Oppo A57s vs Vivo Y21i

Key Specs

Battery
Battery	5000 mAh	4500 mAh
Display
Display	6.56 inches (16.66 cm)	6.53 inches (16.59 cm)
Front Camera
Front Camera	8 MP	16 MP
Processor
Processor	MediaTek Helio G35	Qualcomm Snapdragon 460
RAM
RAM	4 GB	-
Rear Camera
Rear Camera	50 MP + 2 MP	16 MP + 2 MP + 2 MP

Battery

Capacity
Capacity	5000 mAh	4500 mAh
Quick Charging
Quick Charging	Yes, Super VOOC, 33W: 100 % in 69 minutes	Yes, Fast
Removable
Removable	No	No
Type
Type	Li-Polymer	Li-Polymer
USB Type-C
USB Type-C	Yes	Yes

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	-	4616 x 3464 Pixels
Resolution
Resolution	-	16 MP, Primary Camera
Settings
Settings	-	Exposure compensation, ISO control
Shooting Modes
Shooting Modes	-	Continuous Shooting High Dynamic Range mode (HDR)

Design

Build Material
Build Material	Back: Plastic	-
Colours
Colours	Starry Black, Sky Blue	-
Height
Height	163.8 mm	-
Ruggedness
Ruggedness	Dust proof	-
Thickness
Thickness	8 mm	-
Waterproof
Waterproof	Yes, Splash proof, IP5X, IPX4	-
Weight
Weight	187 grams	-
Width
Width	75 mm	-

Display

Aspect Ratio
Aspect Ratio	20:9	-
Bezel-less display
Bezel-less display	Yes with waterdrop notch	-
Bezelless Display
Bezelless Display	-	Yes with waterdrop notch
Brightness
Brightness	600 nits	-
Display Type
Display Type	IPS LCD	IPS LCD
Pixel Density
Pixel Density	269 ppi	269 ppi
Resolution
Resolution	720x1612 px (HD+)	-
Screen Protection
Screen Protection	Yes	-
Screen Size
Screen Size	6.56 inches (16.66 cm)	6.53 inches (16.59 cm)
Screen to Body Ratio (calculated)
Screen to Body Ratio (calculated)	84.57 %	-
Touch Screen
Touch Screen	Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

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Front Camera

Camera Setup
Camera Setup	Single	-
Resolution
Resolution	8 MP f/2.0, Wide Angle, Primary Camera(26 mm focal length)	-

General

Brand
Brand	OPPO	vivo
Custom UI
Custom UI	ColorOS	Funtouch OS
Launch Date
Launch Date	-	August 27, 2023 (Unofficial)
Operating System
Operating System	Android v12	Android v11

Main Camera

Autofocus
Autofocus	Yes	-
Camera Features
Camera Features	Digital Zoom Auto Flash Face detection Touch to focus	-
Camera Setup
Camera Setup	Dual	-
Flash
Flash	Yes, LED Flash	-
Image Resolution
Image Resolution	8150 x 6150 Pixels	-
Resolution
Resolution	50 MP f/1.8, Wide Angle, Primary Camera(27 mm focal length)2 MP f/2.4, Depth Camera	-
Settings
Settings	Exposure compensation, ISO control	-
Shooting Modes
Shooting Modes	Continuous Shooting High Dynamic Range mode (HDR)	-
Video Recording
Video Recording	1920x1080 @ 30 fps	-

Multimedia

Audio Jack
Audio Jack	3.5 mm	3.5 mm
Loudspeaker
Loudspeaker	Yes	Yes

Network & Connectivity

Bluetooth
Bluetooth	Yes, v5.2	Yes, v5.0
GPS
GPS	Yes with A-GPS, Glonass	Yes with A-GPS
NFC
NFC	Yes	-
Network Support
Network Support	5G Not Supported in India, 4G Supported in India, 3G, 2G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SIM 1
SIM 1	4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available	4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM 2
SIM 2	4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available	4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 3G Bands: UMTS 1900 / 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	Mass storage device, USB charging
VoLTE
VoLTE	Yes	-
Wi-Fi
Wi-Fi	Yes, Wi-Fi 5 (802.11 a/b/g/n/ac)	Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features
Wi-Fi Features	Mobile Hotspot	Mobile Hotspot

Performance

Architecture
Architecture	64 bit	64 bit
CPU
CPU	Octa core (2.3 GHz, Quad core, Cortex A53 + 1.8 GHz, Quad core, Cortex A53)	Octa core (1.8 GHz, Quad core, Kryo 240 + 1.8 GHz, Quad core, Kryo 240)
Chipset
Chipset	MediaTek Helio G35	Qualcomm Snapdragon 460
Fabrication
Fabrication	12 nm	11 nm
Graphics
Graphics	PowerVR GE8320	Adreno 610
Ram
RAM	-	4 GB

Sensors

Fingerprint Sensor
Fingerprint Sensor	Yes	Yes
Fingerprint Sensor Position
Fingerprint Sensor Position	Side	Side
Other Sensors
Other Sensors	Light sensor, Proximity sensor, Accelerometer, Compass	Light sensor, Proximity sensor, Accelerometer, Gyroscope

Storage

Expandable Memory
Expandable Memory	Yes, Up to 1 TB	Yes, Up to 1 TB
Internal Memory
Internal Memory	64 GB	64 GB
Storage Type
Storage Type	eMMC 5.1	-
USB OTG
USB OTG	Yes	-