vivo Y55s (2021) vs Xiaomi Poco X4 Pro 5G

Phones Images
PHONES
Phone Names vivo Y55s (2021) Xiaomi Poco X4 Pro 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - Global
4G bands1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 40, 41 - Global
5G bands1, 5, 8, 28, 41, 77, 78 SA/NSA1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA - Global
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / HSPA / LTE / 5G
 CDMA2000 1x 1, 3, 5, 8, 28, 40, 78 SA/NSA - India
Launch
Announced2021, December 042022, February 28
StatusAvailable. Released 2021, December 22Available. Released 2022, March 23
Body
BuildGlass front, plastic frame, plastic backGlass front (Gorilla Glass 5), glass back, plastic frame
Dimensions163.9 x 75.3 x 9.2 mm (6.45 x 2.96 x 0.36 in)164.2 x 76.1 x 8.1 mm (6.46 x 3.00 x 0.32 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight199.8 g (7.05 oz)205 g (7.23 oz)
 -IP53, dust and splash resistant
Display
Protection-Corning Gorilla Glass 5
Resolution1080 x 2408 pixels, 20:9 ratio (~401 ppi density)1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Size6.58 inches, 104.3 cm2 (~84.5% screen-to-body ratio)6.67 inches, 107.4 cm2 (~86.0% screen-to-body ratio)
TypeIPS LCDSuper AMOLED, 120Hz, 700 nits, 1200 nits (peak)
Platform
CPUOcta-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)Octa-core (2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver)
ChipsetMediatek Dimensity 700 (7 nm)Qualcomm SM6375 Snapdragon 695 5G (6 nm)
GPUMali-G57 MC2Adreno 619
OSAndroid 11, OriginOSAndroid 11, MIUI 13 for POCO
Memory
Card slotNomicroSDXC (uses shared SIM slot)
Internal128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
 UFS 2.1UFS 2.2
Main Camera
Dual50 MP, f/1.8, 26mm (wide), PDAF 2 MP (macro)-
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Single8 MP, f/1.8, (wide)16 MP, f/2.5, (wide), 1/3.06" 1.0µm
Triple-108 MP, f/1.9, 26mm (wide), 1/1.52", 0.7µm, PDAF - Global version 64 MP, f/1.8, 26mm (wide), 0.7µm, PDAF - India version 8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro)
Video1080p@30fps1080p@30fps
Selfie camera
Features-HDR, panorama
Single8 MP, f/1.8, (wide)16 MP, f/2.5, (wide), 1/3.06" 1.0µm
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
NFCNoYes (market/region dependent)
PositioningGPS, GLONASS, GALILEO, BDS, QZSSGPS, GLONASS, BDS, GALILEO
Radio-FM radio
USBUSB Type-C, 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
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass
Battery
Charging18W wired67W wired, PD3.0, QC3, 70% in 22 min, 100% in 41 min
Type6000 mAhLi-Po 5000 mAh
Misc
ColorsBlack, Blue, PinkLaser Black, Laser Blue, Poco Yellow
ModelsV2164A2201116PG
PriceAbout 210 EUR€ 160.40 / $ 419.99 / £ 255.00 / ₹ 12,940
SAR-1.06 W/kg (head)     1.09 W/kg (body)
SAR EU-0.60 W/kg (head)     0.96 W/kg (body)
Tests
Battery life- Endurance rating 119h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -26.8 LUFS (Good)
Performance- AnTuTu: 335353 (v8), 384646 (v9) GeekBench: 2063 (v5.1) GFXBench: 17fps (ES 3.1 onscreen)
OUR TESTS
Battery (old)-Endurance rating 119h
Camera-Photo / Video
Display-Contrast ratio: Infinite (nominal)
Loudspeaker--26.8 LUFS (Good)
Performance-AnTuTu: 335353 (v8), 384646 (v9) GeekBench: 2063 (v5.1) GFXBench: 17fps (ES 3.1 onscreen)