If you regret not opting for the iPhone with more storage, you can upgrade your phone with the SanDisk iXpand Memory Case. It lets you add up to 128GB of extra storage to your iPhone 6 or 6S, so you can take more photos, watch more videos, or listen to more music. Extra memory is great, but the case also lets you attach a 1,900mAh battery pack to boost your phone's battery life. Watch our hands-on video for a closer look.

The SanDisk iXpand Memory Case can also help protect your iPhone. It is designed with a hard plastic outside and soft rubber inside for protection.

The iXpand Case App is the companion app to the iXpand Case that allows you to access and manage your content stored in your case. The app automatically organizes and arranges all the content into photos, videos, music. You can also set up an automatic transfer of all your photos and videos directly to the case.

The SanDisk iXpand Memory Case is available now in Blue, Grey, Red, and Teal with memory options for 32GB, 64GB, and 128GB. The case starts at $59.99 while the external battery pack will sell for $39.99.

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