Full Comparison of Vivo S1 4GB vs Huawei Y7a -Tecinfoz
Vivo S1 4GB

Rs. 35,999

Display 6.38 Inches
Resolution 1080 x 2340 Pixels (~404 PPI)
Built in 128GB Built-in, 4GB RAM
Front Camera 32 MP, f/2.0, HDR, Video ([email protected])
Back Camera Triple Camera: 16 MP, (wide), 1/2.8", PDAF + 8 MP, f/2.2, 13mm (ultrawide) + 2 MP, f/2.4, depth sensor, LED Flash
Battery (Li-Po Non removable), 4500 mAh
CPU Octa-core (2 x 2.0 GHz Cortex-A75 + 6 x 1.7 GHz Cortex-A55)
OS
Weight 179 g
VS
Huawei Y7a

Rs. 35,999

Display IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch
Resolution 1080 x 2400 Pixels (~395 PPI)
Built in 64/128GB Built-in, 4GB RAM
Front Camera 8 MP, f/2.0, HDR, Video (1080p@30fps)
Back Camera Quad Camera: 48 MP, f/1.8, 26mm (wide), 1/2.0", PDAF + 8 MP, f/2.4, (ultrawide) + 2 MP, f/2.4, (macro) + 2 MP, f/2.4, (depth), LED Flash
Battery (Li-Po Non removable), 5000 mAh
CPU Octa-core (4 x 2.0 GHz Cortex-A73 + 4 x 1.7 GHz Cortex-A53)
OS Android 10.0 OS
Weight 206 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 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Band 4G LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800)
Band 5G - -
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Body
OS Android 9.0 (Pie) Android 10.0 OS
Ui Function OS 9 EMUI 10.1
Dimension 159.53 x 75.23 x 8.13 165.7 x 76.9 x 9.3 mm
Weight 179 g 206 g
Sim Dual Sim, Dual Standby (Nano-SIM) Hybrid Dual SIM, Dual Standby, (Nano-SIM)
Color Diamond Black, Cosmic Green, Skyline Blue Midnight Black, Brush Gold, Crush Green
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Display
Technology Super AMOLED Capacitive Touchscreen, 16M Colors, Multitouch IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   6.7 Inches
Size 6.38 Inches IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch
Resolution 1080 x 2340 Pixels (~404 PPI) 1080 x 2400 Pixels (~395 PPI)
Extra Features - -
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Processor
CPU Octa-core (2 x 2.0 GHz Cortex-A75 + 6 x 1.7 GHz Cortex-A55) Octa-core (4 x 2.0 GHz Cortex-A73 + 4 x 1.7 GHz Cortex-A53)
Chipset Mediatek MT6768 Helio P65 (12nm) Kirin 710A (14 nm)
GPU Mali-G52 MC2 Mali-G51 MP4
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Memory
Built-in 128GB Built-in, 4GB RAM 64/128GB Built-in, 4GB RAM
Card microSD Card, (supports up to 256GB) microSD Card, (supports up to 1TB) (uses shared SIM slot)
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Camera
Main Back Camera:Triple Camera: 16 MP, (wide), 1/2.8", PDAF + 8 MP, f/2.2, 13mm (ultrawide) + 2 MP, f/2.4, depth sensor, LED Flash Back Camera:Quad Camera: 48 MP, f/1.8, 26mm (wide), 1/2.0", PDAF + 8 MP, f/2.4, (ultrawide) + 2 MP, f/2.4, (macro) + 2 MP, f/2.4, (depth), LED Flash
Features Phase detection, Geo-tagging, touch focus, face detection, HDR, panorama, Video ([email protected], [email protected]) Geo-tagging, touch focus, face detection, HDR, panorama, Video (4K@30fps, 1080p@30fps)
Front Front Camera:32 MP, f/2.0, HDR, Video ([email protected]) Front Camera:8 MP, f/2.0, HDR, Video (1080p@30fps)
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Features
Sensors Accelerometer, Compass, Fingerprint (under display, optical), Proximity Accelerometer, Compass, Fingerprint (rear mounted), Proximity
Audio 3.5mm Audio Jack, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Speaker Phone 3.5mm Audio Jack, MP4/H.264 player, MP3/eAAC+/WAV/Flac player, 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 Active noise cancellation with dedicated mic, Document viewer, Photo/video editor Active noise cancellation with dedicated mic, Photo/video editor, Document editor
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Connectivity
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth v5.0 with A2DP, LE v5.1 with A2DP, LE
GPS Yes + A-GPS support, & GLONASS Yes + A-GPS support & Glonass
USB microUSBv2.0 2.0, Type-C 1.0 reversible connector, USB On-The-Go
NFC Yes Yes
Data GPRS, Edge, 3G (HSPA 42.2/5.76 Mbps), 4G (LTE-A (2CA) Cat7 300/50 Mbps) GPRS, Edge, 3G (HSPA 42.2/5.76 Mbps), 4G LTE-A
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Battery
Capacity (Li-Po Non removable), 4500 mAh (Li-Po Non removable), 5000 mAh
Charging Fast battery charging Fast charging 22.5W

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