Blutek via eBay offers the Unlocked Sony Xperia Z1 HSPA+ 3G Android Smartphone in Black, model no. C6902, for $399.99 with free shipping. That's $100 under our February mention and the best price we've seen for this phone. (It's also a current low by $100.) This 3G quad-band GSM smartphone features a Qualcomm Krait 2.2GHz quad-core processor, 5" 1080x1920 touchscreen, 16GB internal storage, up to 13 hours of talk time, 20.7-megapixel camera, 1080p video recording, Bluetooth 4.0, wireless 802.11ac, and Android 4.2 OS (Jelly Bean). Deal ends June 7 at 11 am ET.