HDMI ARC vs. Bluetooth - Is ARC/eARC Better Than Bluetooth? (2024)

HDMI ARC (Audio Return Channel) and Bluetooth are similar technologies for sending audio from a device to speakers. But there are some crucial differences between them, including sound quality and compatibility.

If you are wondering whether you should use HDMI ARC or Bluetooth, this article will help you decide which option is best for your setup. You will also learn what HDMI ARC and Bluetooth are, how they work, and which one is best to use.

HDMI ARC (Audio Return Channel) allows audio to be returned from a TV over an HDMI cable to an audio receiver. This would typically require another cable from an audio receiver to your TV. Video from a receiver to a TV can still be used through the same HDMI cable while also sending audio from the TV to a receiver when using ARC.

ARC directly connects to your sound system, opposed to connecting it wirelessly, so that you won't have any out-of-sync audio, but instead the highest quality sound your speakers can support. Using HDMI ARC, you can connect your TV with any sound system that supports it without needing extra wires.

HDMI eARC (Enhanced Audio Return Channel), supported on newer HDMI 2.1 devices, enables you to play the latest uncompressed 5.1 and 7.1 surround sound, 32-channel uncompressed audio, and high-bitrate audio formats up to 192 Khz at 24 bit. It also supports Dolby Atmos, DTS:X, DTS-HD Master Audio, and Dolby TrueHD, creating next-level surround sound.

To take advantage of HDMI eARC, you will have to have devices that support all of those listed features, along with the correct cable version (see Our Recommended HDMI 2.1 Cables below).

Bluetooth is handy and easy to use with mobile devices such as smartphones and tablets, but it is not the best choice for watching movies for several reasons.

While it's a cleaner-looking option, there are a few downsides to using Bluetooth with a sound system. The most noticeable issues include possible cut-outs from unreliable connections, latency issues, and audio being out of sync with the video. Bluetooth is also heavily compressed from the source and may not sound as good as other connections such as HDMI. Bluetooth is great for music, depending on the audio device, but watching movies will be worse than using an HDMI cable, especially if the audio is out of sync with the video.

Most Bluetooth-only sound systems also don't support true 5.1 (or higher) surround sound but instead upscale it to sound like its surround audio so that it won't sound nearly as good.

Using Bluetooth is mainly suitable for listening to a soundbar is excellent for casual use or for someone who doesn't mind enjoying music from a 2.1 channel audio system.

Bluetooth speakers/soundbars can be tempting to use since they might make your theater system look cleaner, but they offset those benefits by not matching the audio quality of using HDMI ARC.

With Bluetooth, there may always be the chance of issues, like disconnects or audio being out of sync, and it doesn't support high-quality surround sound as HDMI eARC does. You should use HDMI ARC if you want the best audio quality and most reliable connection, or use Bluetooth if you want a cleaner setup and don't care as much about the best audio quality.

You can also get the benefits of both if your sound system supports ARC and Bluetooth, so you can use the ARC connection for movies and the Bluetooth for playing music from your phone. Many sound systems advertised as wireless also support ARC and the capability of having the speakers wired (not just for power).

Sony HT-A7000 Dolby Atmos Sound Bar Check Price on Amazon Amazon Affiliate Link

Since HDMI 2.1 is backward compatible with older HDMI versions, it's probably best to buy an HDMI 2.1 cable for future-proofing. You will ensure that you'll get the most out of your display without worrying about which one to buy. HDMI 2.1 is also needed for devices that support eARC, for better quality audio to soundbars and audio receivers. If you want to make it even easier, be sure to check out Our Recommended HDMI 2.1 Cables below.

With that said, to get all of the features and speed increase, be sure to check if your display and device (PCs, game consoles, etc.) both support HDMI 2.1 and its features.

Keep in mind that HDMI cables can only go up to specific lengths. If you want a very long HDMI cable, you may need to go with HDMI 2.0 instead and follow one of these HDMI extension methods.

Anker 8K HDMI 2.1 Cable

• After conducting our research and analysis, we have found that the Anker 8K HDMI 2.1 Cable offers exceptional performance and a range of impressive features.
• You can find the Anker 8K HDMI 2.1 Cable (6.6 ft) on Amazon (affiliate link).
• With a bandwidth of 48 Gb/s, it supports high-resolution formats like 8K at 60 Hz, 4K at 120 Hz, and chroma 4:4:4 (no compression), all while delivering stunning Dynamic HDR.
• Additionally, it boasts support for eARC (enhanced Audio Return Channel), allowing for enhanced audio transmission. It is compatible with Dolby Atmos, DTS X 7.1, and DTS X 5.1 surround sound.
• We have found that the Anker 8K HDMI 2.1 Cable offers an excellent solution for those seeking top-notch performance and compatibility. Whether you're a casual viewer or a dedicated enthusiast, this cable delivers the reliability and quality necessary to elevate your home entertainment experience. Anker 8K HDMI 2.1 Cable (6.6 ft) Check Price on Amazon Amazon Affiliate Link

