iPhone OS 4: Device Compatibility


iPhone OS 4 has over 100 new features. However, some of those features (or all of them) won’t be available on older versions of the iPhone/iPod touch. Wonder how you’ll fare? Read on.

iPhone 3GS/iPod touch Third-Gen

Both of these will get full compatibility — the whole shebang. Note that the third-gen iPod will only support all the new features on models with 32 or 64GBs of memory; the 16GB model was really a second-gen iPod, which is discussed below.

iPhone 3G/iPod touch Second-Gen

Some compatibility. Multitasking will not be available due to a lower amount of RAM (128MB vs. 256MB on the newer models) and a slower processor. It’s not clear yet whether multitasking is the only new feature that’ll be missing. Nor is it clear as to whether Apple will be charging iPod touch users a fee to upgrade like it did with the iPhone OS 3.

iPhone/iPod touch First-Gen

Apple hasn’t officially said anything on these two yet, and that’s likely a sign that you won’t be able to run OS 4 at all. At least those of you still using these dinosaurs have a new iPhone to look forward to in June.


Obviously, the just-released iPad will be able to run the new OS. It’s worth mentioning because the update won’t be available until the Fall, which seems like a long time considering that the iPhone and iPod touch are getting the update this summer.

How do you feel about Apple’s compatibility decisions? The inevitable course of progress, or a slap in the face?

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