Samsung Galaxy S8+ vs Xiaomi Mi 9

$399.89 VIEW ON AMAZON
$291.80 VIEW ON AMAZON

Display

Display size

6.2 inches
6.4 inches

Resolution

1440 x 2960 pixels
1080 x 2340 pixels

Pixel density

529 ppi
403 ppi

Technology

Super AMOLED
AMOLED

Screen-to-body ratio

83.32 %
85.23 %

Peak brightness

 
600 cd/m2 (nit)

Features

HDR video support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
HDR video support, Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor

Camera

Rear

Single camera
Triple camera

Main camera

12 megapixels
48 megapixels

Hardware Features

Optical image stabilization, Phase detection autofocus
Sapphire crystal lens cover, Laser and Phase detection autofocus, CMOS image sensor

Specifications

Aperture size: F1.7; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

 
12 megapixels

Hardware Features

 
Telephoto, Sapphire crystal lens cover, Phase detection autofocus

Specifications

 
Optical zoom: 2x; Aperture size: F2.2; Focal Length: 50 mm; Sensor size: 1/3.4"; Pixel size: 1 μm

Third camera

 
16 megapixels

Hardware Features

 
Ultra-wide, Sapphire crystal lens cover, Phase detection autofocus

Specifications

 
Aperture size: F2.2; Focal Length: 17 mm; Sensor size: 1/3"; Pixel size: 1 μm

Flash

LED
Dual LED

Video recording

3840x2160 (4K UHD) (30 fps), 2560x1440 (QHD), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (960 fps), 1280x720 (HD) (960 fps)

Features

High Dynamic Range mode (HDR), Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video light, Digital image stabilization, Video calling, Video sharing
Continuous autofocus, Digital image stabilization, Video calling, Video sharing

Front

8 megapixels
20 megapixels

Features

Wide Angle, Autofocus, High Dynamic Range mode (HDR)
High Dynamic Range mode (HDR)

Design

Dimensions

6.28 x 2.89 x 0.32 inches (159.5 x 73.4 x 8.1 mm)
6.20 x 2.94 x 0.30 inches (157.5 x 74.67 x 7.61 mm)

Weight

6.10 oz (173 g)
the average is 6 oz (172 g)
6.10 oz (173 g)
the average is 6 oz (172 g)

Materials

Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Back: Glass (Corning Gorilla Glass 5); Frame: Metal

Resistance

Water, Dust; IP 68
 

Biometrics

Iris scanner, 2D Face unlock, Fingerprint (touch)
In-screen fingerprint

Colors

Black, Gold, Gray, Silver, Pink, Blue
Black, Purple, Blue

Multimedia

Headphones

3.5 mm jack
USB Type-C (reversible)

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
aptX-HD

Screen mirroring

DLNA, Wireless screen share, MHL
Wireless screen share

Additional microphone(s)

for Noise cancellation
 

Hardware & Performance

System chip

Qualcomm Snapdragon 835 MSM8998
Qualcomm Snapdragon 855

Processor

Octa-core, 2450 MHz, Kryo 280, 64-bit, 10 nm
Octa-core, 2840 MHz, Kryo 485, 64-bit, 7 nm

GPU

Adreno 540
Adreno 640

RAM

4 GB
6 GB

Internal storage

64 GB
128 GB, not expandable

Storage expansion

microSDXC up to 256 GB
 

OS

Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat), Samsung One UI
Android (9.0 Pie), Xiaomi MI UI

Connectivity & Features

Bluetooth

5.0, EDR
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; MIMO, Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot

USB

USB Type-C (reversible), USB 3.1
USB Type-C (reversible), USB 2.0

Features

Mass storage device, USB charging
Mass storage device, USB OTG

Location

GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou

Sensors

Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass

Mobile Payment

Samsung Pay
 

Other

NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
NFC, Infrared, VoIP, Tethering, Computer sync, OTA sync

Cellular

LTE (FDD)

Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66
Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28

LTE (TDD)

 
Bands 38, 39, 40

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data

LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSPA, HSUPA

Dual SIM

 
Yes

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
Yes

VoLTE

 
Yes

Battery

Capacity

3500 mAh
3300 mAh

Type

Li - Ion, Not user replaceable
Not user replaceable

Charging

Yes, Qi and Powermat wireless charging
Qualcomm Quick Charge 4+, Qi wireless charging

Talk time

34.00 hours
the average is 21 h (1288 min)
 

Stand-by time

4.3 days (103 hours)
the average is 19 days (457 h)
 

Talk time (3G)

24.00 hours
the average is 23 h (1362 min)
 

Internet use

3G: 14 hours; LTE: 16 hours; Wi-Fi: 15 hours
 

Music playback

99.00 hours
 

Video playback

20.00 hours
 

Phone features

Notifications

Haptic feedback
Haptic feedback, Music ringtones, Vibration

Other features

Voice dialing, Voice commands, Voice recording, TTY/TDD
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval

 
 

Date approved

Apr 06, 2017
 

FCC ID value: A3LSMG955U link
 

FCC measured SAR

 
 

Head

0.33 W/kg
 

Body

0.29 W/kg
 

Simultaneous Transmission

1.55 W/kg
 

Wireless Router

0.19 W/kg
 

Shopping information

In The Box

 
Case, 18W Charger, USB Type-C cable, Type-c to 3.5 mm adapter, SIM removal tool, Documentation
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