Xiaomi Poco X3 Pro vs vivo iQOO U3

Phones Images
Xiaomi Poco X3 Pro vivo iQOO U3
PHONES
Phone Names Xiaomi Poco X3 Pro vivo iQOO U3
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41 - International1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41
5G bands-1, 28, 41, 77, 78 SA/NSA
EDGE-No
GPRS-Class 10
SpeedHSPA, LTEHSPA, LTE, 5G
TechnologyGSM / HSPA / LTEGSM / CDMA / HSPA / LTE / 5G
 1, 2, 3, 5, 8, 38, 40, 41 - IndiaCDMA 800
Launch
Announced2021, March 222020, December 14. Released 2020, December 18
StatusAvailable. Released 2021, March 24Discontinued
Body
BuildGlass front (Gorilla Glass 6), plastic back-
Dimensions165.3 x 76.8 x 9.4 mm (6.51 x 3.02 x 0.37 in)164.2 x 75.4 x 8.4 mm (6.46 x 2.97 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight215 g (7.58 oz)185.5 g (6.56 oz)
 IP53, dust and splash resistant-
Display
ProtectionCorning Gorilla Glass 6-
Resolution1080 x 2400 pixels, 20:9 ratio (~395 ppi density)1080 x 2408 pixels, 20:9 ratio (~401 ppi density)
Size6.67 inches, 107.4 cm2 (~84.6% screen-to-body ratio)6.58 inches, 104.3 cm2 (~84.2% screen-to-body ratio)
TypeIPS LCD, 120Hz, 2404Hz PWM, HDR10, 450 nits (typ)IPS LCD, 90Hz, HDR10, 460 nits (typ)
Platform
CPUOcta-core (1x2.96 GHz Kryo 485 Gold & 3x2.42 GHz Kryo 485 Gold & 4x1.78 GHz Kryo 485 Silver)Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
ChipsetQualcomm Snapdragon 860 (7 nm)Mediatek Dimensity 800U (7 nm)
GPUAdreno 640Mali-G57 MC3
OSAndroid 11, upgradable to Android 12, MIUI 13 for POCOAndroid 10, IQOO UI 1.5
Memory
Call records-Yes
Card slotmicroSDXC (uses shared SIM slot)No
Internal128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
Phonebook-Yes
 UFS 3.1UFS 2.2
Main Camera
Dual-48 MP, f/1.8, 25mm (wide), 1/2.0", 0.8µm, PDAF Auxiliary lens
FeaturesDual-LED flash, HDR, panoramaLED flash, HDR, panorama
Quad48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide), 1.0µm 2 MP (macro) Auxiliary lens-
Single20 MP, f/2.2, (wide), 1/3.4", 0.8µm1.3 MP
Video4K@30fps, 1080p@30/60/120/240fps, 1080p@960fps, gyro-EIS4K@30fps, 1080p@30fps
Selfie camera
FeaturesHDR, panoramaHDR
Single20 MP, f/2.2, (wide), 1/3.4", 0.8µm8 MP, f/2.0, (wide)
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker Yes, with stereo speakersYes
 24-bit/192kHz audio-
Comms
Bluetooth5.0, A2DP, LE5.1, A2DP, LE, aptX HD
Infrared portYes-
NFCYes (market/region dependent)No
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, BDS, GALILEO
RadioFM radio, recordingNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
Games-Yes
Java-No
Messaging-SMS, MMS, IM
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass
Battery
Charging33W wired, 59% in 30 min, 100% in 59 min18W wired
Stand-by-Up to 600 h
Talk time-Up to 5 h
TypeLi-Po 5160 mAh5000 mAh
Misc
ColorsPhantom Black, Frost Blue, Metal BronzeWhite, Gray, Aurora
ModelsM2102J20SG, M2102J20SIV2061A
Price$ 128.04 / £ 249.99About 200 EUR
SAR0.99 W/kg (head)     0.67 W/kg (body)-
SAR EU0.57 W/kg (head)     0.90 W/kg (body)-
Tests
Battery life Endurance rating 112h -
Camera Photo / Video-
Display Contrast ratio: 1401:1 (nominal)-
Loudspeaker -26.1 LUFS (Good) -
Performance AnTuTu: 453223 (v8) GeekBench: 2574 (v5.1) GFXBench: 38fps (ES 3.1 onscreen)-
OUR TESTS
Battery (old)Endurance rating 112h-
CameraPhoto / Video-
DisplayContrast ratio: 1401:1 (nominal)-
Loudspeaker-26.1 LUFS (Good)-
PerformanceAnTuTu: 453223 (v8) GeekBench: 2574 (v5.1) GFXBench: 38fps (ES 3.1 onscreen)-