Samsung Galaxy M31 vs Vivo Y81i
Key Feature Comparison
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At a Glance
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Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Quad core, 2 GHz, Cortex A53
6000 mAh
3260 mAh
6.4 inches
6.22 inches
Quad, 64MP + 8MP + 5MP + 5MP
Single, 13MP
4G
4G
Detailed Specs
Screen Size
6.4 inches
6.22 inches
Screen Type
Super AMOLED
IPS LCD
Screen Resolution
1080 x 2340 pixels
720 x 1520 pixels
Pixel Density
403 ppi
270 ppi
Aspect Ratio
19.5:9
-
Screen Protection
Gorilla Glass 3
Corning Gorilla Glass
Screen to Body Ratio
83.92%
82.66%
Screen Design
Regular notch
Regular notch
Screen Quality
FHD
-
Phone Variants
6GB 64GB, 8GB 128GB, 6GB 128GB
2GB 16GB
Expandable Storage
Yes
Yes
RAM Type
LPDDR4X
LPDDR3
Storage Type
UFS 2.1
eMMC 5.1
Expandable Storage Capacity
Yes, 512 GB
Yes, 256 GB
OTG Support
Yes
Yes
Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Operating System
Android v10 (Q)
Android v8.1 (Oreo)
GPU
Mali-G72 MP3
PowerVR GE8300
Chipset
Samsung Exynos 9 Octa 9611
MediaTek Helio A22
CPU
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Quad core, 2 GHz, Cortex A53
Custom User Interface
Samsung One UI
Funtouch OS
Clock Speed
2.3 GHz
2 GHz
Architecture
64 bit
-
Process Technology
10 nm
12 nm
Battery Capacity
6000 mAh
3260 mAh
Battery Removable
No
No
Battery Type
Li-ion
Li-ion
Charger Type
Fast, 15W
-
USB Type-C
Yes
No
Fast Charging
Yes
-
Announced On
25-Feb-20
5-Oct-18
Market Status
Available
Available
Brand
Samsung
Vivo
Model Number
SM-M315FZKDINS
-
Price Status
Confirmed
Confirmed
Price
Rs. 15,999
Rs. 9,800
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dolby Atmos
Active noise cancellation with dedicated mic
NFC
No
-
Network Support
4G
4G
Bluetooth
Yes
Yes
FM Radio
Yes
Yes
3.5mm Audio Jack
Yes
Yes
SIM Size
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
Wi-Fi
Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, b/g/n
Bluetooth Type
v5.0
v5.0
Audio Jack
3.5 mm
3.5 mm
SIM Slot(s)
Dual SIM, GSM+GSM, Dual VoLTE
Dual SIM, GSM+GSM
eSIM
No
No
Wi-Fi Features
Wi-Fi Direct, Mobile Hotspot
Mobile Hotspot
VoLTE
Yes
Yes
SIM 1 Bands
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20) / 850(band 26), 3G...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
SIM 2 Bands
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20) / 850(band 26), 3G...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
Front Video Recording
1920x1080 @ 30 fps
-
Front Camera Features
HDR
-
Front Camera Setup
Single, 32MP
Single, 5MP
Front Camera 1 Resolution
32 MP
5 MP
Front Camera 1 Type
f/2.0 Primary Camera
f/2.2, Depth Primary Camera
Front Camera 1 Lens
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
-
Front Sensor
Exmor RS
-
Front Aperture
f/2.0
f/2.2
Front Flash
No
-
Weight
191 grams
143 grams
Colors
Black, Blue
Black, Gold
Build
Back: Plastic
Back: Plastic
Dimensions
159.2 x 75.1 x 8.9 mm
155 x 75 x 7.7 mm
SAR Value
Head: 0.383 W/kg
-
OIS
No
-
Rear Flash
Yes, LED Flash
Yes, LED Flash
Rear Video Recording
3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 240 fps
-
Rear Camera Features
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Digital Zoom, Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Quad, 64MP + 8MP + 5MP + 5MP
Single, 13MP
Rear Camera 1 Resolution
64 MP
13 MP
Rear Camera 1 Type
f/1.8 (upto 8x Digital Zoom) Primary Camera
f/2.2 Primary Camera
Rear Camera 1 Lens
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
-
Rear Camera 2 Resolution
8 MP
-
Rear Camera 2 Type
f/2.2, Wide Angle, Ultra-Wide Angle Camera
-
Rear Camera 2 Lens
12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
-
Rear Camera 3 Resolution
5 MP
-
Rear Camera 3 Type
f/2.4, Macro Camera
-
Rear Camera 3 Lens
25 mm focal length, 5.0" sensor size, 1.12 micrometre pixel size
-
Rear Camera 4 Resolution
5 MP
-
Rear Camera 4 Type
f/2.2, Depth Camera
-
Rear Sensor
ISOCELL Plus
CMOS image sensor
Rear Aperture
f/1.8
f/2.2
Fingerprint Scanner
Yes
No
Fingerprint Scanner Position
Rear
-
Face Unlock
Yes
-