Vivo S1 vs Karbonn KT81 comparison

Show Only Differences Highlight Differences	Vivo S1	Karbonn KT81
ratings
Overall NDTV Rating	Read Review	-
Design Rating		-
Display Rating		-
Software Rating		-
Performance Rating		-
Battery Life Rating		-
Camera Rating		-
Value for Money Rating		-
key specs
Display	6.38-inch	3.20-inch
Processor	MediaTek Helio P65	one-core
Front Camera	32-megapixel	No
Rear Camera	16-megapixel + 8-megapixel + 5-megapixel	3.2-megapixel
RAM	4GB	-
Storage	128GB	-
Battery Capacity	4500mAh	1000mAh
OS	Android Pie	Proprietary
Resolution	1080x2340 pixels	-
general
Brand	Vivo	Karbonn
Model	S1	KT81
Release date	July 1, 2019	May 1, 2012
Launched in India	Yes	-
Form factor	Touchscreen	Bar
Dimensions (mm)	159.53 x 75.23 x 8.13	-
Weight (g)	179.00	-
Battery capacity (mAh)	4500	1000
Removable battery	No	Yes
Fast charging	Proprietary	-
Wireless charging	No	-
Colours	Skyline Blue, Diamond Black	-
Alternate names	-	K81 Cosmos
display
Screen size (inches)	6.38	3.20
Touchscreen	Yes	Yes
Resolution	1080x2340 pixels	-
Aspect ratio	19.5:9	-
hardware
Processor	octa-core	one-core
Processor make	MediaTek Helio P65 (MT6768)	-
RAM	4GB	-
Internal storage	128GB	-
Expandable storage	No	No
Dedicated microSD slot	No	-
Expandable storage type	-	microSD
camera
Rear camera	16-megapixel (f/1.78) + 8-megapixel (f/2.2) + 5-megapixel (f/2.4)	3.2-megapixel
Front camera	32-megapixel (f/2.0)	No
Rear flash	-	LED
software
Operating system	Android Pie	Proprietary
Skin	Funtouch OS 9	-
connectivity
Wi-Fi	Yes	No
GPS	Yes	No
Bluetooth	Yes, v 5.00	Yes
USB OTG	Yes	No
Number of SIMs	2	2
NFC	-	No
Infrared	-	No
FM	-	Yes
Wi-Fi Direct	-	No
Mobile High-Definition Link (MHL)	-	No
sim 1
SIM Type	Nano-SIM	Regular
GSM/CDMA	-	GSM
3G	-	No
4G/ LTE	-	No
sim 2
SIM Type	Nano-SIM	Regular
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	No
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	No
Proximity sensor	Yes	No
Accelerometer	Yes	Yes
Ambient light sensor	Yes	No
Gyroscope	Yes	No
Barometer	-	No
Temperature sensor	-	No

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