Samsung Galaxy S9 vs vivo iQOO U3

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700(AWS), 2100
4G network

LTE

LTE frequency band 1, 3, 4, 5, 8, 34, 38, 39, 40, 41
5G network

-

5G band 1, 41, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE-A
LTE-A speed

LTE-A, (6CA) Cat18, 1200 Mbps download, 200 Mbps upload

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Front/back glass (Gorilla Glass 5), aluminum frame

Plastic
SIM

Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

147.7 mm

164.2 mm
Width

68.7 mm

75.4 mm
Thickness

8.5 mm

8.4 mm
Weight

163 g

185.5 g
Payment

Samsung Pay(Visa, Mastercard certified)

-
Waterproof

IP68, 1.5m and 30 minutes

-
Dust proof

Yes, IP68

-
Colors

Coral Blue, Lilac Purple, Midnight Black, Titanium Gray

Aurora, Gray, White

Display
Display type

Super AMOLED capacitive touchscreen

IPS LCD
Physical size

5.8 inches

6.58 inches
Resolution

1440 x 2960 pixels

1080 x 2400 pixels
Pixel density

570 ppi

400 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 5

Scratch resistant, 2.5D curved glass screen
Multitouch

Yes

-
Display features

HDR10 compliant, 3D Touch, Always-on display

90Hz, 460 nits (typ)

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.7 GHz Mongoose M3

Dual-core 2.4 GHz Cortex-A76
CPU(second)

quad-core 1.8 GHz Cortex-A55

Hexa-core 2.0 GHz Cortex-A55
Chipset

Exynos 9810 Octa / Qualcomm SDM845 Snapdragon 845

MediaTek Dimensity 800U 5G
GPU

Mali-G72 MP18 / Adreno 630

Mali-G57 MC3
Memory RAM

4 GB

6, 8 GB
Internal storage

64, 128, 256 GB

128 GB
Memory card

microSD(uses second SIM slot)

No
Memory card max

400 GB

-
Storage

-

UFS 2.2

Main camera
Camera type

Photo / Video

-
Camera type

-

Dual
Main camera

12 MP, f/1.5-2.4 , 26 mm, 1/2.5" , 1.4 µm

48 MP, f/1.8 , (wide)
(depth) , 2 MP, f/2.4
Primary camera resolution

4032 x 3024 pixels

8000 x 6000 pixels
Primary camera video

2160p@60fps, 1080p@240fps, 720p@960fps

4K@30fps, 1080p@30fps
Primary camera Autofocus

dual pixel phase detection autofocus

-
Primary camera flash

LED flash

LED flash
Primary camera optical image stabilization

optical image stabilization

-
Primary camera video dual video

dual-video record

-
Primary camera video hdr

HDR

-
Camera features

Auto HDR, Geo-tagging, face/smile detection, panorama, simultaneous 4K video and 9MP image recording, touch focus

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus

Selfie camera
Selfie camera type

-

Single
Selfie camera

8 MP, f/1.7 , 25 mm, 1/3.6" , 1.22 µm

20 MP, f/2.0 , 25 mm, 1/2.0" , 0.8 µm, (wide)
Selfie camera resolution

3264 x 2448 pixels

3264 x 2448 pixels
Secondary camera autofocus

autofocus

-
Secondary camera dual video call

dual video call

-
Secondary camera HDR

Auto HDR

-
Selfie camera features

-

Face unlock
Selfie camera video

1440p@30fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 1.0 reversible connector

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

-
Bluetooth AptX

Yes

-
NFC

Yes

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Mail

Push Mail

-
Sensors

Iris scanner, SpO2, accelerometer, barometer, compass, fingerprint (rear-mounted), gyro, heart rate, proximity

Accelerometer, compass, fingerprint, proximity