vivo Y31s vs Xiaomi Redmi Note 9 5G

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PHONES
Phone Names vivo Y31s Xiaomi Redmi Note 9 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41
5G bands1, 3, 28, 41, 77, 78 SA/NSA1, 3, 41, 78, 79 SA/NSA/Sub6
EDGE-No
GPRS-No
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 CDMA2000 1x CDMA2000 1xEV-DO
Launch
Announced2021, January 122020, November 26
StatusAvailable. Released 2021, January 15Available. Released 2020, December 01
Body
Build-Glass front (Gorilla Glass 5), plastic back
Dimensions164.2 x 75.4 x 8.4 mm (6.46 x 2.97 x 0.33 in)162 x 77.3 x 9.2 mm (6.38 x 3.04 x 0.36 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight185.5 g (6.56 oz)199 g (7.02 oz)
 -Water-repellent coating
Display
Protection-Corning Gorilla Glass 5
Resolution1080 x 2408 pixels, 20:9 ratio (~400 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
Size6.58 inches, 104.8 cm2 (~84.7% screen-to-body ratio)6.53 inches, 104.7 cm2 (~83.6% screen-to-body ratio)
TypeIPS LCD, 90HzIPS LCD, 450 nits (typ)
Platform
CPUOcta-core (2x2.0 GHz Kryo 460 & 6x1.8 GHz Kryo 460)Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
ChipsetQualcomm SM4350 Snapdragon 480 5G (8 nm)Mediatek Dimensity 800U (7 nm)
GPUAdreno 619Mali-G57 MC3
OSAndroid 11, Funtouch 10.5Android 10, MIUI 12
Memory
Call records-Yes
Card slotNomicroSDXC (dedicated slot)
Internal64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM64GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
Phonebook-500 entries
 UFS 2.1UFS 2.2
Main Camera
Dual13 MP, f/2.2, (wide), PDAF Auxiliary lens-
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Single-VGA
Triple-48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro)
Video4K@30fps, 1080p@30fps4K@30fps, 1080p@30/60fps
Selfie camera
FeaturesHDR-
Single8 MP, f/2.0, (wide)13 MP, f/2.3, 29mm (standard), 1/3.1", 1.12µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes, with stereo speakers
 -24-bit/192kHz audio
Comms
Bluetooth5.1, A2DP, LE, aptX HD5.1, A2DP, LE
Infrared port-Yes
NFCNoNo
PositioningGPS, GLONASS, BDS, GALILEOGPS, GLONASS, GALILEO, BDS, QZSS
RadioNoUnspecified
USBUSB Type-C 2.0, OTGUSB Type-C 2.0
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
Games-Downloadable
Java-No
Messaging-SMS(threaded view)
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass
Battery
Charging18W wired18W wired
Stand-by-Up to 300 h
Talk time-Up to 3 h 30 min
Type5000 mAhLi-Po 5000 mAh
Misc
ColorsRed, Gray, AuroraGray, Green, Violet
ModelsV2054A, V2068AM2007J22C
PriceAbout 190 EURAbout 170 EUR