Samsung SGH-X640 vs LG KG800 vs OnePlus 8 Pro Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Specs Size
Differences only
Samsung SGH-X640
7.6
LG KG800
9.0
OnePlus 8 Pro
Samsung SGH-X640 LG KG800 OnePlus 8 Pro
800 mAh
800 mAh
4510 mAh
160 x 128 px
220 x 176 px
6.8-inch · 3168 x 1440 px
0.3 MP VGA Main
1.3 MP Main
48 MP Main · 16 MP Selfie
0.01GB
0.128GB
8GB · 128GB
Released · Apr 21, 2020
Check prices

Display

Size
6.8-inch
Resolution
160 x 128 px 220 x 176 px 3168 x 1440 px, 19.8:9 ratio, 513 PPI
Technology
TFT TFT AMOLED
Refresh rate
120Hz
Screen-to-body
90.79 %
Colors
65 536
Peak brightness
1300 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 865 SM8250 (7 nm)
Processor
Octa-core, 2840 MHz, Kryo 585, 64-bit
GPU
Adreno 650
RAM
8GB (LPDDR5)
Internal storage
0.01GB 0.128GB 128GB (UFS 3.0), not expandable
OS
Android (11, 10), Oxygen OS UI
Device type
Smartphone

Battery

Capacity
800 mAh 800 mAh 4510 mAh
Type
Li - Ion, User replaceable Li - Ion, User replaceable Li - Polymer, Not user replaceable
Charging
OnePlus Warp Charge, Qi wireless charging, Reverse wireless charging
Max charge speed
Wired: 30.0W
Wireless: 30.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
5h 45min
Browsing
10h 0min
Video
9h 15min
Gaming
10h 33min
Find out more details about battery and charging for all phones we have tested on our PhoneArena Battery Score page.

Camera

Rear
Single camera Single camera Quad camera
Main camera
0.3 MP VGA 1.3 MP 48 MP (OIS, Laser and PDAF)
Specifications:
Aperture size: F1.8
Focal length: 25 mm
Sensor size: 1/1.4"
Pixel size: 1.12 μm
Second camera
8 MP (Telephoto, OIS, Laser and PDAF)
Specifications:
Optical zoom: 3.0x
Aperture size: F2.4
Sensor size: 1/2"
Pixel size: 1 μm
Third camera
48 MP (Ultra-wide, PDAF)
Specifications:
Aperture size: F2.2
Focal Length: 14 mm
Sensor size: 1/2"
Pixel size: 0.8 μm
Fourth camera
5 MP (Color filter)
Specifications:
Aperture size: F2.4
Flash
Yes Dual LED
Video recording
220x176 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (480 fps)
Features:
OIS, HDR, EIS
Front
16 MP (EIS, HDR), Video capture: 1920x1080 (Full HD)

Design

Dimensions
3.44 x 1.85 x 0.91 inches
(87.4 x 47 x 23 mm) 		3.74 x 1.89 x 0.60 inches
(95 x 48 x 15.2 mm) 		6.51 x 2.93 x 0.33 inches
(165.3 x 74.3 x 8.5 mm)
Weight
3.00 oz(85.0 g) 2.93 oz(83.0 g) 7.02 oz(199.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5)
Frame: Aluminum
Biometrics
2D Face unlock, Optical in-screen fingerprint
Features
Numeric keypad, Soft keys, Notification light Numeric keypad, Soft keys
Keys
Left: Volume control; Right: Multimedia control, Other Left: Volume control; Right: Lock/Unlock key
Colors
Glacial green

Cellular

5G
Bands n2, n5, n41, n66, n71, SA, NSA
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 6(800), 8(900)
Data Speed
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM

Multimedia

Headphones
No 3.5mm jack
Speakers
Earpiece, Multiple speakers
Features
Dolby Atmos, aptX-HD
Screen mirroring
DLNA,Wireless screen share
Additional microphone(s)
Noise cancellation

Connectivity & Features

Bluetooth
1.2 5.1
Wi-Fi
802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band
MIMO, Wi-Fi Direct, Hotspot
USB
Yes Yes Type-C (reversible), USB 3.1, Features: Charging, Headphones port, OTG
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Dual-band positioning, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass
Other
Computer sync NFC

Regulatory Approval

FCC approval
Date approved: Feb 03, 2005
FCC ID value: A3LSGHX640 		Date approved: Feb 28, 2006
FCC ID value: BEJKG800 		Date approved: Oct 12, 2020
FCC ID value: 2ABZ2-EE007
Measured SAR
Head: 0.56 W/kg
Measured in: 1900 MHz
Body: 0.30 W/kg
Measured in: 1900 MHz 		Head: 0.14 W/kg
Measured in: 1900 MHz
Body: 0.16 W/kg
Measured in: 1900 MHz 		Head: 0.93 W/kg
Body: 0.89 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 0.95 W/kg

Buyers information

MSRP
$ 899
In The Box
Warp Charge 30 Power Adapter, Warp Type-C Cable (Support USB 2.0), Quick Start Guide, Welcome Letter, Safety Information and Warranty Card, LOGO Sticker, Case, Screen Protector, SIM Tray Ejector

Availability

Officially announced
Mar 10, 2005 Apr 14, 2020

Alternative variants

with 256GB storage
RAM 12GB
Internal storage 256GB
Colors Onyx black, Ultramarine blue
MSRP $ 999
for Europe
5G Bands n1, n3, n7, n28, n78, SA, NSA
4G (FDD) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)
4G (TDD) Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500), 46
for T-Mobile
Resistance Water, Dust; IP68
FCC OKs Cingular\'s purchase of AT&T Wireless