Toshiba 43" M450 QLED Fire TV vs Toshiba 50LF621U21 50-inch 4K Fire TV

The 50LF621U21 is the better pick for most people: it gives you a 50-inch screen, three HDMI ports and Dolby Vision, which the 43-inch M450 lacks. The M450 counters with QLED panel technology and Dolby Atmos, but at 43 inches and 60 Hz it is a smaller, similar-performing set. Owners of both lines report average build and typical budget-TV edge lighting, so buy on size and ports rather than panel marketing.

• Choose the Toshiba M450 if you want a smaller 43-inch set with a QLED panel and Dolby Atmos in a tight room or bedroom.
• Choose the Toshiba 50LF621U21 if you want the bigger 50-inch picture, three HDMI inputs and Dolby Vision support.