The holy grail of prosumer photography is finding a way to combine the optics and light sensitivity of a dedicated camera with the portability and sharing abilities of a smartphone, and the DxO One comes as close as anything on the market. If you’ve had your eye on this unique gadget, Amazon will sell you one for $139 today, one of the best prices we’ve ever seen, and a pittance compared to its original $600 MSRP.
I recommend reading the Gizmodo review for a full rundown of this thing, but basically, it’s a pocket-sized, iPhone-connected camera with a light-gulping 1" sensor, and an f/1.8 prime lens. You can use it standalone, or plug it into your phone to use your iPhone’s screen to line up shots, adjust settings, and of course, share to Instagram. Basically, it’s the best of both worlds.