TCL 5-Series S555 65" (QLED) vs Vizio M-Series 55"
The Verdict
Both TVs deliver solid 4K performance at accessible prices, but serve different viewing scenarios. The TCL 5-Series S555 offers a larger 65-inch screen with 800 nits peak brightness and full Dolby Vision support, making it better for spacious living rooms and HDR content. Its QLED panel and 120Hz native refresh rate provide smooth motion, while the 8ms input lag suits casual gaming. The Vizio M-Series 55-inch costs $150 less and weighs considerably lighter at 28 lbs versus 42.3 lbs, making it easier to mount or relocate. It matches the TCL's gaming specs (8ms lag, VRR, ALLM) and brightness levels, though the smaller screen limits immersion. Both feature Google TV ecosystems, though Vizio adds AirPlay 2 integration. Audio output is nearly identical at 20-24 watts across 2.0 channels without Atmos. For buyers with limited space or budgets, the Vizio delivers exceptional value with comparable gaming performance and HDR support. Those prioritizing screen real estate and future-proofing should choose the TCL, where the 10-inch size advantage and slightly superior brightness justify the $150 premium.
Who Should Buy
Buy the TCL 5-Series S555 65" (QLED) if…
- →65-inch 4K with 120Hz and VRR at $599 is outstanding value
- →Both Dolby Vision and HDR10+ support — rare at this price
- →QLED color enhancement produces vivid, saturated colors
Buy the Vizio M-Series 55" if…
- →120Hz with VRR and 4K@120Hz at under $450 is great for console gamers
- →Dolby Vision and HDR10+ dual support
- →Four HDMI 2.1 ports — enough for every console and streaming device
Category Scores
Pros & Cons
TCL 5-Series S555 65" (QLED)
Pros
- 65-inch 4K with 120Hz and VRR at $599 is outstanding value
- Both Dolby Vision and HDR10+ support — rare at this price
- QLED color enhancement produces vivid, saturated colors
- Wi-Fi 6 and four HDMI ports (one HDMI 2.1) handle modern setups
- Google TV platform with Chromecast built-in
Cons
- Only 1 HDMI 2.1 port — the other 3 are HDMI 2.0
- 800 nits is decent but not as impressive as the 6-Series
- No Dolby Atmos — audio is basic
- Edge-lit local dimming with limited zones shows blooming
Vizio M-Series 55"
Pros
- 120Hz with VRR and 4K@120Hz at under $450 is great for console gamers
- Dolby Vision and HDR10+ dual support
- Four HDMI 2.1 ports — enough for every console and streaming device
- Wi-Fi 6 and Chromecast built-in for fast streaming
- Quantum color delivers better color volume than basic LED
Cons
- SmartCast OS is slow and has fewer apps than Google TV
- 800-nit brightness is adequate but not impressive for HDR
- No local dimming zones — contrast is limited
- Vizio's long-term software support and update track record is inconsistent
Full Specifications
| Spec | TCL 5-Series S555 65" (QLED) | Vizio M-Series 55" |
|---|---|---|
| Body | ||
| VESA mount | 300 x 300mm | 200 x 200mm |
| Weight | 42.3 lbs | 28.0 lbs |
| Dimensions | 57.2 x 33.0 x 3.2 inches | — |
| Dimensions (w/ stand) | 57.2 x 35.6 x 12.3 inches | 48.3 x 30.4 x 10.6 inches |
| Audio | ||
| Output (watts) | 24 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 8 | 8 |
| Display | ||
| HDR | Dolby Vision, HDR10+, HDR10, HLG | Dolby Vision, HDR10+, HLG |
| Size | 65" | 55" |
| Type | QLED (VA LCD) | Quantum LED |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K UHD) |
| Refresh rate | 120Hz | 120Hz (native) |
| Brightness (nits) | 800 | 800 |
| Smart TV | ||
| Os | Google TV | SmartCast OS |
| Voice assistant | Google Assistant | Google Assistant, Apple AirPlay 2, Chromecast |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 | Wi-Fi 6 (802.11ax) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 1 | 1 |
| HDMI ports | 4 | 4 |
| Processor | ||
| Chipset | — | IQ Active Processor |
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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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