Product
Vivo Y81i
Vivo Y81i
Xiaomi Redmi Note 5 Pro
Xiaomi Redmi Note 5 Pro
Battery
Charging - 18W wired, QC2
Type 3260 mAh, non-removable Li-Po 4000 mAh, non-removable
Body
Build Glass front (Gorilla Glass), plastic back, plastic frame Glass front (Gorilla Glass), aluminum back, aluminum frame
Dimensions 155.1 x 75 x 7.8 mm (6.11 x 2.95 x 0.31 in) 158.6 x 75.4 x 8.1 mm (6.24 x 2.97 x 0.32 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 143 g (5.04 oz) 181 g (6.38 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
Infrared port - Yes
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
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 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Protection Corning Gorilla Glass Corning Gorilla Glass (unspecified version)
Resolution 720 x 1520 pixels, 19:9 ratio (~270 ppi density) 1080 x 2160 pixels, 18:9 ratio (~403 ppi density)
Size 6.22 inches, 96.6 cm2 (~83.0% screen-to-body ratio) 5.99 inches, 92.6 cm2 (~77.4% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2018, October. Released 2018, November 2018, February 14. Released 2018, February
Status Discontinued Discontinued
Main Camera
Dual -
Features LED flash, HDR, panorama Dual-LED flash, panorama, HDR
Single 13 MP, f/2.2, PDAF -
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (uses shared SIM slot)
Internal 16GB 2GB RAM 64GB 4GB RAM, 64GB 6GB RAM
eMMC 5.1 eMMC 5.1
Misc
Colors Black, Red Black, Champagne Gold, Rose Gold, Lake Blue
Models 1812, 1812_19 MEI7S, MEI7
SAR -
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, 40, 41
Speed HSPA 21.1/5.76 Mbps, LTE (2CA) Cat7 300/150 Mbps HSPA, LTE
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Our Tests
Performance - AnTuTu: 107737 (v7) GeekBench: 4696 (v4.4)
Platform
Chipset Mediatek MT6761 Helio A22 (12 nm) Qualcomm SDM636 Snapdragon 636 (14 nm)
CPU Quad-core 2.0 GHz Cortex-A53 Octa-core (4x1.8 GHz Kryo 260 Gold & 4x1.6 GHz Kryo 260 Silver)
GPU PowerVR GE8320 Adreno 509
OS Android 8.1 (Oreo), Funtouch 4 Android 7.1.2 (Nougat), upgradable to Android 9, MIUI 11
Selfie camera
Features - LED flash
Single 5 MP, f/2.2
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes