LG Optimus Speed (P990) vs Sony Ericsson Xperia Arc S (LT18i)

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Side by side comparison between LG Optimus Speed vs Sony Ericsson Xperia Arc S phones, differences, pros, cons and full specifications. What's the better?

9/11/2016 5:08 PM, updated: 6/19/2025 7:29 PM

Compare Sony Ericsson Xperia Arc S X LG Optimus Speed (P990) 06Points

Specifications Compare Models Pictures

4"
IPS

480x800

8
MP

1.3mp

512MB
RAM

Dual-core

1500
mAh

(Removable)

09Points Sony Ericsson Xperia Arc S (LT18i) Compare LG Optimus Speed X

Specifications Compare Models Pictures

4.2"
LED

480x854

8
MP

512MB
RAM

Single-core

1500
mAh

(Removable)

What's the better phone? Sony Ericsson Xperia Arc S (LT18i)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

6 Advantages LG Optimus Speed (P990)	vs	9 Advantages Sony Ericsson Xperia Arc S (LT18i)
+8GB (6GB available)18 times More internal storage for applications and files	vs	1GB (320MB available)
+TFT IPS LCDAdvantage TFT IPS LCD display is brighter and more vivid	vs	TFT LED-Backlit LCD
+(front) 1.3MPAdvantage A front-camera is best for taking selfies	vs	Not supported
+Full HD (1920x1080)125% More image quality for recording videos with the primary camera	vs	HD (1280x720)
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+Video callingAdvantage The video calling allows to make calls with voice and video	vs	Not supported
1GHz 32bit Dual-core	vs	+1.4GHz 32bit Single-core (45nm)23% More powerful processor, you can open your applications faster
139 grams (4.87 ounces)	vs	+117 grams (4.1 ounces)19% Lighter
10.9 millimeters (0.43 inches)	vs	+8.7 millimeters (0.34 inches)25% Thinner
480x800 pixels	vs	+480x854 pixels7% Higher resolution screen
4"	vs	+4.2"5% Larger screen
Not supported	vs	+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness
3G HSUPA	vs	+3G+ HSPA+Advantage The 3G+ HSPA+ network is newer and faster
(3G HSUPA) 7.2 Mbps	vs	+(3G+ HSPA+) 14.4 Mbps100% Faster for surfing the internet and download files
Not supported	vs	+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos

29 Common items in both devices

512MB LPDDR2

Until 32GB microSD, microSDHC

16 million

233 PPI

(back) 8MP

LED flash

Only digital zoom

+22 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
Change model		Choose the model
Model	Optimus Speed (P990)	Xperia Arc S (LT18i)
Other model names	LG Optimus 2X Speed P990, LG P990	Sony Xperia Arc S LT18, Sony Ericsson Ayame
Country or region available	Germany, Austria, Belgium, Netherlands, Switzerland	(Global, International)
Brand	LG	Sony Ericsson
Release date	1/24/2011	9/1/2011
Depth	10.9 millimeters (0.43 inches)	8.7 millimeters (0.34 inches)
Size (width x height)	63.2 x 123.9 millimeters (2.49 x 4.88 in)	63 x 125 millimeters (2.48 x 4.92 in)
Weight	139 grams (4.87 ounces)	117 grams (4.1 ounces)
Build, materials	feature not registered	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
Display type	TFT IPS LCD	TFT LED-Backlit LCD
Screen size	4" inches	4.2" inches
Screen-to-body ratio	~58.2% (screen-to-body ratio)	~61.7% (screen-to-body ratio)
Display resolution	480x800 pixels	480x854 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	233 PPI	233 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass	Scratch-resistant glass
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Sony Mobile BRAVIA Engine
🤖 Operating System
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
System version	Android 2.2.1 Froyo	Android 2.3.4 Gingerbread
Firmware update	Android 4.0.4 Ice Cream Sandwich ICS	Android 4.0.4 Ice Cream Sandwich ICS
User Interface	feature not registered	feature not registered
⚙️ Processor
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
Chipset	32bit: NVIDIA Tegra 2 250 AP20H	32bit: Qualcomm Snapdragon S2 (MSM8255T) (45nm)
CPU	Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core)	Single-core, 1 processor: 1x 1.4GHz Scorpion (Single-core)
GPU graphical controller	ULP NVIDIA GeForce	Qualcomm Adreno 205 (266MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
RAM memory	512MB LPDDR2	512MB LPDDR2
Internal storage	8GB (6GB available)	1GB (320MB available)
External storage	Until 32GB microSD, microSDHC (dedicated slot)	Until 32GB microSD, microSDHC (dedicated slot)
📶 Mobile networks
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
Dual-SIM	Not supported	Not supported
SIM card	1 slot (Single-SIM) Standard mini-SIM (2FF)	1 slot (Single-SIM) Standard mini-SIM (2FF)
Maximum Download / Upload	7.2/5.76 Mbps	14.4/5.76 Mbps
Network technology	2G, 3G	2G, 3G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS 900/2100	UMTS 900/2100
Primary 4G network	Not supported	Not supported
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA	CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
Secondary 2G network	Not supported	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	Not supported
📷 Camera
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
Back camera (main camera)	8 megapixels	8 megapixels
Main camera resolution	3264x2448 pixels	3264x2448 pixels
Video recording (primary)	Full HD (1920x1080) 24 fps	HD (1280x720) 30 fps
Flash	LED flash	LED flash
Focal aperture	feature not registered	f/2.4 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
Autofocus	Autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	feature not registered	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	Not supported	Not supported
Camera extras	feature not registered	feature not registered
📸 Front camera
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
Front camera (secondary)	1.3 megapixels	Not supported
Front camera resolution	1280x1024 pixels	Not supported
Video recording (secondary)	VGA (640x480)	Not supported
Front flash	Not supported	Not supported
Focal aperture	feature not registered	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	Not supported	2 microphones
Radio	FM (RDS)	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, DivX, XviD, H.263, H.264, WMV	MP4, H.263, H.264, WMV
Audio formats	MP3, WAV, WMA, eAAC+	MP3, eAAC+, WMA, WAV
🔌 Connectivity
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
USB	MicroUSB 2.0	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	Micro HDMI Type D	Micro HDMI Type D
Bluetooth	2.1 + A2DP	2.1 + A2DP
WiFi	802.11 b/g/n [wifi4] (2.4GHz)	802.11 b/g/n [wifi4] (2.4GHz) WiFi hotspot
DLNA	Supported	Supported
GPS	A-GPS, GeoTagging	A-GPS, GeoTagging
NFC	Not supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
Sensors	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
Battery type	Li-Ion: lithium-ion (Removable)	LiPo: li-ion polymer (Removable) BA750
Battery capacity	1500 mAh	1500 mAh
Charger, watts	Wired charging	Wired charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	7.9 hours	7.6 hours
Standby	400 hours (16.7 days)	460 hours (19.2 days)
➕ Other features
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Not supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, Flash player	HTML, XHTML, Flash player
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Black • NVIDIA Tegra Zone • WiFi hotspot • Java framework	• Colors: Pure White, Midnight Blue, Misty Silver, Gloss Black, Sakura Pink • 8GB microSD included • Java framework
☢️ Radiation rate
	LG Optimus Speed (P990)	Sony Ericsson Xperia Arc S (LT18i)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.66W/kg (head)