vivo S1 vs Samsung Galaxy A51 5G UW

Phones Images
PHONES
Phone Names vivo S1 Samsung Galaxy A51 5G UW
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 1900 / 2100
4G bands1, 3, 5, 7, 8, 20, 38, 40, 41 - Asia2, 4, 5, 13, 66
5G bands-260, 261 mmWave
SpeedHSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/150 MbpsHSPA, LTE, 5G
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE / 5G
 1, 3, 5, 8, 34, 38, 39, 40, 41 - China-
Launch
Announced2019, July 17. Released 2019, July2020, August 14
StatusDiscontinuedAvailable. Released 2020, August 14
Body
BuildGlass front, plastic back, plastic frameGlass front (Gorilla Glass 3), plastic back, aluminum frame
Dimensions159.5 x 75.2 x 8.1 mm (6.28 x 2.96 x 0.32 in)158.8 x 73.4 x 8.6 mm (6.25 x 2.89 x 0.34 in)
SIMNano-SIM + Nano-SIMNano-SIM (pre-installed)
Weight179 g (6.31 oz)188.8 g (6.67 oz)
Display
Protection-Corning Gorilla Glass 3
Resolution1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density)1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
Size6.38 inches, 99.9 cm2 (~83.3% screen-to-body ratio)6.5 inches, 102.0 cm2 (~87.5% screen-to-body ratio)
TypeSuper AMOLEDSuper AMOLED
 Always-on display-
Platform
CPUOcta-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
ChipsetMediatek MT6768 Helio P65 (12 nm)Qualcomm SM7250 Snapdragon 765G 5G (7 nm)
GPUMali-G52 MC2Adreno 620
OSAndroid 9.0 (Pie), Funtouch 9Android 10, One UI 2
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (uses shared SIM slot)
Internal64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 256GB 6GB RAM128GB 6GB RAM
 eMMC 5.1UFS 2.1
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, panorama, HDR
Quad-48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens
Single-5 MP, AF
Triple16 MP, f/1.8, (wide), 1/2.8", 1.12µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm Auxiliary lens-
Video1080p@30fps4K@30fps, 1080p@30/120fps; gyro-EIS
Selfie camera
FeaturesHDRHDR
Single32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Video1080p@30fps4K@30fps, 1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCNoYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO, BDS
RadioFM radioFM radio, RDS, recording
USBmicroUSB 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
SensorsFingerprint (under display, optical), accelerometer, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 -ANT+
Battery
Charging18W wired15W wired
Stand-by-Up to 672 h
Talk time-Up to 5 h
Type4500 mAh, non-removableLi-Po 4500 mAh
Misc
ColorsDiamond Black, Skyline Blue, Cosmic GreenPrism Bricks Blue
Models1907, V1907, 1907_19, V1913ASM-A516V
PriceAbout 230 EURAbout 470 EUR
SAR-0.70 W/kg (head)     1.25 W/kg (body)    
SAR EU-0.59 W/kg (head)     1.32 W/kg (body)
Pricing
128GB 4GB RAM₹ 17,200-
128GB 6GB RAM₹ 17,200-
64GB 6GB RAM₹ 17,990-