Product
Vivo Y91 (Mediatek)
Vivo Y91 (Mediatek)
Samsung Galaxy J2 Pro (2016)
Samsung Galaxy J2 Pro (2016)
Battery
Music play - Up to 54 h
Talk time - Up to 14 h (3G)
Type 4030 mAh, non-removable Li-Ion 2600 mAh, removable
Body
Build - Glass front, plastic back, plastic frame
Dimensions 155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in) 142.4 x 71.1 x 8 mm (5.61 x 2.80 x 0.31 in)
SIM Nano-SIMNano-SIM + Nano-SIM Dual SIM (Micro-SIM, dual stand-by)
Weight 163.5 g (5.78 oz) 138 g (4.87 oz)
Comms
Bluetooth 5.0, A2DP, LE 4.1, A2DP, LE
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS
Radio FM radio FM radio, RDS
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
Resolution 720 x 1520 pixels, 19:9 ratio (~270 ppi density) 720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Size 6.22 inches, 96.6 cm2 (~82.9% screen-to-body ratio) 5.0 inches, 68.9 cm2 (~68.1% screen-to-body ratio)
Type IPS LCD Super AMOLED
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Accelerometer, proximity
Launch
Announced 2019, January. Released 2019, January 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, HDR, panorama
Single - 8 MP, f/2.2, AF
Video 1080p@30fps 720p@30fps
Memory
Card slot microSDXC microSDXC (dedicated slot)
Internal 64GB 3GB RAM 16GB 2GB RAM
  eMMC 5.1 -
Misc
Colors Starry Black, Ocean Blue Silver, Black, Gold
Models - SM-J210F, SM-J210G, SM-J210H, SM-J210GU
SAR - 0.78 W/kg (head)    
SAR EU - 0.59 W/kg (head)     1.24 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, 7, 8, 38, 40, 41 1, 3, 5, 8, 20, 40 - India
Speed HSPA 42.2/5.76 Mbps, LTE Cat5 150/75 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Platform
Chipset Mediatek MT6762 Helio P22 (12 nm) Spreadtrum SC8830
CPU Octa-core 2.0 GHz Cortex-A53 Quad-core 1.5 GHz Cortex-A7
GPU PowerVR GE8320 Mali-400MP2
OS Android 8.1 (Oreo), Funtouch 4.5 Android 6.0.1 (Marshmallow)
Selfie camera
Single 8 MP, f/1.8 5 MP, f/2.2
Video
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes