Realme U1 vs Samsung Galaxy S8

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 20(800), 28(700)
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A, Cat6, 300 Mbps download, 50 Mbps upload

-
LTE-A speed

-

LTE-A, (4CA) Cat16, 1024 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Corning Gorilla Glass 5 back panel
SIM

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

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

157 mm

148.9 mm
Width

74 mm

68.1 mm
Thickness

8 mm

8 mm
Weight

168 g

155 g
Payment

-

Samsung Pay(Visa, Mastercard)
Waterproof

-

IP68 - 1.5 m and 30 minutes
Dust proof

-

IP68
Colors

Black, Blue, Gold

Arctic Silver, Coral Blue, Maple Gold, Midnight Black, Orchid Gray

Display
Display type

LTPS IPS LCD capacitive touchscreen

Super AMOLED capacitive touchscreen
Physical size

6.3 inches

5.8 inches
Resolution

1080 x 2340 pixels

1440 x 2960 pixels
Pixel density

409 ppi

570 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3, LTPS(Low temperature PolySilicon)

Corning Gorilla Glass 5
Multitouch

Yes

Yes

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.1 GHz Cortex-A73

Quad-core 2.3 GHz
CPU(second)

quad-core 1.95 GHz Cortex-A53

quad-core 1.7 GHz
Chipset

MediaTek Helio P70

Qualcomm MSM8998 Snapdragon 835 - US / Exynos 8895 Octa - EMEA
GPU

Mali-G72 MP3

Adreno 540 - US
Memory RAM

3, 4 GB

4 GB
Internal storage

32, 64 GB

64 GB
Memory card

microSD, microSDHC, microSDXC

microSD
Memory card max

256 GB

256 GB

Main camera
Camera type

Dual

-
Main camera

13 MP, f/2.2 , 1/2.8" , 0.9 µm

12 MP, f/1.7 , 26 mm
2 MP, f/2.4
Primary camera resolution

4160 x 3120 pixels

-
Primary camera video

1080p@30fps, 720p@90fps

2160p@30fps, 1080p@60fps
Primary camera flash

LED flash

LED flash
Primary camera optical image stabilization

-

optical image stabilization
Primary camera phase detection autofocus

-

phase detection autofocus
Primary camera video dual video

-

dual-video record
Primary camera video hdr

-

HDR
Camera features

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

1.4 µm pixel size, 1/2.5" sensor size, Auto HDR, face/smile detection, geo-tagging, panorama, simultaneous 4K video and 9MP image recording, touch focus

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 1.0 reversible connector
USB On-The-Go

Yes

-
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
BDS

-

Yes

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Mail

-

Push Mail
Java

-

No
Sensors

Accelerometer, compass, fingerprint, light, proximity

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