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The FOMA™ F904i has a rotating 3.1 inch display supporting 240×432 dots and viewing angle of 170 degrees which is the same as LCD TV's. It has a sensor which adjusts the brightness levels automatically based on ambient lighting conditions. The phone comes with a Digital TV tuner so you can watch live TV on the move.
2in1 support
This service provides the capabilities of two separate handsets in one single unit. Under a single FOMA card, users are provided with two phone numbers and two i-mode mail addresses, and these are accessed independently by means of a Mode Switching function ("A Mode", "B Mode" and "Dual Mode"). Switching between modes changes the phone number, i-mode mail address, address book, mail boxes and call history. When using A Mode, the customer cannot view B Mode, and vice-versa -- a feature that greatly enhances security.
Uta-hodai support
Users can download full music tracks from i-mode sites supporting Uta-hodai for a flat monthly subscription fee.

| Symbian OS Version: | v8.1 |
|---|---|
| Width: | 50mm |
| Length: | 108mm |
| Weight: | 138g |
| Display: | approx 3.1” (240 X 432 dots); 262,144 colors; WQVGA TFT LCD |
| External Memory : | microSD™ memory card (optional) |
| Cameras | Outer: CMOS camera with AF |
FOMA and i-mode are trademarks or registered trademarks of NTT DoCoMo, Inc. in Japan and other countries.
NTT DoCoMo's FOMA service is only available to subscribers in Japan.
2 in 1 is a registered trademark of NTT DoCoMo, Inc. in Japan.
Uta-hodai is a trademark of NTT DoCoMo, Inc. in Japan.
microSD is a trademark of the SD Association.