Hisense U7K 55" (Mini-LED ULED) vs LG OLED B3 65"
The Verdict
Hisense U7K delivers impressive mini-LED performance at an aggressive price point, featuring 1500 nits peak brightness, 144Hz refresh rate, and full HDR format support including HDR10+. LG OLED B3 offers superior contrast and color accuracy with perfect blacks, wider viewing angles, and a larger 65-inch panel, though its 600-nit brightness and 120Hz refresh rate feel less aggressive. Gaming performance is essentially identical (7ms input lag, VRR/ALLM on both). Audio capabilities favor Hisense slightly with 30W versus LG's 20W output. For gaming and bright room performance, the U7K excels at half the price. However, OLED's inherent picture quality advantages,infinite contrast ratio, superior uniformity, and zero blooming,justify the B3's premium for cinephiles and dark room viewing. Budget-conscious gamers should choose the Hisense; home theater enthusiasts will appreciate OLED's excellence.
Who Should Buy
Buy the Hisense U7K 55" (Mini-LED ULED) if…
- →Mini-LED at $649 with 1500 nits brightness is incredible value
- →144Hz with VRR makes it one of the cheapest premium gaming TVs
- →Full HDR format support — Dolby Vision, HDR10+, and HLG
Buy the LG OLED B3 65" if…
- →Most affordable 65-inch LG OLED at $1,299 — great entry into OLED
- →Perfect blacks and infinite contrast inherent to OLED technology
- →Dolby Vision and Dolby Atmos for cinema-quality HDR experience
Category Scores
Pros & Cons
Hisense U7K 55" (Mini-LED ULED)
Pros
- Mini-LED at $649 with 1500 nits brightness is incredible value
- 144Hz with VRR makes it one of the cheapest premium gaming TVs
- Full HDR format support — Dolby Vision, HDR10+, and HLG
- Google TV with Chromecast built-in for easy streaming
- Dolby Atmos support for improved audio immersion
Cons
- Fewer dimming zones than U8K — more blooming visible
- 30W speakers are adequate but not impressive
- Hisense smart TV experience has occasional software bugs
- Build quality and design are functional but not premium
LG OLED B3 65"
Pros
- Most affordable 65-inch LG OLED at $1,299 — great entry into OLED
- Perfect blacks and infinite contrast inherent to OLED technology
- Dolby Vision and Dolby Atmos for cinema-quality HDR experience
- 4x HDMI 2.1 ports with 4K@120Hz for gaming
- Wide viewing angles with no color shift
Cons
- Older α7 Gen6 processor — less effective upscaling than C3's α9
- 600 nits peak brightness is dim — struggles in bright rooms
- 20W speakers are weak — a soundbar is essential
- Wi-Fi 5 instead of Wi-Fi 6 on a 2023 model
Full Specifications
| Spec | Hisense U7K 55" (Mini-LED ULED) | LG OLED B3 65" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 200mm |
| Weight | 31.7 lbs | 41.7 lbs |
| Dimensions | 48.4 x 28.1 x 2.8 inches | 57.0 x 32.8 x 1.8 inches |
| Dimensions (w/ stand) | 48.4 x 30.2 x 9.3 inches | 57.0 x 35.5 x 11.8 inches |
| Audio | ||
| Output (watts) | 30 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 7 | 7 |
| Display | ||
| HDR | Dolby Vision, HDR10+, HDR10, HLG | Dolby Vision, HDR10, HLG |
| Size | 55" | 65" |
| Type | Mini-LED QLED (VA LCD) | OLED (WOLED) |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 144Hz | 120Hz |
| Brightness (nits) | 1500 | 600 |
| Smart TV | ||
| Os | Google TV | webOS 23 |
| Voice assistant | Google Assistant, Alexa | LG ThinQ AI, Alexa, Google Assistant |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 | Wi-Fi 5 |
| Ethernet | ||
| Bluetooth | 5.1 | 5.0 |
| USB ports | 2 | 2 |
| HDMI ports | 4 | 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 LG products. View full details for the Hisense U7K 55" (Mini-LED ULED) or the LG OLED B3 65".