The answer — one pick, priced
Get the
TCL QM6K 55"
no budget ceiling
The best 55-inch TV under $500 by a wide margin — mini-LED local dimming, native 144Hz and Dolby Vision IQ, with Onkyo 2.1 sound well above its price.
Fit ledger — need → measured evidence
■ The catch — co-equal billing, always
It is the cheapest here, and it shows. Around ~240 dimming zones and ~1,500 nits against the QM7K's ~640 zones and ~2,400 nits — blooming halos are visible in dark scenes, and you get only 2 HDMI 2.1 ports. This is a very good $498 TV, not a quiet flagship.
Dealbreaker? Runner-up №1 (TCL QM7K) buys ~640 zones and ~2,400 nits for ~$100 ↓
■ Every product has a catch. Verdicts that hide it are how bad buys happen.
Don't buy this if…
- budget under $300 for a 55-inch TVbudget tvs under 500 dossier →
- you specifically want an OLED TV at any sizeoled tvs dossier →
Wrong product for you is still a bad buy. These are the cases where we'd send you somewhere else.
Runners-up — if your needs differ
Adjacent verdicts — other needs, same method
Different budget, different household, different job — each of these is already researched, priced and verified. Take the one that matches your need.
Traps — this verdict avoids
Why the TCL QM6K 55" is right for you
It avoids every trap below — and for two, no cap, it is the pick because it delivers:
Samsung skips Dolby Vision
Every Samsung set in this size — the S95F, S90F and QN90F — does HDR10+ only, with no Dolby Vision at all. Apple TV+, Netflix and Disney+ lean on Dolby Vision, so their best HDR streams drop back to plain HDR10 on a Samsung panel.
Two HDMI 2.1 ports, not four
The Hisense U8QG, both TCL mini-LEDs and even the $2,398 Sony BRAVIA 8 II ship with only 2 HDMI 2.1 ports; the LG and Samsung sets have 4. A console, a PC and a soundbar run out of full-bandwidth ports fast — and on budget models not every port carries full bandwidth.
There is no cheap OLED at 55 inches
55-inch OLED starts at ~$848 (LG B5) — no sub-$600 OLED exists at this size. Everything cheaper is mini-LED, and mini-LED blooms: halos around bright objects on dark backgrounds. The TCL QM6K runs ~240 dimming zones against the QM7K's ~640, and that gap is exactly what blooming control costs.
Provenance — 10 sources, dated
Winners are picked from the full research dossier at knowledgelib.io. Prices, stock and listings are re-verified monthly.