Breed via eBay offers the Unlocked Samsung Galaxy S6 Edge 128GB 4G LTE Android GSM Smartphone in Black, Gold, or White, model no. G925v, for $549.99 with free shipping. That's the lowest total price we could find for any GSM model by $76. It features an Exynos 7420 octa-core processor (Cortex-A53 1.5GHz quad-core and Cortex-A57 2.1GHz quad-core), 5.1" 2560x1440 touchscreen AMOLED LCD, 3GB RAM, 128GB internal storage, 16-megapixel rear-facing camera, 5-megapixel front-facing camera, 4K UHD 2160p video recording, 802.11ac wireless, Bluetooth 4.1, and Android 5.0 (Lollipop).