samsung galaxy a51 vs samsung galaxy s21 in Pakistan

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Date Apr 2020 Jan 2021
Price Price In Rs Rs 49999 Rs 176499
Build OS Android 10 OS   Android 11 OS  
UI OneUI 2.0   One UI 3.1  
Dimensions 158.4 x 73.7 x 7.9 mm   151.7 x 71.2 x 7.9 mm  
Weight 172 g   171 g  
SIM Dual Sim, Dual Standby (Nano-SIM)   Dual Sim, Dual Standby, eSIM (Nano-SIM)  
Colors Prism, Crush Black, White, Blue, Pink   Phantom Gray, Phantom White, Phantom Violet, Phantom Pink  
Frequency 2G Band SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900   SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Band HSDPA 850 / 900 / 1900 / 2100   HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100  
4G Band LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 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), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100)  
5G Band 5G SA/NSA  
Processor CPU Octa-core (4 x 2.3 GHz Cortex-A73 + 4 x 1.7 GHz Cortex-A53)   Octa-core (1 x 2.9 GHz Cortex-X1 + 3 x 2.80 GHz Cortex-A78 + 4 x 2.2 GHz Cortex-A55)  
Chipset Exynos 9611 (10nm)   Exynos 2100 (5 nm)  
GPU Mali-G72 MP3   Mali-G78 MP14  
Display Technology Super AMOLED capacitive touchscreen, 16M colors, Multitouch   Dynamic AMOLED 2X Capacitive Touchscreen, 16M Colors, Multitouch  
Size 6.5 Inches   6.2 Inches  
Resolution 1080 x 2400 1080 x 2400
Protection Corning Gorilla Glass 3   Corning Gorilla Glass Victus  
Extra Features Eye Comfort Shield, Always-on display, 120Hz, HDR10+, 1300 nits (peak)  
Memory Built-in 128GB Built-in, 6GB RAM   128/256GB Built-in, 8GB RAM, UFS 3.1  
Card microSD card (supports up to 1TB) (dedicated slot)   No  
Camera Main Quad Camera: 48 MP, f/2.0, (wide), 1/2", PDAF + 12 MP, f/2.2, 13mm (ultrawide) + 5 MP, f/2.4, (macro) + 5 MP, f/2.2, depth sensor, LED Flash   Triple Camera: 12 MP, f/1.8, 26mm (wide), 1/1.76", Dual Pixel PDAF, OIS + 64 MP, f/2.0, 28mm (telephoto), 1/1.76", PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom + 12 MP, f/2.2, 13mm, (ultrawide), 1/2.55", Super Steady video, LED Flash  
Features Geo-tagging, touch focus, face detection, panorama, HDR, Video ([email protected])   Geo-tagging, touch focus, face/smile detection, Auto HDR, panorama, Video (8K@30fps, 4K@30/60fps, 1080p@30/60/120fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS)
Front 32 MP, f/2.2, 25mm (wide), 1/2.8   10 MP, f/2.2, 26mm (wide), 1/3.24  
Connectivity WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot   Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot  
Bluetooth v5.0 with A2DP, LE   v5.0 with A2DP, LE  
GPS Yes + A-GPS support & Glonass, BDS, GALILEO   Yes + A-GPS support & Glonass, BDS, GALILEO  
Radio FM Radio  
USB 2.0, Type-C 1.0 reversible connector   USB Type-C 3.2, USB On-The-Go  
NFC Yes   Yes  
Data GPRS, EDGE, 3G HSPA, 4G LTE-A   GPRS, Edge, 3G (HSPA 42.2/5.76 Mbps), 4G LTE-A (CA), 5G capable  
Features Sensors Accelerometer, gyro, proximity, compass, Fingerprint (under display, optical)   Accelerometer, Barometer, Compass, Fingerprint (under display, ultrasonic), Gyro, Proximity, SpO2  
Audio 3.5mm Audio Jack, MP3/WAV/WMA/eAAC+/FLAC player, MP4/WMV/H.265 player, Speaker Phone   32-bit/384kHz audio, MP4/DivX/XviD/WMV/H.265 player, MP3/WAV/WMA/eAAC+/FLAC player, Speaker Phone  
Browser HTML5   HTML5  
Messaging SMS(threaded view), MMS, Email, Push Mail, IM   SMS(threaded view), MMS, Email, Push Mail, IM  
Games Built-in + Downloadable   Built-in + Downloadable  
Torch Yes   Yes  
Extra Active noise cancellation with dedicated mic, ANT+ support, Photo/video editor, Document viewer   Glass front + Gorilla Glass Victus), Plastic back, Aluminum frame, Stylus support, Tuned by AKG, Active noise cancellation with dedicated mic, ANT+, Bixby natural language commands and dictation, Samsung DeX, Samsung Wireless DeX (desktop experience suppo
Battery Capacity (Li-Po Non removable), 4000 mAh   (Li-Po Non removable), 4000 mAh