Product
Vivo V15 Pro
Vivo V15 Pro
Xiaomi Mi Note 3
Xiaomi Mi Note 3
Battery
Charging 18W wired, 24% in 15 min 18W wired, QC3
Type 3700 mAh, non-removable Li-Ion 3500 mAh, non-removable
Body
Build Glass front, plastic back, plastic frame Glass front (Gorilla Glass 4), glass back, aluminum frame
Dimensions 157.3 x 74.7 x 8.2 mm (6.19 x 2.94 x 0.32 in) 152.6 x 74 x 7.6 mm (6.01 x 2.91 x 0.30 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 185 g (6.53 oz) 163 g (5.75 oz)
Comms
Bluetooth 5.0, A2DP, LE, EDR, aptX 5.0, A2DP, LE
Infrared port - Yes
NFC Yes (market dependent) Yes
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
Radio FM radio No
USB microUSB 2.0 USB Type-C
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Protection - Corning Gorilla Glass 4
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density) 1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Size 6.39 inches, 99.7 cm2 (~84.9% screen-to-body ratio) 5.5 inches, 83.4 cm2 (~73.8% screen-to-body ratio)
Type Super AMOLED IPS LCD
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2019, February. Released 2019, March 2017, September. Released 2017, September
Status Discontinued Discontinued
Main Camera
Dual - 12 MP, f/1.8, 27mm (wide), PDAF, 4-axis OIS 12 MP, f/2.6, 52mm (telephoto), AF, 2x optical zoom
Features LED flash, HDR, panorama Dual-LED dual-tone flash, HDR, panorama
Triple 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide) 5 MP, f/2.4, (depth) -
Video 4K@30fps, 1080p@30/60fps 4K@30fps, 720p@120fps
Memory
Card slot microSDXC (dedicated slot) No
Internal 128GB 6GB RAM, 128GB 8GB RAM 64GB 6GB RAM, 128GB 6GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Topaz Blue, Coral Red, Ruby Red Black, Blue
Models 1818, vivo 1818 MCE8
SAR - 0.50 W/kg (head)     1.54 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 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 7, 8, 20 1, 3, 5, 7, 8, 34, 38, 39, 40, 41
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat12 600/50 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / EVDO / LTE
  1, 3, 5, 8, 38, 40, 41 - India CDMA2000 1xEV-DO
Our Tests
Audio quality Noise -93.4dB / Crosstalk -92.2dB -
Battery (old) Endurance rating 92h -
Camera Photo / Video -
Display Contrast ratio: infinite, 3.806 (sunlight) -
Loudspeaker Voice 65dB / Noise 74dB / Ring 83dB -
Performance AnTuTu: 180774 (v7) GeekBench: 6527 (v4.4) GFXBench: 7.1fps (ES 3.1 onscreen) -
Platform
Chipset Qualcomm SDM675 Snapdragon 675 (11 nm) Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver) Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU Adreno 612 Adreno 512
OS Android 9.0 (Pie), Funtouch 9 Android 7.1 (Nougat), upgradable to Android 9, MIUI 12
Selfie camera
Features HDR -
Single Motorized pop-up 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm 16 MP, f/2.5, (wide), 1/3.06" 1.0µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes No
Loudspeaker Yes Yes, with stereo speakers
  - 24-bit/192kHz audio