The largest phone, the 6-inch Pixi 4, is also the most advanced of the bunch.
On the 6-inch model, the Polaroid app is built right into the camera.
You can see that the shutter button takes on Polaroid's look and feel.
Most of the Pixi 4 phones will run Android 6.0 software at launch.
They'll come in a variety of colors, mostly white, black, silver and gold.
The 6-inch Pixi 4 has a flippable cover you can buy.
Alerts and missed calls appear in the peep-view window.
The phones' backings are smooth and simple.
Pixi phones charge with a standard Micro-USB charger.
You can see the power/lock button and SIM card tray on the phone's right side.
The 6-inch Pixi 4 has straighter sides than last year's more rounded Pixi 3.