Compare LG Optimus 7 E900

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Photos relative in size Front Side Back	LG Optimus 7 E900‎	Samsung Galaxy A51 4G‎

Dimensions	125 x 59.8 x 11.5 mm	158.5 x 73.6 x 7.9 mm
Weight	not yet known	172 grams
Stand-by	depends on usage	depends on usage
Talk time	depends on usage	32 hour
Design type
Monoblock
Controls
Touchscreen	Multi-touch, Capacitive	Multi-touch, Capacitive
Voice command
Voice dialing
Facial unlock
Fingerprint recognition		Pressure sensitive in-screen
Operating system
Windows Phone	7.5 (Mango)
Android
Display
Auto-rotate
Color display	Adjustable display brightness, TFT	Adjustable display brightness, 16.777.216 colors (24 bits), Infinity-O Display, Hole-punch display
Size	3.8 inch	6.5 inch
Resolution	480 x 800 pixels	2400 x 1080 pixels
Aspect ratio	5:3	20:9
Pixels Per Inch (PPI)	246	405
Screen-to-body ratio	55%	87.4%
Hardware
Camera	Auto focus, Digital zoom, Effects/camera settings, Flash, Quality settings, Panoramic photo, Portrait mode, Video recorder, self-timer	Viervoudige camera-sensor, Auto focus, Image stabilization, Blink Shot, Digital zoom, Effects/camera settings, Flash, Geotagging, Face recognition, Quality settings, Macro mode, Mosaic photo, Burst (Continuous) Shooting, Night mode, Panoramic photo, Portrait mode, Smile Shot, Video recorder, self-timer
Type	5 MP	12 MP + 48 MP + 5 MP + 5 MP
Angle of view (AOV)		123°
F-number		f/2.0 + f/2.2 + f/2.2 + f/2.4
Max. resolution	(camera) 2592 x 1944 pixels + (video) 1280 x 720 pixels	(camera) 8000 x 6000 pixels + (video) 3840 x 1644 pixels
Haptic feedback
Integrated antenna
Processor	Qualcomm Snapdragon	Samsung Exynos 9611, Octa core
Clock Frequency	1 GHz	1.7 GHz + 2.3 GHz
Secondary camera
Type		32 MP
F-number		f/2.2
Max. resolution		(camera) 6528 x 4896 pixels
Materials
Gorilla Glass
Telephony
Flight mode
Integrated handsfree speaker
Vibrating alert
Dual SIM
nano-SIM (4FF)
Videoconferencing
Operating frequency
Quad band
Data network
EDGE
GPRS
HSDPA
UMTS
4G (LTE)		Cat 9 (452 Mbps), Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 20, Band 26, Band 28
HSUPA
Personal Information Management (PIM)
Agenda
Alarm clock
Calculator
Contact list
Date and time notation
Document viewer	Excel files, PowerPoint files, PDF files, Word files	Excel files, PowerPoint files, PDF files, Word files
Phonebook with groups
Photo phonebook
Reminder list
Stopwatch & countdown timer
To-do list
Voice memo
Available applications
Games
Image editor
Photo album
Video codec support		H.263, H.264, MPEG-4
Java application support
Movie editor
Video file support		3GP, 3G2, ASF, AVI, FLV, M4V, MKV, MP4, WebM, WMV
Messaging
E-mail	POP3, SMTP, IMAP4	POP3, SMTP, IMAP4
Instant messaging	Windows Live/MSN Messenger	Google Talk
MMS		Video MMS
Predictive Text Input	T9	T9
SMS	Group messaging, Receive and send concatenated messages	Group messaging, Receive and send concatenated messages
Internet
Internet browser
YouTube support
RSS reader
Navigation
Digital Compass
A-GPS
Beidou
Build-in navigation system		Google Maps, Google Maps Navigation
Galileo
GLONASS
GPS receiver
Audio
Audio codec support		AAC, AAC+, eAAC+, AMR, FLAC, MIDI, Mobile XMF, MP3 VBR, OGG Vorbis, OTA, RTTL/RTX
Polyphonic ringtones	MP3 ringtones	MP3 ringtones
Audio file support		M4A, MP3, WAV, WMA
FM-radio		Stereo, RDS
Build-in memory
Internal memory
Size (RAM)		4 GB
Storage	16 GB	128 GB
Memory card slot		MicroSDHC memory card
Connections
Audio jack plug	3.5 mm	3.5 mm
USB		v2.0, Type-C
Connectivity
Bluetooth	Advanced Audio Distribution Profile (A2DP)	v5.0, Advanced Audio Distribution Profile (A2DP)
DLNA support
Synchronisation	ActiveSync	ActiveSync, SyncML
WAP	2.0	2.0
Wireless Lan (WLAN/Wi-Fi)		Wi-Fi 5 (802.11ac), WiFi Direct support
ANT+
NFC
Tethering
Power supply
Battery	User replaceable	Li-ion
Capacity		4000 mAh
Fast charging
Sensors
Ambient light sensor
Gesture recognition
Gyroscope
Proximity sensor
User interface
One UI
Personalisation
Multiple homescreens
Widgets