Product
Vivo V15 Pro
Vivo V15 Pro
Vivo X27
Vivo X27
Battery
Charging 18W wired, 24% in 15 min 18W wired
Type 3700 mAh, non-removable 4000 mAh, non-removable
Body
Build Glass front, plastic back, plastic frame -
Dimensions 157.3 x 74.7 x 8.2 mm (6.19 x 2.94 x 0.32 in) 157.7 x 74.3 x 9 mm (6.21 x 2.93 x 0.35 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 185 g (6.53 oz) 188 g (6.63 oz)
Comms
Bluetooth 5.0, A2DP, LE, EDR, aptX 5.0, A2DP, LE, EDR, aptX
NFC Yes (market dependent) Yes (market dependent)
Positioning GPS, GLONASS, BDS GPS, GLONASS, 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
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~400 ppi density)
Size 6.39 inches, 99.7 cm2 (~84.9% screen-to-body ratio) 6.39 inches, 101.7 cm2 (~86.8% screen-to-body ratio)
Type Super AMOLED Super AMOLED
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, March. Released 2019, March
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 13 MP, 13mm (ultrawide) 5 MP, f/2.4, (depth)
Video 4K@30fps, 1080p@30/60fps 4K@30fps, 1080p@30/60fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM 128GB 8GB RAM, 256GB 8GB RAM
  eMMC 5.1 -
Misc
Colors Topaz Blue, Coral Red, Ruby Red Blue, Gold, Symphony Summer
Models 1818, vivo 1818 V1829T/A, V1829A, V1838A, V1829T
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, 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) Cat12 600/50 Mbps
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / LTE
  1, 3, 5, 8, 38, 40, 41 - India CDMA 800 & TD-SCDMA
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 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 360 Gold & 6x1.7 GHz Kryo 360 Silver)
GPU Adreno 612 Adreno 616
OS Android 9.0 (Pie), Funtouch 9 Android 9.0 (Pie), Funtouch 9
Selfie camera
Features HDR HDR
Single Motorized pop-up 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm Motorized pop-up 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes