Best Buy offers the Samsung Galaxy S6 Edge 32GB 4G LTE Android Smartphone for AT&T in Gold Platinum, White Pearl, or Black Sapphire, model no. SM-G925AZDAATT, for $399.99 with free shipping. That's $30 under last month's mention of an open-box unlocked unit and the lowest total price we've seen without a contract. (It's the best now by $80.) This GSM phone 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, 32GB internal storage, 16-megapixel rear-facing camera, 5-megapixel front-facing camera, 4K UHD 2160p video recording, 4G LTE connectivity, 802.11ac wireless, Bluetooth 4.1, up to 23 hours talk time, and Android 5.0 (Lollipop).

Also available is the Samsung Galaxy S6 Edge+ 32GB 4G LTE Android Smartphone for AT&T in Gold Platinum, model no. 6930A, or Black Sapphire, model no. 6938A, for $499.99 with free shipping. That's $100 under our November mention of an unlocked unit and the best price we've seen for this phone without a contract. (It's a low now by $80 for any version.) It features an Exynos 7420 octa-core processor (Cortex-A53 1.5GHz quad-core and Cortex-A57 2.1GHz quad-core), 5.7" 2560x1440 touchscreen AMOLED LCD, 4GB RAM, 32GB internal storage, 16-megapixel rear-facing camera, 5-megapixel front-facing camera, 4K UHD 2160p video recording, 802.11ac wireless, Bluetooth 4.2, and Android 5.1.1 (Lollipop).