سامسونگ اسجیاچ-تی۵۴۹ یکنمونه از گوشیهای تلفن همراه سری T شرکت سامسونگ می باشد که توسط همین شرکت به بازار عرضه شدهاست.
Although the Gravity's main feature is its QWERTY keyboard, there are other capabilities included with it as well.
Applications and games
From T-Zones, one can download Java applications that run on mobile phones and store them in the phone.
Supports MP3 file formats, and can be added via Universal Serial Bus (USB), MicroSD, or Bluetooth. It is also possible to listen to music with a wireless Bluetooth headset. Songs can be set as a ringtone or alarm tone.
In the United States, this phone was released on T-Mobile USA. In Canada, the Gravity 2 was previously available first on Rogers Wireless, then later on its Chatr brand. Both carriers have discontinued the device in 2011. They now carry other QWERTY feature phones instead.