The 4GB internal memory rich just for the usual communication and social media apps.
I have installed: Whatsapp, FB, FB Messenger, Instagram, Twitter, web-app, Audible. In addition, very little.
For games let alone speed is ever no place available.
All this would be ok, you could, as usual with popular smartphones, on the external SD card, with which you can upgrade, move some apps. But that does not go. This function is here simply not provided. And thus the 4GB internal memory are quite fast.
What comes: but the audio books from Audible can not be saved on the external SD, the music of the Amazon MP3 app.
The camera (which, incidentally, is not very good), their photos stored on the external storage. SD, if desired.
Add to that the smart phone is extremely slow. When you open an app like Instagram or Facebook, you can wait for the touch ever 10-20s before what happens at the same sites. The baby reacts sometimes delayed.
Conclusion: want to make for bloody smartphone beginners who raussuchen except making calls, sending SMS, Whatsapp and rail links otherwise, it's ok. But, as I said, you can buy it (actually) not a smartphone.