Exclusively for Prime members, Amazon offers the 4th-generation Unlocked Motorola Moto X4 32GB 4G LTE Android Smartphone with Lockscreen Offers and Ads in Super Black or Sterling Blue for $279.99 with free shipping. That's $50 under our mention from last week and the lowest price we've seen. (It's the best deal for the phone without lockscreen offers by $70.) This IP68 water-resistant phone works with Amazon Alexa and features a Qualcomm Snapdragon 630 2.2GHz 8-core processor, 5.2" 1920x1080 (1080p) touchscreen, 3GB RAM, 32GB storage, 12- and 8-megapixel dual rear cameras, 16-megapixel front-facing camera, 4K video recording, 802.11ac wireless, Bluetooth 4.2, USB-C, fingerprint reader, and Android 7.1 OS (Nougat).