Product
Vivo Y20s
Vivo Y20s
₹20,479
Apple iPhone 4s
Apple iPhone 4s
₹19,045
Battery
Charging 18W wired -
Stand-by - Up to 200 h (3G)
Talk time - Up to 8 h (3G)
Type 5000 mAh Li-Po 1432 mAh, non-removable (5.3 Wh)
Body
Build Glass front, plastic back, plastic frame Glass front (Corning-made glass), glass back, stainless steel frame
Dimensions 164.4 x 76.3 x 8.4 mm (6.47 x 3.00 x 0.33 in) 115.2 x 58.6 x 9.3 mm (4.54 x 2.31 x 0.37 in)
SIM Nano-SIM + Nano-SIM Micro-SIM
Weight 192.3 g (6.77 oz) 140 g (4.94 oz)
  - Scratch-resistant glass back panel
Comms
Bluetooth 5.0, A2DP, LE 4.0, A2DP, LE
NFC No -
Positioning GPS, GLONASS, GALILEO, BDS GPS, A-GPS, GLONASS
Radio FM radio No
USB microUSB 2.0, OTG 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 b/g/n, hotspot
Display
Protection - Corning Gorilla Glass, oleophobic coating
Resolution 720 x 1600 pixels, 20:9 ratio (~270 ppi density) 640 x 960 pixels, 3:2 ratio (~330 ppi density)
Size 6.51 inches, 102.3 cm2 (~81.6% screen-to-body ratio) 3.5 inches, 36.5 cm2 (~54.0% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Fingerprint (side-mounted), accelerometer, proximity, compass Accelerometer, gyro, proximity, compass
Launch
Announced 2020, October 19 2011, October 04. Released 2011, October 14
Status Available. Released 2020, October 19 Discontinued
Main Camera
Features LED flash, HDR LED flash, panorama, HDR
Single - 8 MP, f/2.4, 35mm (standard), 1/3.2", 1.4µm, AF
Triple 13 MP, f/2.2, (wide), PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) -
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) No
Internal 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM 8GB 512MB RAM, 16GB 512MB RAM, 32GB 512MB RAM, 64GB 512MB RAM
Misc
Colors Purist Blue, Obsidian Black, Nebula Blue Black, White
Models - A1431, A1387, iPhone4,1
SAR - 1.18 W/kg (head)     0.98 W/kg (body)    
SAR EU - 0.99 W/kg (head)     0.99 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 3, 5, 7, 8, 18, 19, 20, 26, 28, 38, 39, 40, 41 -
Speed HSPA, LTE HSPA 14.4/5.76 Mbps
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / EVDO
  1, 3, 5, 7, 8, 38, 40, 41 CDMA2000 1xEV-DO
Platform
Chipset Qualcomm SM4250 Snapdragon 460 (11 nm) Apple A5 (45 nm)
CPU Octa-core (4x1.8 GHz Kryo 240 & 4x1.6 GHz Kryo 240) Dual-core 1.0 GHz Cortex-A9
GPU Adreno 610 PowerVR SGX543MP2
OS Android 10, Funtouch 10.5 or Funtouch 11 iOS 5, upgradable to iOS 9.3.6
Selfie camera
Single 8 MP, f/1.8, (wide) VGA, videocalling over Wi-Fi and 3G
Video 1080p@30fps 480p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
Tests
Audio quality - Noise -91.2dB / Crosstalk -93.0dB
Battery (old) - Endurance rating 45h
Camera - Photo / Video
Display - Contrast ratio: 1261:1 (nominal) / 2.269:1 (sunlight)
Loudspeaker - Voice 65dB / Noise 64dB / Ring 74dB
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