Microsoft Store has a Blu Win HD LTE Unlocked Smartphone Sale, $89.99 Free Shipping. Rated 4 out of 5 stars. Available in 4 colors. Review indicates it is the best $89.99  you can spend on a Windows Phone. Rated 4 out of 5 stars.

One of the cheapest no contract Windows Phone 8.1 smartphones.

• 4G speeds on AT&T: Cricket Wireless, Trachoma, Straight Talk, Net10, H20 Wireless, 420 Wireless, Black Wireless, Consumer Cellular, Pure Talk USA, Red Pocket, Telcel America.
• T-Mobile: MetroPCS, Lyca, Speedtalk, Go Smart, Simple Mobile, Net10, Straight Talk, Solavei, Ultra Mobile, Telcel America, Walmart Family Mobile supported in most areas; check with your service provider
• 3G: 850/1700/1900/21004G LTE: 700/1700/2600

Specifications

• 1.2Ghz Quad Core Snap Dragon 410 Processor
• 8GB Storage
• Dual SIM
• 4G LTE
• microSD Card Slot for upto 32GB
• 5in touch screen 720x1280
• GPS
• 802.11n
• 8 MPixel camera, 2MPixel Front Camera