PhotoGearNews posted a short video about the Giroptic iO, a 360 camera accessory for iPhones and iPads.
Like the Nano, the iO attaches to iPhones. However, one advantage of the iO is that it is compatible with a wider range of iOS devices. The Nano’s interior side has a curved shape to follow the shape of the iPhone 6 and 7 series. However, because it is curved, it cannot be used on an iPhone 5S or SE unless you use a modified adapter. In contrast, the iO is compatible with a wider range of iPhones and iPads. The iO’s photo resolution is also higher than the Nano (3840 x 1920 vs. 3040 x 1520) but its video resolution is lower (1920 x 960 for the iO vs. 3040 x 1520 for the Nano).
According to PhotoGearNews, Giroptic is also working on an Android version of the iO. Here’s the video from PhotoGearNews: