Oppo K1 vs Oppo Find X vs Vivo X21 comparison

Show Only Differences Highlight Differences	Oppo K1	Oppo Find X	Vivo X21
ratings
Overall NDTV Rating	Read Review	Read Review	Read Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display	6.41-inch	6.42-inch	6.28-inch
Processor	Qualcomm Snapdragon 660	Qualcomm Snapdragon 845	Qualcomm Snapdragon 660
Front Camera	25-megapixel	25-megapixel	12-megapixel
Rear Camera	16-megapixel + 2-megapixel	16-megapixel + 20-megapixel	12-megapixel + 5-megapixel
RAM	4GB	8GB	6GB
Storage	64GB	256GB	128GB
Battery Capacity	3600mAh	3730mAh	3200mAh
OS	Android 8.1 Oreo	Android 8.1	Android 8.1
Resolution	1080x2340 pixels	1080x2340 pixels	1080x2280 pixels
general
Brand	Oppo	Oppo	Vivo
Model	K1	Find X	X21
Release date	February 1, 2019	June 1, 2018	March 1, 2018
Launched in India	Yes	Yes	Yes
Form factor	Touchscreen	Touchscreen	Touchscreen
Body type	Plastic	Glass	-
Dimensions (mm)	158.30 x 75.50 x 7.40	156.70 x 74.30 x 9.40	154.50 x 74.80 x 7.40
Weight (g)	156.00	186.00	156.20
Battery capacity (mAh)	3600	3730	3200
Removable battery	No	No	No
Wireless charging	No	-	-
Colours	Astral Blue, Piano Black	Bordeaux Red, Glacier Blue	Black, Gold
Fast charging	-	VOOC	Proprietary
display
Screen size (inches)	6.41	6.42	6.28
Touchscreen	Yes	Yes	Yes
Resolution	1080x2340 pixels	1080x2340 pixels	1080x2280 pixels
Protection type	Gorilla Glass	Gorilla Glass	-
Aspect ratio	19.5:9	19.5:9	19:9
hardware
Processor	2.2GHz octa-core	2.5GHz octa-core (4x2.8GHz + 4x1.7GHz)	2.2GHz octa-core
Processor make	Qualcomm Snapdragon 660	Qualcomm Snapdragon 845	Qualcomm Snapdragon 660
RAM	4GB	8GB	6GB
Internal storage	64GB	256GB	128GB
Expandable storage	Yes	-	Yes
Expandable storage type	microSD	-	microSD
Expandable storage up to (GB)	256	-	256
Dedicated microSD slot	Yes	-	-
camera
Rear camera	16-megapixel + 2-megapixel	16-megapixel (f/2.0, 1.22-micron) + 20-megapixel (f/2.0, 1.0-micron)	12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)
Rear autofocus	Yes	Phase detection autofocus	Phase detection autofocus
Rear flash	Yes	LED	LED
Front camera	25-megapixel	25-megapixel (f/2.0)	12-megapixel (f/2.0)
Pop-Up Camera	-	Yes	-
software
Operating system	Android 8.1 Oreo	Android 8.1	Android 8.1
Skin	ColorOS 5.2	Color OS 5.1	FunTouch 4.0
connectivity
Wi-Fi	Yes	Yes	Yes
Wi-Fi standards supported	802.11 a/b/g/n/ac	802.11 a/b/g/n/ac	802.11 a/b/g/n/ac
GPS	Yes	Yes	Yes
Bluetooth	Yes, v 5.00	Yes, v 5.00	Yes, v 5.00
NFC	No	-	No
USB OTG	Yes	-	Yes
Micro-USB	Yes	-	Yes
Headphones	Yes	No	3.5mm
FM	No	-	No
Active 4G on both SIM cards	Yes	-	-
USB Type-C	-	Yes	-
Number of SIMs	-	2	2
Infrared	-	-	No
sensors
Fingerprint sensor	Yes	-	Yes
Compass/ Magnetometer	Yes	Yes	Yes
Proximity sensor	Yes	Yes	Yes
Accelerometer	Yes	Yes	Yes
Ambient light sensor	Yes	-	Yes
Gyroscope	Yes	Yes	Yes
Face unlock	-	Yes	-
sim 1
SIM Type	-	Nano-SIM	Nano-SIM
GSM/CDMA	-	GSM + CDMA	GSM
3G	-	Yes	Yes
4G/ LTE	-	Yes	Yes
sim 2
SIM Type	-	Nano-SIM	Nano-SIM
GSM/CDMA	-	GSM + CDMA	GSM
3G	-	-	Yes
4G/ LTE	-	-	Yes

Related Comparisons

Popular Mobile Brands