LG C4 65" vs Roku Plus Series 55"
The Verdict
LG's C4 OLED delivers flagship performance with its superior 1300-nit peak brightness, 120Hz refresh rate, and exceptional 1ms input lag ideal for gaming and sports. Picture quality is exceptional thanks to OLED evo technology, while the α9 Gen 7 processor handles upscaling beautifully. Roku Plus Series offers tremendous value at $399, providing solid 4K QLED performance with 700-nit brightness and Roku OS simplicity, though 60Hz refresh and 13ms input lag limit gaming appeal. Audio capabilities favor LG significantly (60W vs 20W). At 65" versus 55", LG dominates premium features, but Roku excels as a budget-conscious alternative for casual viewers. Choose LG C4 if gaming, movies, and premium features justify the investment; choose Roku Plus for excellent everyday performance at an unbeatable price.
Who Should Buy
Buy the LG C4 65" if…
- →Perfect black levels from self-emissive OLED pixels — best-in-class contrast
- →All four HDMI 2.1 ports at full bandwidth with VRR, ALLM, and G-Sync Compatible
- →1ms input lag makes it one of the best gaming TVs at any price
Buy the Roku Plus Series 55" if…
- →Roku OS is the simplest, cleanest smart TV platform available
- →Dolby Vision, HDR10+, AND Dolby Atmos decoding — unusual at $399
- →Works with every voice assistant: Alexa, Google, Siri (via AirPlay)
Category Scores
Pros & Cons
LG C4 65"
Pros
- Perfect black levels from self-emissive OLED pixels — best-in-class contrast
- All four HDMI 2.1 ports at full bandwidth with VRR, ALLM, and G-Sync Compatible
- 1ms input lag makes it one of the best gaming TVs at any price
- Dolby Vision IQ and Dolby Atmos support for premium cinematic experience
- webOS 24 is clean, fast, and nearly ad-free compared to Tizen
Cons
- OLED burn-in risk with prolonged static content (e.g. news tickers, HUDs)
- Peak brightness trails Mini-LED rivals in very bright HDR highlights
- Slightly lower brightness than the G4, limiting HDR pop in sunlit rooms
- USB-A ports are only USB 2.0 speed
Roku Plus Series 55"
Pros
- Roku OS is the simplest, cleanest smart TV platform available
- Dolby Vision, HDR10+, AND Dolby Atmos decoding — unusual at $399
- Works with every voice assistant: Alexa, Google, Siri (via AirPlay)
- Wi-Fi 6 for reliable 4K streaming
- QLED color enhancement is visible versus basic LED panels
Cons
- 60Hz panel — no 120Hz or gaming features
- 700-nit brightness is okay but not impressive for HDR highlights
- Roku's ad-supported free channels are prominently pushed in the UI
- No VRR for next-gen console gaming
Full Specifications
| Spec | LG C4 65" | Roku Plus Series 55" |
|---|---|---|
| Body | ||
| VESA mount | 300 x 200mm | 200 x 200mm |
| Weight | 52.9 lbs | 26.5 lbs |
| Dimensions (w/ stand) | 57.0 x 36.9 x 10.1 inches | 48.4 x 30.6 x 10.2 inches |
| Audio | ||
| Output (watts) | 60 | 20 |
| Speakers | 2.2ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 1 | 13 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode | Dolby Vision, HDR10+, HLG |
| Size | 65" | 55" |
| Type | OLED evo | QLED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K UHD) |
| Refresh rate | 120Hz | 60Hz |
| Brightness (nits) | 1300 | 700 |
| Smart TV | ||
| Os | webOS 24 | Roku OS |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Roku Voice, Alexa, Google Assistant, Apple AirPlay 2 |
| Processor | ||
| Chipset | α9 Gen 7 AI Processor 4K | Quad-core |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 6 (802.11ax) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.2 |
| USB ports | 3 | 1 |
| 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 LG products or all Roku products. View full details for the LG C4 65" or the Roku Plus Series 55".