In the past few years, we have covered a whole host of hidden spy cameras here. The Blaikepcam Hidden Camera Wireless Phone Charger is also worth a look. It is a fast wireless charger for iPhone and Android devices that doubles as a WiFi camera. The Blaikepcam has motion detection, loop recording, night vision, and 1080p resolution.
The built-in Micro SD card slot can handle up to 128GB memory cards. You can find out more about it here.