If you’re building a future-proof home entertainment or gaming setup, HDMI 2.1 is essential—and the LG C3 OLED is one of the best TVs on the market with full HDMI 2.1 support in 2025. From ultra-fast gaming response to next-gen sound and resolution capabilities, here’s why it stands out.
What is HDMI 2.1 and Why It Matters
HDMI 2.1 is the latest standard in audio/video transmission, enabling:
4K at 120Hz
Variable Refresh Rate (VRR)
Auto Low Latency Mode (ALLM)
Enhanced Audio Return Channel (eARC)
Faster bandwidth (up to 48Gbps)
LG C3’s Full HDMI 2.1 Implementation
Unlike some TVs that limit HDMI 2.1 to only two ports, the LG C3 features four HDMI 2.1 ports—ideal for users with multiple next-gen devices.
Devices You Can Connect:
PS5 and Xbox Series X (120Hz gaming)
Nvidia RTX or AMD GPU PCs
eARC-enabled soundbars
Blu-ray players and streaming boxes
Gaming Benefits with HDMI 2.1
HDMI 2.1 ensures:
Lower input lag (<5ms at 4K 120Hz)
Seamless frame rate transitions (VRR)
Instant Game Mode switching (ALLM)
Support for Dolby Vision Gaming (LG exclusive)
Best Pairings:
Use with Xbox Series X for VRR + Dolby Vision
Use with PS5 for 120Hz FPS gaming
Home Theater Benefits
HDMI 2.1 isn’t just for gaming. It enhances movie and streaming experiences:
eARC: Passes high-bitrate Dolby Atmos from TV to soundbar
Dolby Vision 4K120: High frame-rate content support
Compared to Other HDMI 2.1 OLED TVs
| Feature | LG C3 OLED | Sony A80L | Samsung S90C |
|---|---|---|---|
| HDMI 2.1 Ports | 4 | 2 | 4 |
| Dolby Vision Gaming | Yes | Yes | No |
| G-SYNC Compatible | Yes | No | No |
| eARC Support | Yes | Yes | Yes |
Related Blog: Best OLED TV for Gaming
HDMI 2.1 and Future-Proofing
With increasing availability of 4K120 content, gaming titles, and eARC-enabled soundbars, HDMI 2.1 ensures that your setup stays relevant for years to come. LG’s support across all ports adds extra flexibility.
Related Posts:
Learn more about the gaming edge: Best OLED TV for Gaming
Compare LG to Samsung: LG C3 vs Samsung S90C
Learn about Alexa routines for HDMI input: Smart OLED TV with Alexa
Final Thoughts
The LG C3 is arguably the best OLED TV with HDMI 2.1 support in 2025. Its four ports, compatibility with every major console, and Dolby Vision Gaming support make it the top pick for gamers and cinephiles alike.
Bundle with a certified HDMI 2.1 cable (e.g., Zeskit Maya or Belkin Ultra High Speed) for best performance.