Samsung Galaxy S Aviator
The Droid charge has half the internal memory. Besides that they are very similar.
...with twice as much internal memory...higher benchmark speeds...and a quad band LTE antenna.
Benchmarks the same as Charge on 2.3...
Quad band LTE is better for roaming, sure, doesn't mean much otherwise.
And less than 600mb extra internal available to user, and Charge came with 32gb card pre-installed.
With Quad band it may be able to run on LTE networks overseas.