Full Comparison of Xiaomi Poco X3 vs Vivo V21 -Tecinfoz
Xiaomi Poco X3

Rs. 41,999

Display 6.7 Inches
Resolution 1080 x 2400 Pixels (~395 PPI)
Built in 64/128GB Built-in, 6GB RAM, UFS 2.1
Front Camera 20 MP, f/2.2, (wide), 1/3.4", HDR, Panorama, Video ([email protected])
Back Camera Quad Camera: 64 MP, f/1.9, (wide), 1/1.73", PDAF + 13 MP, f/2.2, (ultrawide) + 2 MP, f/2.4, (macro) + 2 MP, f/2.4, (depth), Dual LED Flash
Battery (Li-Po Non removable), 5160 mAh
CPU Octa-core (2 x 2.3 GHz Kryo 470 Gold + 6 x 1.8 GHz Kryo 470 Silver)
OS
Weight 215 g
VS
Vivo V21

Rs. 59,999

Display 6.44 Inches
Resolution 1080 x 2404 Pixels (~409 PPI)
Built in 128GB Built-in, 8GB RAM, UFS 2.2
Front Camera 44 MP, f/2.0, (wide), AF, OIS, HDR, With Dual LED Flash, Video (4K@30fps (no OIS), 1080p@30fps)
Back Camera Triple Camera: 64 MP, f/1.9, 26mm (wide), 1/1.72", PDAF + 8 MP, f/2.2, 16mm (ultrawide), 1/4.0", AF + 2 MP, f/2.4, (depth), dual-LED dual-tone flash
Battery (Li-Po Non removable), 4000 mAh
CPU Octa-core (2 x 2.4 GHz Cortex-A76 + 6 x 2.0 GHz Cortex-A55)
OS Android 11 OS
Weight 176 g
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Network
Band2G SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900
Band 3G HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
Band 4G LTE band 1(2100), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300), 41(2500)
Band 5G - -
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Body
OS Android 10 OS Android 11 OS
Ui MIUI Funtouch OS 11.1
Dimension 165.3 x 76.8 x 9.4 mm 159.7 x 73.9 x 7.3 mm
Weight 215 g 176 g
Sim Hybrid Dual SIM, Dual Standby, (Nano-SIM) Hybrid Dual SIM, Dual Standby, (Nano-SIM)
Color Cobalt Blue, Shadow Gray Dusk Blue, Sunset Dazzle, Arctic White
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Display
Technology IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch AMOLED Capacitive Touchscreen, 16M Colors, Multitouch
Size 6.7 Inches 6.44 Inches
Resolution 1080 x 2400 Pixels (~395 PPI) 1080 x 2404 Pixels (~409 PPI)
Extra Features HDR10, 120Hz refresh rate, 450 nits typ. brightness (advertised) 90Hz, HDR10+, 500 nits (typ)
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Processor
CPU Octa-core (2 x 2.3 GHz Kryo 470 Gold + 6 x 1.8 GHz Kryo 470 Silver) Octa-core (2 x 2.4 GHz Cortex-A76 + 6 x 2.0 GHz Cortex-A55)
Chipset Qualcomm SM7150-AC Snapdragon 732G (8 nm) MediaTek MT6853 Dimensity 800U 5G (7 nm)
GPU Adreno 618 Mali-G57 MC3
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Memory
Built-in 64/128GB Built-in, 6GB RAM, UFS 2.1 128GB Built-in, 8GB RAM, UFS 2.2
Card MicroSDXC (uses shared SIM slot) microSDXC (dedicated slot)
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Camera
Main Back Camera:Quad Camera: 64 MP, f/1.9, (wide), 1/1.73", PDAF + 13 MP, f/2.2, (ultrawide) + 2 MP, f/2.4, (macro) + 2 MP, f/2.4, (depth), Dual LED Flash Back Camera:Triple Camera: 64 MP, f/1.9, 26mm (wide), 1/1.72", PDAF + 8 MP, f/2.2, 16mm (ultrawide), 1/4.0", AF + 2 MP, f/2.4, (depth), dual-LED dual-tone flash
Features Geo-tagging, touch focus, face detection, HDR, panorama, Video ([email protected], [email protected]/120fps, [email protected]; gyro-EIS) OIS, Eye Autofocus, Night, Ultra-Wide Night, Ultra Stable Video, Super Macro, Bokeh Portrait, Multi-Style Portrait, HDR, panorama, Video (4K@30fps, 1080p@30/60fps
Front Front Camera:20 MP, f/2.2, (wide), 1/3.4", HDR, Panorama, Video ([email protected]) Front Camera:44 MP, f/2.0, (wide), AF, OIS, HDR, With Dual LED Flash, Video (4K@30fps (no OIS), 1080p@30fps)
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Features
Sensors Accelerometer, Compass, Fingerprint (side mounted), Gyro, Proximity Accelerometer, Compass, Fingerprint (under display, optical), Gyro, Proximity
Audio 3.5mm Audio Jack, MP4/DivX/XviD/WMV/H.265 player, MP3/WAV/eAAC+/FLAC player, Speaker Phone 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 Glass front + Gorilla Glass 5), Aluminum frame, Plastic back, IP53 splash-proof, Active noise cancellation with dedicated mic, Photo/video editor, Document viewer Glass front, plastic back, plastic frame, Active noise cancellation with dedicated mic, Document viewer, Photo/video editor
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Connectivity
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 v5.1 with A2DP, LE v5.1 with A2DP, LE
GPS A-GPS support & Glonass, BDS Yes + A-GPS support, & GLONASS, BDS
USB USB Type-C 2.0, USB On-The-Go USB Type-C 2.0, USB On-The-Go
NFC Yes no
Data GPRS, Edge, 3G (HSPA 42.2/5.76 Mbps), 4G LTE-A GPRS, Edge, 3G (HSPA 42.2/5.76 Mbps), 4G, LTE
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Battery
Capacity (Li-Po Non removable), 5160 mAh (Li-Po Non removable), 4000 mAh
Charging - Fast charging 33W, 62% in 30 min, 100% in 65 min (advertised) - Fast charging 33W, 63% in 30 min (advertised)

We are not guarantee that all the specifications regarding this mobile is 100% correct.