 Chances are you've seen this message on your phone. There's typically three ways to deal with this. You could buy a phone with more storage, or one with expandable storage, which most people don't do. You could plug your phone into your computer, offload all the photos and videos that you've taken to make more space. Or worse, you could delete apps and photos and videos and all the other fun stuff you use for your phone for to make room for more fun stuff. But what if you didn't have to do any of that? Well that's the promise with the Nextbit Robin. On its surface, the Robin is a pretty typical mid-range Android phone with a pretty nice design. It's $400 and runs Android 6.0 Marshmallow. It has a 5.2 inch screen that's sharp enough but a little bit washed out, a Qualcomm Snapdragon 808 processor and 3GB of RAM, a fingerprint sensor, a 13 megapixel camera and 5 megapixel selfie camera, front-facing speakers, and a USB-C charging port with fast charging. All that's pretty common stuff for a modern smartphone. The Robin's design is arguably more interesting than its spec sheet. It's sharp and angular and its soft plastic finish stands out among the sea of aluminum phones without making it feel cheap. Its pastel colors are also really eye-catching and it's refreshing to see after staring at so many grey, gold and silver smartphones for so long. But specs and design are just side stories with the Robin. Its real appeal is that it's never supposed to run out of storage. It has the typical 32GB of onboard storage, but the Nextbit gives each Robin owner 100GB of cloud storage too. That effectively gives you the storage space of a phone with a 128GB of built-in storage for a much lower price. This cloud storage isn't like what you get with Dropbox or Google Drive either. Nextbit storage is solely for storing the stuff that doesn't fit on your phone while still providing easy access to it. The Robin software does this in a few unique ways. It will upload all of the photos you capture, leaving smaller versions of them on your phone, and it will upload all your apps and their data to the cloud when you start to run out of space. All the uploaded apps are removed from your phone's storage, letting you continue to shoot photos and download new apps without worrying about running out of space. Uploaded apps and games show up as greyed-out icons in the launcher, and they can be restored on demand, complete with all of your settings and progress that was there when the app was removed from your phone. It's a pretty slick system, but it can take a few minutes to download and restore an app when you're out and about. You can pin apps to the phone so they'll never be removed, and you can easily see a list of all the archived apps saved in the cloud. You can also manage when the Robin will do its backups, what will be backed up, and clean up space from backed-up apps on demand. The system's cool, but it isn't foolproof. Aside from the long time it takes to restore a backed-up app, it doesn't yet backup video to Nextbit's cloud, which takes up more storage space on your phone than really anything else. The Robin isn't the fastest or best-performing smartphone you can get, and its camera isn't as good as an iPhone, Galaxy, or Nexus phone. But it does the basis just fine, and it does last a full day between charges. It's about exactly what I'd expect from a $400 Android smartphone at this point. So its real pitch here is never running out of space, or at least giving you more storage than you might expect from a phone at this price. And in that respect, the Robin delivers it with style.