Which blackberry device will support OS 4, 5 and 6?

Hi i need to buy a blackberry to test my applications. I want to b开发者_运维百科uy a device which supports more OS versions (I will be happy if it supports all versions). Which Blackberry device will supports OS 4, 5 and 6 ?? can any one help ??

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BlackBerry devices only ever tend to support two major OS releases so you're out of luck trying to run all three on any one handset.

If you can only buy one handset then I suggest you buy one the later ones. This is because a phone running OS7 can also run applications written for OS6,5,4.5 etc

There are still quirks you will run into, but even the two phones running the same OS may function differently. E.g. if the internal storage is based on a microsd card or not.

RIM has done an excellent job of providing simulators for every type of phone so in the first instance you can download and try these.

If you run into a problem that's specific to one device and you cannot replicate it on the simulator then another option is to subscribe to services like DeviceAnywhere

In my opinion if you are designing a UI it's essential to be able to test touchscreen and trackball devices. Therefore I suggest the Torch or Bold 9900 as be good candidates for you as they can do both.

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There is no BlackBerry device that supports all versions: OS 4.x and OS 5 and OS 6.