Newegg offers the refurbished Hisense Sero 7 7" 4GB Android Tablet, model no. E270BSA, for $39.99. A $15 mail-in rebate cuts the price to $24.99. With free shipping, that's $5 below last week's refurb mention and tied as the best price we've seen. (It's a current low of $31 in any condition.) It features a 7" 1024x600 touchscreen LCD, 1.6GHz dual-core processor, 1GB RAM, 4GB internal memory, 802.11n wireless, HDMI, and Android 4.1 OS (Jelly Bean). Rebate expires July 31.

A 90-day warranty applies, but it's unclear who backs it.