Vivo S1 vs Vivo Y91i comparison

Show Only Differences Highlight Differences	Vivo S1	Vivo Y91i
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	6.22-inch
Processor	MediaTek Helio P65	MediaTek Helio P22
Front Camera	32-megapixel	5-megapixel
Rear Camera	16-megapixel + 8-megapixel + 5-megapixel	13-megapixel
RAM	4GB	2GB
Storage	128GB	16GB
Battery Capacity	4500mAh	4030mAh
OS	Android Pie	Android 8.1
Resolution	1080x2340 pixels	720x1520 pixels
general
Brand	Vivo	Vivo
Model	S1	Y91i
Release date	July 1, 2019	March 1, 2019
Launched in India	Yes	Yes
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	159.53 x 75.23 x 8.13	155.11 x 75.09 x 8.28
Weight (g)	179.00	163.50
Battery capacity (mAh)	4500	4030
Removable battery	No	-
Fast charging	Proprietary	-
Wireless charging	No	-
Colours	Skyline Blue, Diamond Black	Fusion Black, Ocean Blue
display
Screen size (inches)	6.38	6.22
Touchscreen	Yes	Yes
Resolution	1080x2340 pixels	720x1520 pixels
Aspect ratio	19.5:9	19:9
hardware
Processor	octa-core	octa-core
Processor make	MediaTek Helio P65 (MT6768)	MediaTek Helio P22 (MT6762)
RAM	4GB	2GB
Internal storage	128GB	16GB
Expandable storage	No	Yes
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)	13-megapixel (f/2.2)
Front camera	32-megapixel (f/2.0)	5-megapixel (f/1.8)
Rear autofocus	-	Yes
Rear flash	-	Yes
software
Operating system	Android Pie	Android 8.1
Skin	Funtouch OS 9	Funtouch OS 4.5
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes, v 5.00	Yes, v 5.00
USB OTG	Yes	Yes
Number of SIMs	2	2
Micro-USB	-	Yes
Headphones	-	3.5mm
FM	-	Yes
sim 1
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
sim 2
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
sensors
Fingerprint sensor	Yes	No
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	Yes	Yes
Face unlock	-	Yes