Which is better for a bright living room?

The TCL QM7K. Its mini LED backlight and high brightness claims give it more headroom against window light and reflections.

Which is better for gaming?

The TCL for refresh rate: 144Hz native with Game Accelerator and FreeSync Premium Pro. The Sony has four HDMI 2.1 ports with VRR at 120Hz, which is plenty for consoles.

Which has better picture processing?

Sony. Its processing is widely regarded as stronger for upscaling and motion, while the TCL leans on brightness and dimming zones.

Is the Sony worth stepping up to?

If you want Sony's processing, Wi-Fi 6E and a more polished experience, yes. If brightness and 144Hz matter more, the TCL gives you more for the money.

Neither maker publishes a lifespan figure. Both are LED-backlit sets with similar panel life; build quality is close, and warranty terms vary by retailer.

TCL QM7K QD-Mini LED 4K TV vs Sony BRAVIA 7 65" Mini LED QLED TV

The TCL QM7K is the brighter, more feature-loaded set: QD-Mini LED with up to LD2500 dimming zones, a 144Hz native panel, Wi-Fi 5, and Bang & Olufsen audio. The Sony BRAVIA 7 is the safer all-rounder, with Sony's processing, Wi-Fi 6E, Bluetooth 5.3, and a 120Hz panel. Buy the TCL for a bright room, big HDR highlights and 144Hz gaming. Buy the Sony if you want Sony's picture processing and a more polished, reliable smart experience.

Choose the TCL QM7K if you watch in a bright room, want the punchiest HDR highlights, or game at up to 144Hz.
Choose the Sony BRAVIA 7 if you value Sony's processing, better Wi-Fi and Bluetooth, and a more consistent out-of-box picture.

Prices

TCL QM7K QD-Mini LED 4K TV: $1,299.99 at TCL North America (checked today)