Monoprice 8K Certified Braided HDMI 2.1 Cable

• After conducting our research and analysis, we have found that the Monoprice 8K certified braided HDMI 2.1 cable offers exceptional performance and a range of impressive features.
• You can find the Monoprice 8K Certified Braided HDMI 2.1 Cable on Amazon (affiliate link), available in lengths ranging from 6 to 10 feet.
• With a bandwidth of 48 Gb/s, it supports high-resolution formats like 8K at 60 Hz, 4K at 120 Hz, and uncompressed video resolutions, all while delivering stunning Dynamic HDR and 3D visuals.
• Additionally, it boasts support for eARC (enhanced Audio Return Channel), allowing for enhanced audio transmission. It is compatible with Dolby Atmos, Dolby Vision, and DTS X surround sound.
• We have found that the Monoprice 8K certified braided HDMI 2.1 cable offers an excellent solution for those seeking top-notch performance and compatibility. Whether you're a casual viewer or a dedicated enthusiast, this cable delivers the reliability and quality necessary to elevate your home entertainment experience. Monoprice 8K 48Gbps Certified Braided Ultra High Speed HDMI 2.1 Cable Check Price on Amazon Amazon Affiliate Link

Cable Matters Active 8K Fiber Optic HDMI 2.1 Cable

• After conducting our research and analysis, we have found that the Cable Matters Active 8K Fiber Optic HDMI 2.1 cable offers exceptional performance and a range of impressive features.
• You can find the Cable Matters Active 8K Fiber Optic HDMI 2.1 cable on Amazon (affiliate link), available in lengths ranging from 16.4 to 49.2 feet.
• With a bandwidth of 48 Gb/s, it supports high-resolution formats like 8K at 60 Hz, 4K at 120 Hz, VRR (Variable Refresh Rate), Auto Low Latency Mode (ALLM), and and chroma 4:4:4 (no compression), all while delivering stunning Dolby Vision HDR (10 bit/12 bit color depth).
• Additionally, it boasts support for eARC (enhanced Audio Return Channel), allowing for enhanced audio transmission. It is compatible with Dolby Atmos, Dolby Vision, and DTS X surround sound.
• After conducting our research and analysis, we have found that the Cable Matters Active 8K Fiber Optic HDMI 2.1 cable surpasses expectations, providing an unrivaled solution for those seeking top-notch performance and compatibility. Whether you're a casual viewer or a dedicated enthusiast, this cable delivers reliability and exceptional quality that will elevate your home entertainment experience to new heights. Cable Matters Active 8K Fiber Optic HDMI 2.1 cable Check Price on Amazon Amazon Affiliate Link

Each type of HDMI cable has a limitation of how long it can reach. There's no specific "max" length a cable can go, but a limitation from the material they're made with.

Most newer copper HDMI cables reach around 15 to 25 ft (5 to 7.5 m). HDMI cables made with fiber optic can reach much farther. On average, fiber optic HDMI cables can reach around 50 to 200 ft (15 to 60 m).

Below are the three types of copper HDMI cables with their average length limits and resolutions they can handle at their max cable length:

Why HDMI Cables Have a Max Length

Most HDMI cables are made of copper, limiting the cable's length because it loses signal strength the farther it reaches. Signal loss can happen with cables made of other materials also. This signal loss (attenuation) is measured in decibels per distance—the greater the distance, the more signal loss.

The signal level may not be high enough if an HDMI cable is too long due to too much attenuation. If you need to support a longer distance, you'll need an extender, repeater, or fiber optic HDMI cable. Otherwise, you will need to find a way to use a shorter HDMI cable.

• Short-range extension: HDMI repeater.
• Medium-range extension: Fiber optic HDMI cable or HDMI over Ethernet
• Long-range extension: HDMI over fiber extender.

HDMI Repeater

An HDMI repeater extends the connection for shorter runs by connecting two HDMI cables and amplifies the signals for better transmission.

Determining the max length when using a repeater depends on the HDMI repeater and the HDMI cable type, but I give the average ranges below. Remember that HDMI repeaters are directional, so be sure to use the device's correct input/output sides.

To be safe, assume a repeater can reach only the shorter end of those ranges.

• I recommend the JerGO HDMI 2.0 Repeater on Amazon (affiliate link).
• Extends up to 100 ft for 4K @ 60 Hz.
• Supports 6.0 Gb/s bandwidth with 3D transmission. JerGO HDMI 2.0 Repeater Check Price on Amazon Amazon Affiliate Link

Fiber Optic HDMI Cable

Fiber optic HDMI cables are like standard HDMI cables but made with optical fiber inside the cable and meant for farther distances up to 164 ft (50 m) for 4K @ 60 Hz.

