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Oppo A7 vs Nokia G21

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 / 1900 / 2100   HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - LATAM  
4G Network LTE   LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300), 41(2500)  
Dimensions 155.9 x 75.4 x 8.1mm   164.6 x 75.9 x 8.5 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)   Dual Sim, Dual Standby (Nano-SIM)  
Weight 168 g   190 g  
Display Type IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch  
Display Size 720 x 1520 Pixels (~271 PPI)   6.5 Inches   720 x 1600 Pixels (~269 PPI)  
Memory 64GB Built-in, 4GB RAM   64GB Built-in, 4GB RAM  
Card slot microSD Card, (supports upto 256GB)   microSDXC (dedicated slot)  
GPRS Yes Yes
EDGE 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, Wi-Fi Direct, hotspot  
BlueTooth v4.2 with A2DP, LE   v5.0 with A2DP, LE  
USB microUSB 2.0, USB On-The-Go   USB Type-C 2.0, USB On-The-Go  
NFC No   Yes  
GPS Yes + A-GPS support, & GLONASS, BDS, GALILEO   Yes + A-GPS support & Glonass, BDS  
Main Camera Geo-tagging, Phase detection, touch focus, Panorama, HDR, Video   Triple Camera: 50 MP, (wide), PDAF + 2 MP, (macro) + 2 MP, (depth), LED Flash   Phase detection, Geo-tagging, touch focus, face detection, panorama, HDR, Video (1080p@30fps)  
Front Camera 16 MP, f/2.0, HDR   8 MP, (wide), Video (1080p@30fps)  
OS Android V8.1 Oreo   Android 11 OS  
Chipset Qualcomm SDM450 Snapdragon 450 (14 nm)   Unisoc T606  
Processor 1.8 GHz Octa-Core Cortex-A53   1.6 Ghz Octa Core  
GPU Adreno 506   ARM Mali G57  
Sensors Accelerometer, Compass, Fingerprint (rear mounted) , Gyro, Proximity   Accelerometer, Fingerprint (side mounted), Proximity  
Browser HTML5   HTML5  
Sound 3.5mm Audio Jack, MP3/AAC+/WAV/Flac player, MP4/H.264 player, Speaker Phone   3.5mm Audio Jack, Speaker Phone  
Colors Glazing Blue, Dazzling Gold, Rose Pink   Nordic Blue, Dusk  
Battery (Li-ion Non removable), 4230 mAh   (Li-Po Non removable), 5050 mAh   - Fast charging 18W  
Misc Active noise cancellation with dedicated mic, Photo/video editor, Document viewer   SMS(threaded view), MMS, Email, Push Mail, IM   Document viewer/editor, Photo/video editor