Product
Vivo Y91i
Vivo Y91i
Samsung Galaxy On5 Pro
Samsung Galaxy On5 Pro
Battery
Type 4030 mAh, non-removable Li-Ion 2600 mAh, removable
Body
Dimensions 155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in) 142.3 x 72.1 x 8.5 mm (5.60 x 2.84 x 0.33 in)
SIM Nano-SIM + Nano-SIM Dual SIM (Micro-SIM, dual stand-by)
Weight 163.5 g (5.78 oz) 149 g (5.26 oz)
Comms
Bluetooth 4.2, A2DP, LE 4.1, A2DP
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS
Radio FM radio FM radio
USB microUSB 2.0, OTG microUSB 2.0
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Display
Resolution 720 x 1520 pixels, 19:9 ratio (~271 ppi density) 720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Size 6.2 inches, 95.9 cm2 (~82.4% screen-to-body ratio) 5.0 inches, 68.9 cm2 (~67.2% screen-to-body ratio)
Type IPS LCD TFT
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Accelerometer, proximity
Launch
Announced 2018, November. Released 2018, November 2016, July. Released 2016, July
Status Discontinued Discontinued
Main Camera
Dual 13 MP, f/2.2, PDAF 2 MP, f/2.4, (depth) -
Features LED flash, panorama LED flash
Single - 8 MP, f/2.2, AF
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC microSDXC (dedicated slot)
Internal 16GB 2GB RAM 16GB 2GB RAM
  eMMC 5.1 eMMC 4.5
Misc
Colors Starry Black, Ocean Blue, Red White, Black
Models - SM-G5500, SM-G550F, SM-G550FY
SAR - 1.40 W/kg (head)     1.09 W/kg (body)    
SAR EU - 0.40 W/kg (head)     0.31 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1900 / 2100 - G550FY
4G bands 1, 3, 5, 8, 28, 38, 40, 41 1, 3, 5, 8, 20, 40 - G550FY
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Platform
Chipset Qualcomm SDM439 Snapdragon 439 (12 nm) Exynos 3475 Quad (28 nm)
CPU Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53) Quad-core 1.3 GHz Cortex-A7
GPU Adreno 505 Mali-T720
OS Android 8.1 (Oreo), Funtouch 4.5 Android 6.0 (Marshmallow)
Selfie camera
Single 8 MP, f/2.0 5 MP, f/2.2
Video
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes