Lumia windows phone devices under 100 dollars are easily available in USA. Find out the best cheap Go Phone with Windows 10 Mobile. There is a reason why even the cheap Lumia windows phone give mid-range android phones a run for the money. The software is highly optimized – just like on iPhone and thus users are able to get premium experience even on an windows 10 mobile under 100 dollars. A typical windows phone under 100 comes with 8GB flash storage, 512MB / 1GB RAM and a decent camera. Most models come with micro SD card slot for expanding internal storage. So here is the list of best cheap windows phone Go Phones.