Sony Ericsson Xperia Arc S (LT18i/LT18a) – Detailed English Specifications
The Sony Ericsson Xperia Arc S is a 2011 high‑end Android smartphone, an upgraded version of the Xperia Arc, boasting a 1.4GHz Snapdragon S2 chip, 4.2‑inch Mobile Bravia Engine display, 8.1MP Exmor R rear camera with 720p video, 1500mAh battery, and Android 2.3.4 (upgradable to 4.0.4).
1. Core Overview
Category Details Launch Announced Aug 2011; released Sept 2011 (global) Model LT18i (global), LT18a (Americas) Positioning Flagship Android smartphone (2011) OS Android 2.3.4 (Gingerbread); upgradable to 4.0.4 (Ice Cream Sandwich) Network 2G (GSM 850/900/1800/1900), 3G (HSPA 14.4/5.76 Mbps) MSRP ~€210 (2011 launch) Colors Misty Silver, Midnight Blue, Gloss Black, Pure White
2. Key Hardware
Display
Type: 4.2‑inch LED‑backlit LCD, capacitive touchscreen, 16M colors, Mobile Bravia Engine
Resolution: 480×854 (FWVGA, 16:9, ~233 PPI)
Protection: Scratch‑resistant glass; multi‑touch support
Body & Design
Dimensions: 125×63×8.7 mm (slim 8.7mm profile)
Weight: 117g
Build: Plastic unibody; Mini‑SIM
Sensors: Accelerometer, proximity, ambient light, magnetometer
Performance
Chipset: Qualcomm Snapdragon S2 MSM8255T (1.4GHz, 45nm)
CPU: Single‑core Scorpion (1.4GHz)
GPU: Adreno 205
RAM/Storage: 512MB RAM; 1GB internal (320MB user‑available); microSD up to 32GB (dedicated slot, 8GB card included)
Camera System
Camera Specs Features Rear 8.1MP Exmor R sensor, f/2.4, 28mm, LED flash, autofocus 720p@30fps video, image stabilization, panorama, face detection Front VGA (0.3MP), no flash Video calls, basic selfies
Battery & Charging
Battery: 1500mAh Li‑Po (non‑removable)
Standby: Up to 460h (2G/3G)
Talk time: Up to 7h25min (2G); up to 7h35min (3G)
Charging: microUSB 2.0 (wired only, no wireless charging)
Connectivity
Wi‑Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth 2.1 + A2DP, EDR
GPS + A‑GPS, GLONASS
3.5mm audio jack; stereo FM radio with RDS
microUSB 2.0 (USB Host)
3. Software & Multimedia
UI: Custom Sony Ericsson UI with Timescape, Facebook Inside Xperia 2.0
Audio: xLOUD, TrackID; supports MP3, eAAC+, WMA, WAV, Ogg Vorbis
Video: Supports MP4, H.264, H.263, WMV; 720p playback
Extras: NeoReader barcode scanner, document viewer, motion gaming
4. Core Advantages & Limitations
Advantages Limitations Slim 8.7mm design, lightweight (117g) Limited user storage (320MB internal) Mobile Bravia Engine for enhanced display Single‑core CPU; 512MB RAM (constrained for later Android) 8.1MP Exmor R camera with 720p video No 4G; non‑removable battery Upgradable to Android 4.0.4 No modern connectivity (USB‑C, NFC)
5. Variant Differences
Variant Key Differences LT18i 3G bands: HSDPA 900/2100 (global) LT18a 3G bands: HSDPA 850/1900/2100/800 (Americas)
Ruigu Electronic 
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