Which is better for a bright living room?

The Hisense M7, because it states up to 1000 nits peak brightness. The TCL QM51L does not publish a brightness figure, so its bright-room performance is harder to judge.

Which has better contrast?

The TCL QM51L states up to 400+ local dimming zones. The Hisense M7 uses a Mini-LED array but does not state a zone count, so the TCL's dimming spec is the more concrete one.

Is the Hisense worth $27 more?

It buys a fourth HDMI port, a built-in subwoofer and a stated 1000 nits. If you need those, yes; if not, the TCL at $398.00 at Walmart as of November 3, 2026 is the cheaper pick.

Which is better for gaming?

Both are 60 Hz native panels. The TCL adds Game Accelerator 144 and Auto Game Mode, which the Hisense does not list, though the Hisense offers Game Mode Plus.

Do both run Google TV?

Yes. Both use Google TV with Google Assistant. The TCL also supports Amazon Alexa and Siri.

Which has more HDMI ports?

The Hisense M7 has 4 HDMI inputs; the TCL QM51L has 3.

Hisense 55" M7 Mini-LED QLED 4K UHD Smart Google TV (55M7SG, 2026 Model) vs TCL 55" QM51L Series QD-Mini LED QLED 4K UHD HDR Smart Google TV (New 2026)

Both are 55-inch Mini-LED QLED Google TVs at 60 Hz, so the choice comes down to brightness, ports and price. The Hisense M7 is rated at 1000 nits with 4 HDMI ports and a built-in subwoofer; the TCL QM51L claims 400+ local dimming zones and Dolby Atmos with DTS Virtual:X but lists only 3 HDMI ports. As of November 3, 2026, the TCL is $398.00 at Walmart and the Hisense is $425.21 at eBay, so the TCL is about $27 cheaper.

Today the TCL 55" QM51L Series QD-Mini LED QLED 4K UHD HDR Smart Google TV (New 2026) costs $27.21 less at its best price.

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