Warning From CNET: iPhone "Restore" does not delete personal data!
Before you resell or donate your old iPhone/iPad/iPod, the first thing to do is erasing the personal data on it. SafeEraser is a smart tool which can help to wipe your iPhone personal data permanently. Nothing recoverable.
Support iOS Devices:
iPhone: iPhone 4, iPhone 4S,iPhone 5, iPhone 5C, iPhone 5S
iPad: iPad 1, iPad 2, The new iPad, iPad with Retina Display, iPad mini
iPod: iPod touch 4, iPod touch 5
* Wipe EVERYTHING from iDevices: contacts, messages, photos, videos, apps, account info, passwords and other personal data stored on iDevices.
* Meets Mil-spec DOD 5220 - 22 M standard for permanent data destruction; prevents personal data from being recoverable.
* Works with all iDevices - Jailbroken iPhone friendly and also compatible with carrier-locked iPhones.
* Keep your personal information safe, permanently remove it with SafeEraser prior to disposing of your old iDevice.