OPPO A91 vs Vivo Y21d

OPPO A91

Rs. 39,999

OPPO A91
Key Specs
Display 6.4"
Battery 4025 mAh
Camera 48 MP + 8 MP + 2 MP + 2 MP
Storage 128 GB 8 GB RAM

Network
TechnologyGSM / CDMA / HSPA / LTE
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
 CDMA 800 & TD-SCDMA
3G bandsHSDPA 850 / 1700(AWS) / 1900 / 2100 - International
 HSDPA 850 / 900 / 2100 - Southeast Asia
4G bands1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International
 1, 3, 5, 7, 8, 38, 40, 41
 1, 3, 5, 8, 38, 40, 41 - Southeast Asia
 1, 3, 4, 5, 8, 34, 38, 39, 40, 41 - China
SpeedHSPA 42.2/11.5 Mbps, LTE-A
Launch
Announced2019, December 20
StatusAvailable. Released 2019, December
Body
Dimensions160.2 x 73.3 x 7.9 mm (6.31 x 2.89 x 0.31 in)
Weight172 g (6.07 oz)
BuildGlass front (Gorilla Glass 5), plastic back, plastic frame
SIMDual SIM (Nano-SIM, dual stand-by)
Display for OPPO A91
TypeAMOLED, 430 nits (typ)
Size6.4 inches, 100.4 cm2 (~85.5% screen-to-body ratio)
Resolution1080 x 2400 pixels, 20:9 ratio (~408 ppi density)
ProtectionCorning Gorilla Glass 5
Platform
OSAndroid 9.0 (Pie), ColorOS 6.1
ChipsetMediatek MT6771V Helio P70 (12nm)
CPUOcta-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPUMali-G72 MP3
Memory
Card slotmicroSDXC (dedicated slot)
Internal128GB 4GB RAM, 128GB 8GB RAM
 UFS 2.1
Main Camera
Quad48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.3, 119˚ (ultrawide), 1/4.0", 1.12µm
2 MP B/W, f/2.4, 1/5.0", 1.75µm
2 MP, f/2.4, (depth)
FeaturesLED flash, HDR, panorama
Video1080p@30fps, gyro-EIS
Selfie camera
Single16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
FeaturesHDR
Video1080p@30fps
Sound
Loudspeaker Yes
3.5mm jack Yes
Comms
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth4.2, A2DP, LE
GPSYes, with A-GPS, GLONASS, BDS
NFCNo
RadioFM radio
USBUSB Type-C 2.0, USB On-The-Go
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
TypeLi-Po 4025 mAh, non-removable
ChargingFast charging 20W, 50% in 30 min (advertised)
VOOC 3.0
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VIVO Y21D

Rs. 39,999

Vivo Y21d
Key Specs
Display 6.68""
Battery 6500 mAh
Camera 50 MP + 0.08 MP
Storage 128GB Built-in
Network
Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41
Speed HSPA, LTE
Launch
Announced 2025, September
Status Available. Released 2025, October 7
Body
Dimensions -
Weight -
Build Glass front, plastic frame, plastic back
SIM Nano-SIM + Nano-SIM
Display for Vivo Y21d
Type IPS LCD
Size 6.68 inches, 102.3 cm2 (~81.8% screen-to-body ratio)
Resolution 1608 × 720 pixels, 20:9 ratio (~270 ppi density)
Platform
OS Android 11, Funtouch 11.1
Chipset Mediatek MT6769 Helio G70 (12 nm)
CPU Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
GPU Mali-G52 2EEMC2
Memory
Card slot microSDXC (dedicated slot)
Internal 128GB 6GB RAM
Main Camera
Dual 50 MP, f/2.2, (wide), PDAF
0.08 MP, f/2.4, (macro)
Features LED flash
Video 1080p@30fps
Selfie camera
Single 5 MP, f/2.0, (wide)
Video 1080p@30fps
Sound
Loudspeaker Yes
3.5mm jack Yes
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.0, A2DP, LE
Positioning GPS, GLONASS, GALILEO, BDS
NFC No
Radio FM radio
USB USB Type-C 2.0, OTG
Features
Sensors Fingerprint (side-mounted), accelerometer, proximity, compass
Battery
Type 6500 mAh
Charging 18W wired