As one of its daily deals, Qualitycellz via eBay offers the open-box HTC One M9 32GB 4G LTE Unlocked GSM Android Smartphone for $299.99 with free shipping. That's $50 less than our mention of a refurb from two weeks ago and the lowest total price we've seen for this unlocked phone. (It's also $116 under the best price we could find for a new one today.) It features a 5" 1080x1920 (1080p) touchscreen LCD, 32GB memory, 3GB RAM, 802.11ac wireless, 20-megapixel camera, HD video, a quad-core 2GHz processor, GPS, and Android 5.0 OS (Lollipop). It's compatible with AT&T and most other GSM networks. Deal ends today.
It's listed as "under HTC warranty" but the length is unclear. Also, it may have cosmetic imperfections on the screen or housing.