米国HSPA利用の方はI5500をおすすめします。
アジアはI5503が安いです。
GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 2100
108 x 56 x 12.3 mm
Weight 102 g
DISPLAY Type TFT capacitive touchscreen, 256K colors
Size 240 x 320 pixels, 2.8 inches
Accelerometer sensor for UI auto-rotate
Touch Wiz v3.0
SOUND Alert types Vibration; MP3, WAV ringtones
Speakerphone Yes
3.5 mm audio jack
MEMORY Phonebook Practically unlimited entries and fields, Photocall
Call records Practically unlimited
Internal 170 MB
Card slot microSD (TransFlash) up to 16GB, 1GB included, buy memory
DATA GPRS Class 10 (4+1/3+2 slots), 32 - 48 kbps
EDGE Class 10, 236.8 kbps
3G HSDPA 7.2 Mbps
WLAN Wi-Fi 802.11 b/g, DLNA
Bluetooth v2.1 with A2DP
Infrared port No
USB v2.0 microUSB
CAMERA Primary 2 MP, 1600x1200 pixels
Features Geo-tagging
Video Yes
Secondary No
Android OS, v2.1 (Eclair)
CPU 600 MHz processor
Messaging SMS(threaded view), MMS, Email, Push Mail, IM, RSS
Browser HTML
Radio Stereo FM radio with RDS
Games Yes
GPS with A-GPS support
Java Via third party application
Social networking integration
MP4/H.264/H.263 player
MP3/WAV/eAAC+ player
Organizer
Document viewer (Word, Excel, PowerPoint, PDF)
Google Search, Maps, Gmail, YouTube
Voice memo
T9
BATTERY Standard battery, Li-Ion 1200 mAh
Stand-by Up to 521 h (2G) / Up to 375 h (3G)
Talk time Up to 9 h 30 min (2G) / Up to 6 h 30 min (3G)