Samsung QN55LS03FAFXZA Tv
- TV
- 55 inches
- Samsung
- QLED
- More reviewed than 72%
A 144Hz refresh rate on a 55 inch QLED panel stands out in this size class, backed by Tizen smart features and full wired and wireless connectivity.
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How it ranks among the 249 tvs we track
4.3★ across 591 Amazon ratings, Bayesian-smoothed toward the category average.
591 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 249 tvs we track - how the scorecard works · full tvs data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 55 inch QLED panel paired with a 144Hz refresh rate is an unusual combination at this screen size, and Samsung's QN55LS03FAFXZA runs Tizen as its smart platform alongside it, with connectivity spanning Bluetooth, Ethernet, HDMI, USB, and Wi-Fi.
A 144Hz refresh rate is higher than most TVs in this size class, which typically top out at 60 or 120Hz, making this set relevant to buyers connecting a high frame rate source such as a current-generation game console or PC. QLED is Samsung's higher-tier display technology rather than a standard LED backlight.
- 55 in 4K UHD QLED
- 144Hz refresh rate
- Tizen smart platform
- Wi-Fi, Ethernet, HDMI, USB, Bluetooth
Who it's for
Matches buyers who want a 55 inch 4K QLED screen with a refresh rate that keeps up with fast-moving content or gaming. Less relevant to anyone who only watches standard video, where the extra refresh headroom goes unused.
Strengths and trade-offs
Drawn from this product's published specifications.
- 144Hz refresh rate, high for a 55 inch TV
- QLED panel for color and brightness
- Full connectivity: Wi-Fi, Ethernet, HDMI, USB, Bluetooth
- Heavier than standard LED sets at 37.5 lb
- Extra refresh rate is wasted on standard 60fps content
Performance notes
QLED panels use a quantum dot layer to boost color and brightness over standard LED, while the 144Hz refresh rate lets the panel display faster-moving content and higher frame rate sources more smoothly than a 60Hz set. Tizen runs the on-screen smart TV interface and app store.
Specifications
| Brand | Samsung |
|---|---|
| Model | QN55LS03FAFXZA |
| Dimensions & fit | |
| Screen Size | 55 inches |
| Weight | 37.5 pounds |
| Dimensions | 9 × 48.7 × 29.3 inches |
| Construction & materials | |
| Color | Black |
| Compatibility & installation | |
| Connectivity | Bluetooth, Ethernet, HDMI, USB, Wi-Fi |
| Other details | |
| Brand Tech | Samsung |
| Display Tech | QLED |
| Resolution | 4K UHD |
| Smart Platform | Tizen |
| Refresh Rate | 144 Hz |
Other Samsung tvs
How it compares
This product against the closest alternatives we track in tvs.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Samsung QN55LS03FAFXZA TvThis product | 4.3 / 5 | 591 | 3.7 / 5 |
| TCL 65S425 TvTCL | 4.6 / 5 | 44,400 | 4.0 / 5 |
| Insignia NS-55F501NA26 TvInsignia | 4.4 / 5 | 9,600 | 3.9 / 5 |
| Roku 43R4A5R TvRoku | 4.5 / 5 | 4,600 | 3.9 / 5 |
| LG 24LJ4540 TvLG | 4.5 / 5 | 4,300 | 3.9 / 5 |
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Questions about the Samsung QN55LS03FAFXZA
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is the refresh rate of the Samsung QN55LS03FAFXZA?
144Hz, higher than the 60 or 120Hz common in this screen size.
What smart platform does the Samsung QN55LS03FAFXZA use?
Samsung's Tizen platform.
Is the QN55LS03FAFXZA a QLED or standard LED TV?
QLED, Samsung's quantum dot display technology.