensor | Yes | Yes | Yes | |
Ambient light sensor | Yes | Yes | Yes | |
Gyroscope | Yes | Yes | Yes | |
Accelerometer | - | Yes | Yes | |
Barometer | - | - | Yes | |
Temperature sensor | - | - | No | |
ratings | ||||
Overall NDTV Rating | - | - | Read Review | |
Design Rating | - | - | ||
Display Rating | - | - | ||
Software Rating | - | - | ||
Performance Rating | - | - | ||
Battery Life Rating | - | - | ||
Camera Rating | - | - | ||
Value for Money Rating | - | - |