If you’re looking for a cheap branded tablet than Asus tablets are always a good starting point. My recommendation would be this Asus MeMO Pad ME172V-A1-WH because it has a small price, a 7 inch screen (with almost HD resolution) and Android 4.1 installed.
It has a very awesome price (see best price and deal) and a good discount. I know that for some the internal memory of 16GB is little and because of that you should know that you can buy and attach a micro SD card like SanDisk Ultra 32 GB MicroSDHC C10/UHS1.
From the below image you can see how it looks like. I must say that this device is available in more colors like grey and pink.
This tablet PC has a VIA Prizm WM8950 processor with one core and the RAM memory s 1GB. Because of the hardware the battery lasts up to 7 hours, but this depends on how you use it because it can last more or less. It has no 3G, but because of the USB port you can attach a compatible 3G dongle like Huawei E173.
Pros: it has good hardware and games go on it because of the Mali 400 graphics card; the screen is good for HD movies; the OS is Android 4.1, but Asus provides frequent updates to the OS; the camera is a very good one (you should know that it has two cameras: one for taking pictures and the other for filming).
Cons: the screen is not HD, but if want to 30 dollars more than you get ME173X-A1-BL – a model with HD screen and quad core processor.
For a 150 dollar budget you will find some cheap China tablets but I recommend this one because of the build quality and the features that are included. It could be a great gift and you should know about it that it has support for games and video content sites because of the Adobe Flash Player that’s included. More information about this tablet PC you can see from the below clip that’s a very good preview.