Product
Xiaomi Redmi 3s Prime
Xiaomi Redmi 3s Prime
Vivo Y90
Vivo Y90
Battery
Charging 10W wired -
Type Li-Ion 4100 mAh, non-removable 4030 mAh, non-removable
Body
Build Glass front, aluminum back, aluminum frame Glass front, plastic back, plastic frame
Dimensions 139.3 x 69.6 x 8.5 mm (5.48 x 2.74 x 0.33 in) 155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in)
SIM Nano-SIM + Micro-SIM Nano-SIM + Nano-SIM
Weight 144 g (5.08 oz) 163.5 g (5.78 oz)
Comms
Bluetooth 4.1, A2DP, LE 5.0, A2DP, LE
Infrared port Yes -
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, GALILEO
Radio FM radio FM radio
USB microUSB 2.0 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 1280 pixels, 16:9 ratio (~294 ppi density) 720 x 1520 pixels, 19:9 ratio (~270 ppi density)
Size 5.0 inches, 68.9 cm2 (~71.1% screen-to-body ratio) 6.22 inches, 96.6 cm2 (~82.9% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Accelerometer, proximity, compass
Launch
Announced 2016, August. Released 2016, August 2019, July. Released 2019, July
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, panorama
Single 13 MP, f/2.0, PDAF 8 MP, f/2.0, AF
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (dedicated slot)
Internal 32GB 3GB RAM 16GB 2GB RAM, 32GB 2GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Gold, Dark Gray, Silver Black, Gold
Models - 1908, 1823
SAR - 1.28 W/kg (head)     0.61 W/kg (body)    
SAR EU 0.62 W/kg (head)     0.43 W/kg (body)     -
Network
2G bands GSM 900 / 1800 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 900 / 2100 - India HSDPA 850 / 900 / 2100
4G bands 3, 5, 40 - India 1, 3, 5, 8, 38, 40, 41
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
  1, 3, 7, 8, 20, 40 - Global -
Our Tests
Battery (old) Endurance rating 85h -
Camera Photo / Video -
Performance GFXBench: 4.9fps (ES 3.1 onscreen) -
Platform
Chipset Qualcomm MSM8937 Snapdragon 430 (28 nm) Mediatek MT6761 Helio A22 (12 nm)
CPU Octa-core 1.4 GHz Cortex-A53 Quad-core 2.0 GHz Cortex-A53
GPU Adreno 505 PowerVR GE8320
OS Android 6.0.1 (Marshmallow), MIUI 9.2 Android 8.1 (Oreo), Funtouch 4.5
Selfie camera
Single 5 MP, f/2.2 5 MP, f/1.8
Video 1080p@30fps 720p
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes