vivo S2 5G vs vivo Y91i 3GB RAM: Price, Specs & Features Comparison
Launch Date
August 6, 2026 (Official)
March 9, 2020 (Official)
Operating System(OS)
Android v16
Android v8.1 (Oreo)
Security Updates
5 Year
-
Custom UI
Origin OS
Funtouch OS
Flash
Yes, LED Flash
Yes, LED Flash
Image Resolution
3072 x 4096 Pixels
4128 x 3096 Pixels
Shooting Modes
SuperMoon
Continuous Shooting
High Dynamic Range mode (HDR)
Video Recording Features
4k @30 fps
Full HD @30/60 fps
-
Settings
-
Exposure compensation, ISO control
Camera Features
-
Digital Zoom
Auto Flash
Face detection
Touch to focus
Flash
Yes, Screen flash
-
Video Recording
4k @30 fps
Full HD @30 fps
-
Display Type
AMOLED
IPS LCD
Screen Size
6.83 inches (17.35 cm)
6.22 inches (15.8 cm)
Resolution
1260x2800 px (FHD+)
720x1520 px (HD+)
Peak Brightness
3000 nits
-
Pixel Density
449 ppi
270 ppi
Screen to Body Ratio (calculated)
91.03 %
82.6 %
Bezel-less Display
Yes with punch-hole display
Yes with waterdrop notch
Screen to Body Ratio (claimed by the brand)
93.82 %
88.6 %
Height
164.42 mm
155.1 mm
Weight
197 grams
163.5 grams
Build Material
Back: Plastic, Polycarbonate
Back: Plastic
Water Resistance
Yes, Water resistant, IP68, IP69, (up to 30 minutes in a depth of 1.5 meter)
-
SIM Slot(s)
Dual SIM
Dual SIM
SIM Type
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
Network Support
5G, 4G
5G Not Supported, 4G
SIM 1
5G bands, 4G bands Expand
4G bands Expand
SIM 2
5G bands, 4G bands Expand
4G bands Expand
Wi-Fi
Yes, Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz
-
GPS
Yes with Glonass
Yes with A-GPS, Glonass
Wi-Fi Features
-
Yes, Wi-Fi 4 (802.11 b/g/n)
Near Field Communication
-
No
Capacity
7050 mAh
4030 mAh
Battery Type
Li-ion
Li-ion
Quick Charging
Yes, 44W Flash Charging
-
Battery Life (PC Mark)
14h 57m
-
Charging Time (20% to 100%)
1h 5m
-
Internal Storage
128 GB / 256 GB
16 GB / 32 GB
Storage Type
UFS 3.1
eMMC 5.1
Expandable Storage
No
Yes, Up to 256 GB
Fingerprint Sensor
Yes
No
Fingerprint Sensor Position
On-screen
-
Fingerprint Sensor Type
Optical
-
Other Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Processor
-
MediaTek Helio P22
RAM & Storage
-
2 GB RAM + 16 GB
2 GB RAM + 32 GB
3 GB RAM + 32 GB
Display
-
6.22", 720 x 1520 Resolution
