Samsung says Wave 525 and Wave 575 have similar specs except one noteworthy addition. The Wave 575 adds support for 3G HSDPA network whereas Wave 525 only supports EDGE.
Wave 575’s is thin at just 11.9mm and includes 3.2-inch WQVGA TFT LCD, Wi-Fi 802.11n, Bluetooth, Samsung Apps support, 100MB internal memory with a possibility to expand via microSD slot. Just like Wave 525, Wave 575 will also come in three color choices, namely Black, White and Pink.
As for the availability, Wave 575 will come to Sweden in mid-November and gradually rolling to other markets.