What is the difference between Zeltiq brand for CoolSculpting vs other brands which they use in Brazil and Colombia?

The real issue is safety. Zeltiq's coolsculpting machine has safety checks built in to protect your skin and tissues during the procedure. Zeltiq's coolscupting process is FDA approved and the other machines are not.

CoolSculpting is a non-invasive, clinically proven procedure
to selectively reduce fat layers in problem areas using a patented cooling
technology. CoolSculpting is safe because the delivery of precise cooling
affects only targeted fat cells, leaving adjacent tissue unharmed and intact.
The procedure developed by ZELTIQ is based on sound science called Cryolipolysis,
discovered by scientists from Harvard Medical School. Some benefits of CoolSculpting include: NO
needles, NO surgery, NO downtime. It’s safe. It’s convenient. The results are
dramatic!