Make sure you BUY the correct BlackBerry 10 device

The following are differences between all of the BlackBerry 10 devices

The London (Z10STL100-1) - The London is the Z10 that was made exclusively for networks that don't have LTE (think smaller markets and developing nations that are just getting 3G or HSPA+). If you're in the U.S. or Canada, odds are you will never see a London.

21Mbps HSPA+
Quad-band HSPA+ 1,2,5/6,8 (850/900/1900/2100 MHz)
Quad band EDGE (850/900/1800/1900 MHz)

The Liverpool (Z10STL100-2) - The Liverpool is the Z10 for GSM carriers in Europe and the rest of the world that have LTE. This device can be used

Quad band LTE 3, 7, 8, 20 (1800/2600/900/700 MHz)
Tri band HSPA+ 1, 5/6, 8 (2100/850/900 MHz)
Quad band EDGE (850/900/1800/1900 MHz)

The Lisbon (Z10STL100-3) - The Lisbon is the Z10 for GSM North American carriers that have LTE. This is one that pretty much every carrier in Canada has, and the one that AT&T and T-Mobile will end having as well.

Quad band LTE 2, 5, 4, 17 (700/850/1700/1900 MHz)
Tri band HSPA+ 1, 2, 5/6 (850/1900/2100 MHz)
Quad band EDGE (850/900/1800/1900 MHz)

The Laguna (Z10STL100-4) - The Z10 for CDMA carriers that have LTE (aka the Verizon Z10).

LTE Band-13 (700MHz)
CDMA Cell-band and PCS-band (850/1900 MHz)
WCDMA Band-1 and Band-8 (2100/900 MHz)

If you are in Africa make sure your device has STL100-2 and you can view this by typing “myver” without the quotes in any writing able application on your device. This does not mean the other devices will not work, but they are not optimised for the region, meaning you might face likely connectivity problem on data. Thought the STL100-2 does not support LTE on the devices