As one of its Prime Day deals, Amazon offers Prime members the Oral-B 7000 SmartSeries Electric Rechargeable Toothbrush with Bluetooth in Black for $89.99 with free shipping. That's $10 under our mention from last month and tied as the lowest price we've seen. (It's a current low by $20.) It features Bluetooth, real-time feedback on brushing habits, a Cross Action round brush head, and six cleaning modes. Deal ends today.