The updated Blackjack, the Blackjack2 SGH-617, steps up with a bigger battery providing a claimed talk time of up to 7 hours. Version two also replaces the D-pad with a scrolling jog wheel as its main navigation tool. Key features include a 2.0 megapixel camera, WM6 for smartphones, HSDPA, document viewer and a faster processor with more internal memory.
Buying a replacement phone will not affect your existing service contract, but are generally more expensive, since they are not being discounted by your carrier.
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Carrier Compatibility
Properly unlocked, this phone should be compatible with:
AT&T - Note! Always confirm compatibility before purchasing.
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