Product
Vivo Y91i
Vivo Y91i
Samsung Galaxy J5 Prime
Samsung Galaxy J5 Prime
Battery
Music play - Up to 54 h
Talk time - Up to 16 h (3G)
Type 4030 mAh, non-removable Li-Ion 2400 mAh, non-removable
Body
Build - Glass front (Gorilla Glass), aluminum/plastic back, aluminum frame
Dimensions 155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in) 142.8 x 69.5 x 8.1 mm (5.62 x 2.74 x 0.32 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 163.5 g (5.78 oz) 143 g (5.04 oz)
Comms
Bluetooth 4.2, A2DP, LE 4.2, A2DP, LE
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS/ BDS (region dependent)
Radio FM radio FM radio; recording
USB microUSB 2.0, OTG microUSB 2.0, OTG
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Display
Protection - Corning Gorilla Glass (market dependent)
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 (~69.4% screen-to-body ratio)
Type IPS LCD PLS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Fingerprint (front-mounted), accelerometer, proximity
Launch
Announced 2018, November. Released 2018, November 2016, September 19. Released 2016, October
Status Discontinued Discontinued
Main Camera
Dual 13 MP, f/2.2, PDAF 2 MP, f/2.4, (depth) -
Features LED flash, panorama LED flash, panorama, HDR
Single - 13 MP, f/1.9, 28mm (wide), AF
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC microSDXC (dedicated slot)
Internal 16GB 2GB RAM 16GB 2GB RAM, 32GB 2GB RAM
  eMMC 5.1 eMMC 5.0
Misc
Colors Starry Black, Ocean Blue, Red Black, Gold
Models - SM-G570F, SM-G570F/DD, SM-G570F, SM-G570Y, SM-G570M
SAR - 0.71 W/kg (head)    
SAR EU - 0.42 W/kg (head)     0.83 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
4G bands 1, 3, 5, 8, 28, 38, 40, 41 1, 3, 5, 7, 8, 20, 38, 40 - EMEA, India
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
  - 1, 3, 5, 7, 8, 28, 38, 40 - Australia
Platform
Chipset Qualcomm SDM439 Snapdragon 439 (12 nm) Exynos 7570 Quad (14 nm)
CPU Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53) Quad-core 1.4 GHz Cortex-A53
GPU Adreno 505 Mali-T720 MP2
OS Android 8.1 (Oreo), Funtouch 4.5 Android 6.0.1 (Marshmallow), upgradable to Android 8.0 (Oreo)
Selfie camera
Single 8 MP, f/2.0 5 MP, f/2.2
Video
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes