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Vivo Y21 vs Oppo Reno 15

2G Network SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 850 / 900 / 2100 HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100  
4G Network LTE band 1(2100), 3(1800), 5(850), 8(900), 28(700), 38(2600), 40(2300), 41(2500) LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)  
5G Network SA/NSA  
Dimensions 164.3 x 76.1 x 8 mm 158 x 74.8 x 7.77mm (Twilight Blue), 7.89mm (Aurora White)  
Sim Type Dual Sim, Dual Standby (Nano-SIM) Nano-SIM + Nano-SIM + eSIM (max 2 at a time)  
Weight 182 g 197 g  
Display Type LCD capacitive Touchscreen, 16M Colors, Multitouch AMOLED Capacitive Touchscreen, 1B Colors   120Hz, HDR10+, 600 nits (typ), 1200 nits (HBM)  
Display Size 6.51 Inches , 720 x 1600 Pixels (~270 PPI) 6.59 Inches   1256 x 2760 Pixels (~460 PPI)  
Protection Corning Gorilla Glass 7i  
Memory 64/128GB Built-in, 4GB RAM (+1GB extended RAM) 256GB Built-in, 12GB RAM, UFS 3.1  
Card slot microSD Card, (supports up to 512GB) No  
GPRS Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth v5.0 with A2DP, LE v5.4 with A2DP, LE, aptX HD, LHDC 5  
USB USB Type-C, USB On-The-Go USB Type-C 2.0, OTG  
NFC No Yes  
GPS Yes + AGPS, GLONASS, BDS, GALILEO Yes + GPS, GLONASS, GALILEO, BDS, QZSS  
Main Camera Dual Camera: 13 MP, f/2.2, (wide), PDAF + 2 MP, f/2.4, (macro), LED Flash, Geo-tagging, Phase detection, Panorama, HDR, Video ([email protected]) Triple Camera: 50 MP, f/1.8, 26mm (wide), PDAF, OIS + 50 MP, f/2.8, 80mm (telephoto), PDAF, OIS, 3.5x optical zoom + 8 MP, f/2.2, 15mm, (ultrawide), 1/4.0", AF, LED Flash   Color spectrum sensor, HDR, panorama, Video (4K@30/60fps, 1080p@30/60/120fps, gyro-EIS, HDR)  
Front Camera 8 MP, f/2.0, (wide), Video ([email protected]) 50 MP, f/2.0, 18mm (ultrawide), AF, Panorama, HDR, Video (4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR)  
OS Android 11 OS Android 16 OS  
Chipset Mediatek MT6765 Helio P35 (12nm) Qualcomm SM7750-AB Snapdragon 7 Gen 4 (4 nm)  
Processor Octa-core (4 x 2.35 GHz Cortex-A53 + 4 x 1.8 GHz Cortex-A53) Octa-core (1 x 2.8 GHz Cortex-720 + 4 x 2.4 GHz Cortex-720 + 3 x 1.8 GHz Cortex-520)  
GPU PowerVR GE8320 Adreno 722  
Sensors Accelerometer, Compass, Fingerprint (side mounted), Gyro, Proximity Accelerometer, Compass, Fingerprint (under display, optical), Gyro, Proximity, BeaconLink calls via bluetooth, up to 200m  
Browser HTML5 HTML5  
Sound 3.5mm Audio Jack, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Speaker Phone Speaker Phone  
Colors Diamond Glow, Midnight Blue Twilight Blue, Aurora White  
Battery (Li-Po Non removable), 5000 mAh - Fast charging 18W 0% to 34% in 30 minutes 6500 mAh   - Fast battery 80W wired, 80W UFCS, 55W PPS, 13.5W PD, 13.5W QC, 100% in 50 min, Reverse wired  
Misc Active noise cancellation with dedicated mic, Document viewer, Photo/video editor SMS(threaded view), MMS, Email, Push Mail, IM   NFC (market/region dependent), Glass front + Gorilla Glass 7i), aluminum frame, glass back, IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)