Samsung Galaxy A51 8GB vs OPPO A57 4GB

Key Specs
Display 6.5""
Battery 4000 mAh
Camera 48 MP + 12 MP + 5 MP + 5 MP
Storage 128GB Built-in

Network
TechnologyGSM / HSPA / LTE
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bandsHSDPA 850 / 900 / 1900 / 2100
 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bandsLTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500), 66(1700/2100)
SpeedHSPA, LTE-A
Launch
Announced2019, December
StatusAvailable. Released 2019, December
Body
Dimensions158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in)
Weight172 g (6.07 oz)
BuildGlass front (Gorilla Glass 3), plastic back, plastic frame
SIMSingle SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Display for Samsung Galaxy A51 8GB
TypeSuper AMOLED capacitive touchscreen, 16M colors
Size6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio)
Resolution1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
ProtectionCorning Gorilla Glass 3
Platform
OSAndroid 10.0; One UI 2
ChipsetExynos 9611 (10nm)
CPUOcta-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPUMali-G72 MP3
Memory
Card slotmicroSD, up to 1 TB (dedicated slot)
Internal64GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
Main Camera
Quad48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8痠, PDAF
12 MP, f/2.2, 13mm (ultrawide), 1.12痠
5 MP, f/2.4, 40mm (telephoto), dedicated macro camera
5 MP, f/2.2, (wide), 1/5.0", 1.12痠, depth sensor
FeaturesLED flash, panorama, HDR
Video2160p@30fps, 1080p@30/60/120fps; gyro-EIS
Selfie camera
Single32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8痠
FeaturesHDR
Video1080p@30fps
Sound
Loudspeaker Yes
3.5mm jack Yes
 Active noise cancellation with dedicated mic
Comms
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth5.0, A2DP, LE
GPSYes, with A-GPS, GLONASS, GALILEO, BDS
NFCYes
RadioFM radio
USB2.0, Type-C 1.0 reversible connector, USB On-The-Go
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 ANT+
Battery
 Non-removable Li-Po 4000 mAh battery
ChargingFast battery charging 15W
Talk timeUp to 32 h (3G)
Music playUp to 87 h
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OPPO A57 4GB

Rs. 54,999

OPPO A57 4GB
Key Specs
Display 6.44"
Battery 5000 mAh
Camera 13 MP + 2 MP
Storage 128GB Built-in, 4GB RAM
Network
TechnologyGSM / CDMA / HSPA / LTE / 5G
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
 CDMA 800 / 1900 & TD-SCDMA
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 2100
4G bands1, 3, 4, 5, 8, 34, 38, 39, 40, 41
5G bands1, 41, 78 SA/NSA
SpeedHSPA 42.2/5.76 Mbps, LTE-A, 5G (3.6+ Gbps DL)
Launch
Announced 2022, May 27
Status Available. Released 2022, June 6
Body
Dimensions -
Weight -
SIMDual SIM (Nano-SIM, dual stand-by)
Display for OPPO A57 4GB
TypeIPS LCD
Size6.44 inches, 104.7 cm2 (~84.4% screen-to-body ratio)
Resolution 1080 x 2400 pixels, 19.5:9 ratio (~409 ppi density)
Platform
OSAndroid 10, Funtouch 10.0
Chipset Mediatek MT6765G Helio G35 (12 nm)
CPU Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU PowerVR GE8320
Memory
Card slotNo
Internal 64GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM
 UFS 2.1
Main Camera
Dual13 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
2 MP, f/2.2, 16mm, 112˚ (ultrawide), 1/4.0", 1.12µm
FeaturesLED flash, HDR, panorama
Video4K@30fps, 1080p@30fps; gyro-EIS
Selfie camera
Single16 MP, f/2.0, (wide)
FeaturesHDR
Video1080p@30fps
Sound
Loudspeaker Yes, with stereo speakers
3.5mm jack Yes
Comms
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth5.0, A2DP, LE, aptX HD
GPSYes, with A-GPS, GLONASS, BDS, GALILEO
NFCNo
RadioNo
USBUSB Type-C 2.0, USB On-The-Go
Features
SensorsFingerprint (side-mounted), accelerometer, proximity, compass
Battery
Type Li-Po 5000 mAh, non-removable
ChargingFast charging 18W