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The FOMA SO903i is Symbian OS-based mobile phone manufactured by Sony Ericsson for NTT DoCoMo in Japan.
The SO903i comes in a variety of colours (Lush Orange, Black, White, Sonic Yellow) and features a 3.2 Megapixel camera and a 3.0 inch widescreen QVGA TFT LCD screen.
The SO903i supports Chaku-Uta Full® for downloading full music tracks.
Conventional i-appli memory is limited to 100KB per stored program and 400KB for related data, but Mega i-appli offers a total of 1MB per program and data combined. The related data can also be stored externally, increasing capacity by tens of megabytes, depending on the type of external memory used.
Tripled capacity of IC card allows storage of more i-appli software for e-wallet services.
iC Transfer Service enables nearly all data on the IC card to be transferred to a new phone (315 yen per usage including tax).
Stored data, such as phone numbers and photos, can be transferred via IC card by holding one handset up to another.
Improved ToruCa functions, such as capturing coupons and other promotional data directly from QR codes. Also, after the phone communicates with the in-store reader/writer, previously saved data is automatically displayed on the phone. The reader/writer also deletes expired ToruCa promotions automatically.
The SO903i is preinstalled with software for DoCoMo's DCMX mobile credit card on DoCoMo's iD platform. The number of iD readers/writers reached 60,000 (as of the end of September) and the number of DCMX subscribers topped 860,000 (as of October 11).
Keitai-Osagashi Service enables users to locate misplaced handsets using GPS technology by accessing the My DoCoMo portal for PCs (free until June 30, 2007, after which there will be a charge of 315 yen per usage including tax).
Omakase Lock and Data Security Service. The former enables users who lose their phone to call a 24-hour call center to have the phone's smart card and personal data locked immediately, and the latter allows phonebooks to be stored on the DoCoMo network.
imadoco search is a location service enabling people to use their phones to monitor the precise location of designated persons, such as children, via i-mode or PC.
Preinstalled i-appli navigation software detects users' locations in order to guide them to where they want to go.
Periodic monitoring of designated people using GPS contents.
Business mopera GPS Location enables companies to use DoCoMo's FOMA network in order to have third-parties, such as security companies, track the location of designated people using GPS.
Notification of the caller's precise location when making an emergency call to police, fire department or Japan Coast Guard, beginning April 2007 in some areas and eventually to be extended nationwide.
Up to 10 files totaling 2MB (increased from 500KB) can be attached to mail, including files created with Microsoft® Word or Excel. It is not possible to inspect Word and Excel files by the SO903i.
Deco-mail capacity has been increased to enable text mail of up to 10,000B and animated icons of up to 90KB resulting in Deco-mails up to about 100KB. Also, the number of these icons for one message has been increased from 10 to 20.
New Deco-mail Pictograms include more than 240 20x20-dot animated icons preinstalled in the SO903i. These high-resolution icons can be easily inserted into messages using the same simple procedure for conventional icons. Additional icons can be downloaded in a batch using the Deco-mail Pictogram Pocket function available with the SO903i.
During a PushTalk walkie-talkie session, other people can be called up and the caller can automatically redial people who did not respond the first time. Automatic speaker phone mode is also possible.
i-mode, FOMA, i-appli and WORLD WING are trademarks or registered trademarks of NTT DoCoMo, Inc. in Japan and other countries.
DCMX, iD, Deco-mail, PushTalk, Data Security Service, Osaifu-Keitai, ToruCa and i-channel are trademarks or registered trademarks of NTT DoCoMo, Inc. in Japan.
NTT DoCoMo's FOMA, i-channel , DCMX, iD, Deco-mail, PushTalk, Data Security Service and Deco-mail services are only available to subscribers in Japan.
The i-mode trademark is licenced to several Asian and Europian entities.
Chaku-Uta Full is a registered trademark of Sony Music Entertainment Corporation.
NAPSTER is a registered trademark of Napster, LLC. in the U.S. and other countries.
Microsoft is a registered trademark or trademark of Microsoft Corporation in the U.S. and other countries.
G-GUIDE,G-GUIDE MOBILE and other G-GUIDE related logos are registered trademarks of Gemstar-TV Guide International, Inc.

| Symbian OS Version: | v8.1 |
|---|---|
| Width: | 50mm |
| Length: | 106mm |
| Weight: | 125g |
| Display: | approx 3.0” (240 X 432 dots); |
| Color Depth: | 262,144 colours; WQVGA TFT LCD |
| Number of Cameras: | 2 |
| Camera Pixels: | Outer: CMOS with AF Effective resolution: 3,200,000pixels Recorded resolution: 3,200,000pixels Inner: CMOS Effective resolution: approx 110,000 pixels Recorded resolution: approx 100,000 pixels |
| Continuous talktime: | approx 160 minutes |
| Continuous video talktime: | approx. 90 minutes |
| Memory: | miniSD memory card (optional) / MemoryStick ProDuo(optional) / MemoryStick Duo(optional) |