Key feature may different from Key Spec.
User Available Memory: User memory is less than the total memory
due to storage of the operating system and software used to operate
the device features. Actual user memory will vary depending on the operator and
may change after software upgrades are performed.
Network: The bandwidths supported by the device may vary depending on the
region or service provider.
Battery: Actual battery life varies by network environment,
features and apps used, frequency of calls and messages, number of times
charged, and many other factors.