Product
Vivo V15 Pro
Vivo V15 Pro
Xiaomi Mi 9 Lite
Xiaomi Mi 9 Lite
Battery
Charging 18W wired, 24% in 15 min 18W wired
Type 3700 mAh, non-removable Li-Po 4030 mAh, non-removable
Body
Build Glass front, plastic back, plastic frame Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions 157.3 x 74.7 x 8.2 mm (6.19 x 2.94 x 0.32 in) 156.8 x 74.5 x 8.7 mm (6.17 x 2.93 x 0.34 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 185 g (6.53 oz) 179 g (6.31 oz)
Comms
Bluetooth 5.0, A2DP, LE, EDR, aptX 5.0, A2DP, LE, aptX HD
Infrared port - Yes
NFC Yes (market dependent) Yes
Positioning GPS, GLONASS, BDS GPS, GLONASS, GALILEO, BDS
Radio FM radio FM radio
USB microUSB 2.0 USB Type-C 2.0
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 5
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size 6.39 inches, 99.7 cm2 (~84.9% screen-to-body ratio) 6.39 inches, 100.2 cm2 (~85.8% screen-to-body ratio)
Type Super AMOLED Super AMOLED, HDR, 430 nits (typ)
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2019, February. Released 2019, March 2019, September 16. Released 2019, September 16
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR, panorama LED 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) 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, (ultrawide), 1/4.0", 1.12µm 2 MP, (depth)
Video 4K@30fps, 1080p@30/60fps 4K@30fps, 1080p@30/60/120fps, 720p@960fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (uses shared SIM slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM 64GB 6GB RAM, 128GB 6GB RAM
  eMMC 5.1 UFS 2.1
Misc
Colors Topaz Blue, Coral Red, Ruby Red Pearl White, Aurora Blue, Onyx Grey
Models 1818, vivo 1818 M1904F3BG
SAR - 1.19 W/kg (head)     1.15 W/kg (body)    
SAR EU - 1.42 W/kg (head)     1.40 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 7, 8, 20 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat12 600/50 Mbps HSPA, LTE
Technology GSM / HSPA / LTE GSM / HSPA / LTE
  1, 3, 5, 8, 38, 40, 41 - India -
Our Tests
Audio quality Noise -93.4dB / Crosstalk -92.2dB Noise -90.3dB / Crosstalk -93.1dB
Battery (old) Endurance rating 92h Endurance rating 106h
Camera Photo / Video Photo / Video
Display Contrast ratio: infinite, 3.806 (sunlight) 597 nits max brightness (measured)
Loudspeaker Voice 65dB / Noise 74dB / Ring 83dB -30.2 LUFS (Below average)
Performance AnTuTu: 180774 (v7) GeekBench: 6527 (v4.4) GFXBench: 7.1fps (ES 3.1 onscreen) AnTuTu: 175478 (v7), 215277 (v8) GeekBench: 5989 (v4.4), 1518 (v5.1) GFXBench: 12fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm SDM675 Snapdragon 675 (11 nm) Qualcomm SDM710 Snapdragon 710 (10 nm)
CPU Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver) Octa-core (2x2.2 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)
GPU Adreno 612 Adreno 616
OS Android 9.0 (Pie), Funtouch 9 Android 9.0 (Pie), upgradable to Android 10, MIUI 11
Selfie camera
Features HDR HDR
Single Motorized pop-up 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes