Vivo Y71i vs Zte Blade A31

Key Specs

Battery
Battery	3360 mAh	3000 mAh
Display
Display	6.0 inches (15.24 cm)	5.45 inches (13.84 cm)
Front Camera
Front Camera	5 MP	5 MP
Processor
Processor	Qualcomm Snapdragon 425 MSM8917	Unisoc SC9863A
RAM
RAM	2 GB	-
Rear Camera
Rear Camera	8 MP	8 MP

Battery

Capacity
Capacity	3360 mAh	3000 mAh
Removable
Removable	No	-
Type
Type	Li-ion	Li-ion
USB Type-C
USB Type-C	No	No

Camera

Autofocus
Autofocus	-	Yes
Camera Features
Camera Features	-	Digital Zoom Auto Flash
Camera Setup
Camera Setup	-	Single
Flash
Flash	-	Yes, LED Flash
Image Resolution
Image Resolution	-	3264 x 2448 Pixels
Resolution
Resolution	-	5 MP, Primary Camera

Design

Build Material
Build Material	Back: Aluminium	-
Colours
Colours	Black, Gold	Blue, Gray
Height
Height	155.8 mm	140 mm
Thickness
Thickness	7.8 mm	8.9 mm
Weight
Weight	150 grams	166 grams
Width
Width	75.7 mm	71 mm

Display

Aspect Ratio
Aspect Ratio	18:9	18:9
Bezel-less display
Bezel-less display	Yes	-
Bezelless Display
Bezelless Display	-	Yes
Display Type
Display Type	IPS LCD	IPS LCD
Pixel Density
Pixel Density	268 ppi	295 ppi
Resolution
Resolution	720x1440 px (HD+)	-
Screen Size
Screen Size	6.0 inches (15.24 cm)	5.45 inches (13.84 cm)
Screen to Body Ratio (calculated)
Screen to Body Ratio (calculated)	78.77 %	77.11 %
Screen to Body Ratio (claimed by the brand)
Screen to Body Ratio (claimed by the brand)	84.4 %	-
Touch Screen
Touch Screen	Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

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Front Camera

Flash
Flash	Yes, Screen flash	-
Resolution
Resolution	5 MP f/2.2, Primary Camera	-

General

Brand
Brand	vivo	ZTE
Custom UI
Custom UI	Funtouch OS	Android Go
Launch Date
Launch Date	July 23, 2018 (Official)	-
Operating System
Operating System	Android v8.1 (Oreo)	Android v11

Main Camera

Autofocus
Autofocus	Yes	-
Camera Features
Camera Features	Digital Zoom Auto Flash Face detection Touch to focus	-
Camera Setup
Camera Setup	Single	-
Flash
Flash	Yes, LED Flash	-
Image Resolution
Image Resolution	3264 x 2448 Pixels	-
Resolution
Resolution	8 MP f/2.0, Primary Camera	-
Sensor
Sensor	CMOS image sensor	-
Settings
Settings	Exposure compensation, ISO control	-
Shooting Modes
Shooting Modes	Continuous Shooting High Dynamic Range mode (HDR)	-

Multimedia

Audio Jack
Audio Jack	3.5 mm	3.5 mm
FM Radio
FM Radio	Yes	Yes
Fm Radio
FM Radio	-	Yes
Loudspeaker
Loudspeaker	Yes	Yes

Network & Connectivity

Bluetooth
Bluetooth	Yes, v4.2	Yes, v4.2
GPS
GPS	Yes with A-GPS, Glonass	Yes with A-GPS, Glonass
NFC
NFC	-	Yes
Network Support
Network Support	5G Not Supported in India, 4G Supported in India, 3G, 2G	5G Not Supported in India, 4G Not Supported in India, 3G, 2G
SAR Value
SAR Value	Head: 1.16 W/kg, Body: 0.96 W/kg	-
SIM 1
SIM 1	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	4G Bands: TD-LTE 2600(band 38) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 850(band 5) / 800(band 20) 3G Bands: UMTS 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM 2
SIM 2	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	4G Bands: TD-LTE 2600(band 38) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 850(band 5) / 800(band 20) 3G Bands: UMTS 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM Size
SIM Size	SIM1: Nano, SIM2: Nano	SIM1: Nano, SIM2: Nano
SIM Slot(s)
SIM Slot(s)	Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
USB Connectivity	Mass storage device, USB charging, microUSB 2.0	Mass storage device, USB charging, microUSB 2.0
VoLTE
VoLTE	Yes	Yes
Wi-Fi
Wi-Fi	Yes, Wi-Fi 4 (802.11 b/g/n)	Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features
Wi-Fi Features	Mobile Hotspot	Mobile Hotspot

Performance

Architecture
Architecture	64 bit	-
CPU
CPU	Quad core, 1.4 GHz, Cortex A53	Octa core, 1.6 GHz, Cortex A55
Chipset
Chipset	Qualcomm Snapdragon 425 MSM8917	Unisoc SC9863A
Fabrication
Fabrication	28 nm	28 nm
Graphics
Graphics	Adreno 308	-
RAM type
RAM Type	LPDDR3	-
Ram
RAM	-	2 GB

Sensors

Fingerprint Sensor
Fingerprint Sensor	No	No
Other Sensors
Other Sensors	Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope	Accelerometer

Storage

Expandable Memory
Expandable Memory	Yes, Up to 256 GB	Yes, Up to 128 GB
Internal Memory
Internal Memory	16 GB	32 GB
Storage Type
Storage Type	eMMC 5.1	-
USB OTG
USB OTG	Yes	-