Realme 1 vs Nubia Z18 mini vs Vivo X21 comparison

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ratings
Overall NDTV RatingRead Review-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.00-inch5.70-inch6.28-inch
ProcessorMediaTek Helio P60 Qualcomm Snapdragon 660Qualcomm Snapdragon 660
Front Camera8-megapixel 8-megapixel12-megapixel
Rear Camera13-megapixel 24-megapixel12-megapixel + 5-megapixel
RAM6GB6GB6GB
Storage128GB64GB128GB
Battery Capacity3410mAh3450mAh3200mAh
OSAndroid 8.1Android 8.1 OreoAndroid 8.1
Resolution1080x2160 pixels1080x2160 pixels1080x2280 pixels
general
BrandRealmeNubiaVivo
Model1Z18 miniX21
Release dateMay 1, 2018April 1, 2018March 1, 2018
Launched in IndiaYes-Yes
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)156.00 x 75.20 x 7.80148.00 x 70.00 x 7.60154.50 x 74.80 x 7.40
Weight (g)155.00153.00156.20
Battery capacity (mAh)341034503200
ColoursDiamond Black, Moonlight Silver, Solar RedBlack, White, Blue, and PinkBlack, Gold
Removable battery-NoNo
Fast charging--Proprietary
display
Screen size (inches)6.005.706.28
TouchscreenYesYesYes
Resolution1080x2160 pixels1080x2160 pixels1080x2280 pixels
Aspect ratio18:9-19:9
Pixels per inch (PPI)402428-
hardware
Processorocta-core (4x2GHz + 4x2GHz)2.2GHz octa-core2.2GHz octa-core
Processor makeMediaTek Helio P60 (MT6771)Qualcomm Snapdragon 660Qualcomm Snapdragon 660
RAM6GB6GB6GB
Internal storage128GB64GB128GB
Expandable storageYesNoYes
Expandable storage typemicroSD-microSD
Expandable storage up to (GB)256-256
camera
Rear camera13-megapixel (f/2.2)24-megapixel12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)
Rear autofocusPhase detection autofocus-Phase detection autofocus
Rear flashLED-LED
Front camera8-megapixel (f/2.2)8-megapixel12-megapixel (f/2.0)
Front flashNo--
software
Operating systemAndroid 8.1Android 8.1 OreoAndroid 8.1
SkinColorOS 5.0Nubia UIFunTouch 4.0
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 b/g/n802.11 b/g/n/ac802.11 a/b/g/n/ac
GPSYesYesYes
BluetoothYes, v 4.20Yes, v 5.00Yes, v 5.00
USB OTGYes-Yes
Micro-USBYes-Yes
Headphones3.5mm-3.5mm
FMYes-No
Number of SIMs222
NFC--No
Infrared--No
sim 1
SIM TypeNano-SIM-Nano-SIM
GSM/CDMAGSM-GSM
3GYes-Yes
4G/ LTEYes-Yes
sim 2
SIM TypeNano-SIM-Nano-SIM
GSM/CDMAGSM-GSM
3GYes-Yes
4G/ LTEYes-Yes
sensors
Compass/ MagnetometerYesYesYes
Proximity sensorYesYesYes
AccelerometerYes-Yes
Ambient light sensorYesYesYes
GyroscopeYesYesYes
Fingerprint sensor--Yes

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