I have an Eachine E52 drone from China.
This is also very cheap. It has folding arms and when folded, is about the size of an iPhone7 in width and just under 1 inch longer.
It came with a transmitter and also has a wide-angle 2MP camera for taking images and video.
The transmitter has a button which makes it do flips, if that's your thing.
The drone creates a WiFi hotspot and can be directly controlled from a connected smartphone, using the manufacturer's app.
The app is also required to record/save images and video locally to the smartphone.
It's transmitter has an attachment clip for the smartphone, so you can view what the camera see whilst you are operating it from the supplied transmitter.
The 500 mAh battery lasts around 5 minutes and takes around 60 minutes to charge, so I bought 3 extra batteries.
The drone does not have GPS, but does have an altitude-hold feature which comes into effect when the sticks are released.
The altitude-hold feature uses an on-board barometer to try and maintain it's height, but mine drifts up slowly.
I will try it again outdoors as it has only been used inside so far, to see if it drifts up as much when there is nothing else around to affect it.