These cables aren't meant to be used with an extender, repeater, or switch and should be used alone. They also must be installed in the correct direction, with the output/display label connecting to the side with the display.

Learn more about fiber optic HDMI cables in my article: What Is a Fiber Optic HDMI Cable and Is It Worth Getting?.

• I recommend the ATZEBE Fiber Optic HDMI Cable on Amazon (affiliate link).
• Supports 18 Gb/s bandwidth and 4K @ 60 Hz chroma 4:4:4 (no compression) with HDR10 and Dolby Vision.
• Comes in lengths ranging from 6 to 164 ft (2 to 50 meters).
• Supports ARC (Audio Return Channel). ATZEBE Fiber Optic HDMI Cable Check Price on Amazon Amazon Affiliate Link

HDMI Over Ethernet Extender

The HDMI over Ethernet extender is similar to an HDMI over fiber optic extender but uses an Ethernet cable for a shorter extension. An HDMI over Ethernet extender can extend the connection up to 130 ft (40 m) for 4K @ 60 Hz or 230 ft (70 m) for 1080p.

Learn more about HDMI over Ethernet in my article: HDMI Over Ethernet - How to Extend HDMI With Cat 5e/6a.

• I recommend the AV Access HDMI 2.0 Over Ethernet on Amazon (affiliate link).

• Supports 18 Gb/s bandwidth and 4K @ 60 Hz chroma 4:4:4 (no compression) with HDR10.

• Supports ARC (Audio Return Channel). AV Access HDMI 2.0 Over Ethernet Check Price on Amazon Amazon Affiliate Link

• To go along with the HDMI over Ethernet extender, I recommend the Cable Matters Snagless Long Shielded Cat6A Ethernet Cable on Amazon (affiliate link). Cable Matters Snagless Long Shielded Cat6A Ethernet Cable Check Price on Amazon Amazon Affiliate Link

HDMI Over Fiber Extender

An HDMI over Fiber extender uses an optical fiber cable to transmit the data to reach a much farther distance. You could use an HDMI over Fiber extender to extend the connection up 1,000 to 3,300 ft (300 to 1000 meters) for 4K @ 60 Hz.

Learn more about HDMI over fiber in my article: HDMI Over Fiber - How to Extend HDMI With Fiber-Optic Cable.

• I recommend the AV Access Fiber Optic HDMI 2.0 Extender on Amazon (affiliate link).

• Supports 18 Gb/s bandwidth and 4K @ 60 Hz chroma 4:4:4 (no compression) with HDR10.

• Supports multi-channel PCM, Dolby, and DTS HD audio supported up to 7.1.

• Supports bi-directional IR pass-through. AV Access Fiber Optic HDMI 2.0 Extender Check Price on Amazon Amazon Affiliate Link

• I also recommend the Cable Matters Multimode Duplex OM3 Fiber Cable on Amazon (affiliate link) to go along with the HDMI over Fiber extender (for indoor use). Cable Matters Multimode Duplex OM3 Fiber Cable Check Price on Amazon Amazon Affiliate Link

Want to learn more about TVs? Check out the articles in my TV series:

• Best TV Display Types
• TV Resolution Explained - 8K UHD vs. 4K vs. QHD vs. FHD
• Choosing the Best TV for Your Room
• Best TV for Playing PlayStation 5 Games
• What Type of TV Is Best for Gaming?
• Ultimate Guide to Samsung QLED TVs
• Best Type of TV for Bright Rooms
• 
• What Type of TV Has the Best Viewing Angle?
• Do LED TVs Have Backlight Bleed?
• How to choose the best soundbar for your TV

Find answers to your HDMI questions by checking out the articles in my HDMI series:

• Is Wireless HDMI Good for Gaming?
• HDMI ARC vs. Bluetooth - Is ARC/eARC Better Than Bluetooth?
• How to Choose the Best HDMI Cable for a 4K or 8K TV
• Are HDMI Cables All the Same?
• Does HDMI 2.0 and 2.1 Support 120, 144, and 240 Hz?
• What Are HDMI ARC and eARC? Are HDMI ARC Cables Different?
• 
• Are HDMI Cables Backward Compatible?
• HDMI 2.1 vs. 2.0 - Which Cable Type Do I Need?
• What Is Wireless HDMI? Is It Worth Buying vs. Cables?
• HDMI Over Fiber - How to Extend HDMI With Fiber-Optic Cable
• What Is a Fiber Optic HDMI Cable and Is It Worth Getting?
• How to Extend HDMI Cables Beyond Their Limits
• HDMI Over Ethernet - How to Extend HDMI With Cat 5e/6a
• Max Length of an HDMI Cable