LG
LG B4 OLED TV
TVs
$1,299List price
Explore this product Your shortlist, side by side
LG B4 OLED TV vs TCL QM7 Mini-LED TV
Find the differences that matter for your next decision.
TCL
TCL QM7 Mini-LED TV
TVs
$799List price
Explore this product What matters most to you?
Start with all rankable specifications, or focus on a particular use.
Your starting point
Buy the LG B4.
- Leads 3 of 4 rankable overall specs; TCL QM7 Mini-LED takes 1.
- HDMI 2.1 ports: 4 vs 2
How we reached this
We compare the published specifications relevant to your priority. Each rankable specification counts once; your selected requirements can rule a product out. This is a guide to the numbers, not a laboratory performance score.
Input lag (4K 120, game mode): ~5.5 ms vs ~6 ms at 120Hz / ~12 ms at 60Hz
TCL QM7 Mini-LED is $500 cheaper. Pay the difference only if hdmi 2.1 ports matters to you.
The trade-off to know
Check first: the LG B4 has burn-in risk. the LG B4 has a glossy screen, no anti-reflective coating. Tick them under deal-breakers if that rules it out.
Look at the differences ↓Refine your requirements
What would rule one out?
Side by side
The differences, in detail.
Start with the key specs, then explore as much as you need.
| What you’re comparing | LG B4 OLED TV | TCL QM7 Mini-LED TV |
|---|---|---|
| Panel typePicture | WOLED | QD-Mini LED (VA panel with full array local dimming) |
| Native refresh ratePicture | 120 Hz | 120 Hz (up to 144 Hz VRR) |
| Peak brightness (HDR)Picture | ~650–700 nits HDR peak | Up to 2,400 nits peak brightness |
| ContrastPicture | Infinite (per-pixel) | Ultra-high native contrast with localized dimming |
| HDMI 2.1 portsGaming | 4 | 2 (Ports 1 and 2 support 4K 144Hz; port 4 has eARC) |
Showing 5 of 28 specifications. Missing values stay unlisted. About the sources
Both sides of the decision
What you gain. What you give up.
LG B4 OLED TV
Reasons to choose it
- Four full-bandwidth HDMI 2.1 ports at an accessible OLED price point
- Perfect blacks and infinite contrast with zero blooming
- Ultra-low input lag and full VRR support for gaming
Worth considering
- Lower peak brightness than C4 and G4 series
- Glossy screen reflects ambient light in bright rooms
TCL QM7 Mini-LED TV
Reasons to choose it
- Outstanding brightness and local dimming for under $1,000
- Up to 144Hz native refresh rate with FreeSync Premium Pro
- Wide HDR support including Dolby Vision and HDR10+
Worth considering
- Only two HDMI 2.1 ports
- Audio is basic and benefits from a soundbar
Beyond the spec sheet
Living with your choice.
Explore the ownership details available for this pair.
Everyday ownership notes
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
LG: What to watch for
- Software / Apps
Smart TV interface runs sponsored ads and banner recommendations.
- Ergonomics
Thin integrated TV speakers lack low-end bass punch.
TCL: What to watch for
- Software / Apps
Smart TV interface runs sponsored ads and banner recommendations.
- Ergonomics
Thin integrated TV speakers lack low-end bass punch.
Know what’s behind the comparison
Published specs. Visible sources.
Clinchmark compares manufacturer specifications and other published information. We have not independently lab-tested these products. Editorial assessments and unknown values are identified in the specification details.
Catalog snapshot: September 1, 2026. Prices, availability, and provider terms can change.
Still weighing it up?
Which is cheaper, the LG B4 or the TCL QM7 Mini-LED?
TCL QM7 Mini-LED costs $500 less at list price.
What is the biggest catch with the LG B4 or TCL QM7 Mini-LED?
TCL QM7 Mini-LED has this deal-breaker: only two HDMI 2.1 ports. A PS5, an Xbox and a 4K120 PC cannot all connect at full bandwidth, and one port doubles as eARC.
Which is better for gaming, the LG B4 or the TCL QM7 Mini-LED?
For gaming, buy the LG B4. Leads 2 of 2 rankable gaming specs. HDMI 2.1 ports: 4 vs 2
What cannot be compared from spec sheets?
Of the 28 specs tracked here, 24 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.