Product
Vivo U20
Vivo U20
Vivo Y9s
Vivo Y9s
Battery
Charging 18W wired 18W wired
Type 5000 mAh, non-removable 4500 mAh, non-removable
Body
Build Glass front, plastic back, plastic frame Glass front, glass back, aluminum frame
Dimensions 162.2 x 76.5 x 8.9 mm (6.39 x 3.01 x 0.35 in) 159.3 x 75.2 x 8.7 mm (6.27 x 2.96 x 0.34 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 193 g (6.81 oz) 186.7 g (6.60 oz)
Comms
Bluetooth 5.0, A2DP, LE, aptX 5.0, A2DP, LE
NFC No No
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, BDS
Radio FM radio FM radio
USB microUSB 2.0, OTG USB Type-C 2.0, OTG
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 (~395 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density)
Size 6.53 inches, 104.7 cm2 (~84.4% screen-to-body ratio) 6.38 inches, 99.9 cm2 (~83.4% screen-to-body ratio)
Type IPS LCD Super AMOLED
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2019, November. Released 2019, November 2019, December. Released 2019, December
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, HDR, panorama
Quad - 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth)
Triple 16 MP, f/1.8, (wide), PDAF 8 MP, f/2.2, 13mm (ultrawide) 2 MP, f/2.4, (macro) -
Video 4K@30fps, 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)
Internal 64GB 4GB RAM, 64GB 6GB RAM, 128GB 8GB RAM 128GB 8GB RAM
  UFS 2.1 -
Misc
Colors Racing Black, Blaze Blue Fancy Sky, Knight Black, Nebula Blue
Models - V1945A, V1945T
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 1, 3, 5, 8, 34, 38, 39, 40, 41
Speed HSPA, LTE HSPA, LTE
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / LTE
  - CDMA 800 & TD-SCDMA
Our Tests
Performance AnTuTu: 215820 (v8) GeekBench: 5857 (v4.4), 1614 (v5.1) GFXBench: 7.7fps (ES 3.1 onscreen) -
Platform
Chipset Qualcomm SDM675 Snapdragon 675 (11 nm) Qualcomm SDM665 Snapdragon 665 (11 nm)
CPU Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver) Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU Adreno 612 Adreno 610
OS Android 9.0 (Pie), Funtouch 9.2 Android 9.0 (Pie), Funtouch 9
Selfie camera
Features HDR HDR
Single 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm 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