Product
Vivo U20
Vivo U20
Xiaomi Mi CC9
Xiaomi Mi CC9
Battery
Charging 18W wired 18W wired
Type 5000 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 162.2 x 76.5 x 8.9 mm (6.39 x 3.01 x 0.35 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 193 g (6.81 oz) 179 g (6.31 oz)
Comms
Bluetooth 5.0, A2DP, LE, aptX 5.0, A2DP, LE, aptX HD
Infrared port - Yes
NFC No Yes
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, GALILEO, BDS
Radio FM radio FM radio
USB microUSB 2.0, OTG 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 (~395 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size 6.53 inches, 104.7 cm2 (~84.4% screen-to-body ratio) 6.39 inches, 100.2 cm2 (~85.8% screen-to-body ratio)
Type IPS LCD Super AMOLED, HDR, 430 nits (typ)
Features
Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2019, November. Released 2019, November 2019, July. Released 2019, July
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, HDR, panorama
Triple 16 MP, f/1.8, (wide), PDAF 8 MP, f/2.2, 13mm (ultrawide) 2 MP, f/2.4, (macro) 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@30fps 4K@30fps, 1080p@30/60/120fps, 720p@960fps
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)
Internal 64GB 4GB RAM, 64GB 6GB RAM, 128GB 8GB RAM 64GB 6GB RAM, 128GB 6GB RAM, 256GB 8GB RAM
  UFS 2.1 UFS 2.1
Misc
Colors Racing Black, Blaze Blue Black, Blue, White
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1900 / 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 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 9.2 Android 9.0 (Pie), upgradable to Android 10, MIUI 11
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