Differences between i900 and i910

The Omnia consist of two models which is the i900 and i910. Omnia i910 is only sold in the USA while Omnia i900 is an international version. Most of Omnia users will be owning the i900 as it operates on the GSM Network which most of the countries in the World use.

Differences between i900 and i910

i900--international version, not in the US. Supports GSM and GSM 3G.
i910--CDMA version of the i900. Does not support GSM, and only supports EVDO.

Another major differences is the i900 has video calling and hence a front-facing camera while i910 does not.

There are actually not much differences in the functions of both models. The i900 comes in 8GB and 16GB , while the i910 only 8GB. THe i900 GPS is unlocked unlike the VZW version, which rumor has it that is going to change. THe i910 has visual voice mail, and Mobile IM preinstalled. The i900 does not. There are many ROM versions, supported and custom, out for the i900. The i910 has only one thus far. The i900 has Samsung Today 2 enabled out of the box while the i910 does not. It requires a cab install or a registry hack.