You can now add Amazon to that list as the favorite online retailer is now offering the SIM unlocked VR-enabled version for $450 along with free shipping for Prime members.

Although there are slim pickings these days for Windows 10 Mobile devices at least Alcatel's IDOL 4S is becoming more widely available. Originally isolated to just T-Mobile in the US the unlocked version is also sold at the Microsoft Store.

Alcatel Idol 4S with Windows 10 Specs

Nothing else is different about this unlocked version. You still get the VR headset and slick phone. You can use this on T-Mobile, AT&T and any other GSM carrier (no Verizon or Sprint service, however for CDMA).

Full Review Alcatel IDOL 4S

The SIM-locked T-Mobile version is still available for $288 although some users are now reporting that they must get a plan with it on a purchase. That phone can be unlocked but only after 40 days of active service with T-Mobile.

Alcatel is rumored to be announcing the IDOL 5S in the coming weeks although it is unclear if it will be Android only or also include a Windows 10 Mobile variant. We'll find out more at Mobile World Congress at the end of this month.

Thanks, Bill S., for the tip!