Hisense A6K 55" (UHD LED) vs Samsung S90C 65" (4K OLED)
The Verdict
Samsung's S90C represents a premium tier that justifies its significant price premium with OLED technology delivering perfect blacks, 1500-nit peak brightness versus the Hisense's 350 nits, and 120Hz refresh rates for smoother motion. Gaming performance strongly favors Samsung with VRR, ALLM, and 6ms input lag compared to the A6K's 14ms latency. Audio quality on the S90C includes 40W with Dolby Atmos versus the A6K's modest 16W 2.0 setup. Hisense A6K excels as a value proposition,55-inch 4K at $329 with HDR support and solid 350-nit brightness delivers respectable picture quality for casual viewing and budget-conscious buyers. Samsung edges slightly on smart features with superior OS and multi-assistant support. For competitive gaming, cinephile viewing, or someone prioritizing peak performance, the S90C is essential; for everyday TV watching on a tight budget, the A6K provides genuine value despite its limitations.
Who Should Buy
Buy the Hisense A6K 55" (UHD LED) if…
- →55-inch 4K at $329 is one of the cheapest large-screen TVs available
- →Dolby Vision and HDR10+ support at a budget price is impressive
- →VA panel provides decent contrast for the price
Buy the Samsung S90C 65" (4K OLED) if…
- →65-inch QD-OLED at $1,999 undercuts LG C3 OLED while being brighter
- →Wider color gamut and higher brightness than traditional WOLED panels
- →Infinite contrast with no light bleed or blooming
Category Scores
Pros & Cons
Hisense A6K 55" (UHD LED)
Pros
- 55-inch 4K at $329 is one of the cheapest large-screen TVs available
- Dolby Vision and HDR10+ support at a budget price is impressive
- VA panel provides decent contrast for the price
- Lightweight at 25.4 lbs — easy to handle and wall-mount
- Alexa built-in for voice control without an external device
Cons
- 60Hz panel with no VRR — not suited for gaming
- 350 nits is very dim — HDR is essentially non-functional
- VIDAA OS has a limited app selection compared to Google TV
- 16W audio is weak and tinny — external speakers are mandatory
- No HDMI 2.1 or Dolby Atmos
Samsung S90C 65" (4K OLED)
Pros
- 65-inch QD-OLED at $1,999 undercuts LG C3 OLED while being brighter
- Wider color gamut and higher brightness than traditional WOLED panels
- Infinite contrast with no light bleed or blooming
- Excellent for gaming with 4K@144Hz, VRR, and low input lag
- Anti-glare coating reduces reflections in bright rooms
Cons
- No Dolby Vision — HDR10+ only
- 40W speakers are underwhelming for a $2,000 TV — needs a soundbar
- Potential OLED burn-in risk with static content
- Wi-Fi 5 on a premium 2023 TV feels like a cost-cutting measure
Full Specifications
| Spec | Hisense A6K 55" (UHD LED) | Samsung S90C 65" (4K OLED) |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 300mm |
| Weight | 25.4 lbs | 40.6 lbs |
| Dimensions | 48.4 x 28.1 x 3.2 inches | 56.8 x 32.5 x 0.5 inches |
| Dimensions (w/ stand) | 48.4 x 30.0 x 8.7 inches | 56.8 x 34.5 x 10.1 inches |
| Audio | ||
| Output (watts) | 16 | 40 |
| Speakers | 2.0ch | 2.1ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 14 | 6 |
| Display | ||
| HDR | Dolby Vision, HDR10+, HDR10, HLG | Quantum HDR OLED, HDR10+, HLG |
| Size | 55" | 65" |
| Type | Direct LED (VA LCD) | QD-OLED |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 120Hz (144Hz via Game Mode) |
| Brightness (nits) | 350 | 1500 |
| Smart TV | ||
| Os | VIDAA U6 | Tizen OS |
| Voice assistant | Alexa | Bixby, Alexa, Google Assistant |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Ethernet | ||
| Bluetooth | 5.0 | 5.2 |
| USB ports | 2 | 2 |
| HDMI ports | 3 | 4 |
Related Comparisons
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.
Explore more in tvs, see all Hisense products or all Samsung products. View full details for the Hisense A6K 55" (UHD LED) or the Samsung S90C 65" (4K OLED).