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The Samsung Galaxy S20 FE supports the standard SBC and AAC Bluetooth codecs, and Samsung’s own Scalable codec on many firmware versions. It does not support aptX, aptX HD, LDAC or LC3 on the phone itself. Whether your s20 fe bluetooth codec choice actually sounds better depends on what your headphones also support, because audio always falls back to the most compatible codec both devices share.

Why codec support on the S20 FE matters

A Bluetooth codec is the method used to compress audio before it is sent wirelessly to your headphones. Compression affects bitrate, latency and how much detail survives the trip. Bluetooth Codecs Explained: SBC, AAC, aptX, LDAC, LC3 covers each codec in depth, but the practical point is simple: a codec only works when both the phone and the headphones support it. If either side lacks it, the connection drops to SBC.

SBC is mandatory for all Bluetooth audio devices, so it is always the fallback. On the S20 FE, the codecs you will most often see are:

  • SBC: universal, lowest common denominator, typically around 200–330 kbps depending on settings.
  • AAC: common on Apple and many Android-compatible headphones, usually around 250 kbps, and often a better match for iPhones than for Samsung phones.
  • Samsung Scalable: a proprietary codec that Samsung has used on its own devices, scaling between lower and higher bitrates depending on the connection.

Because the S20 FE does not offer aptX or LDAC, headphones that advertise those codecs will fall back to SBC, AAC or Scalable when paired with this phone. That is not a fault, just a compatibility limit.

Factors that decide which codec you actually get

Four things determine the codec used in any given session:

  1. The phone’s supported list: the S20 FE sets the upper bound.
  2. The headphones’ supported list: check the manufacturer’s spec sheet for codecs such as AAC, aptX or LDAC.
  3. Developer options settings: the active codec can be overridden manually once Developer options is enabled.
  4. Interference and range: weak signals can force a step down in bitrate, even when a higher codec is selected.

Manufacturers often list codec support on the packaging or in the product manual. Owners frequently report that the codec shown in the app or on the phone does not always match what they expected, so verifying with the phone’s own menu is worth the extra minute.

How to check and change the codec on your S20 FE

Use these steps to see what is active and adjust it:

  1. Pair your headphones with the S20 FE in Settings > Connections > Bluetooth.
  2. Open Settings > About phone > Software information and tap Build number seven times to enable Developer options.
  3. Go back to Settings > Developer options and scroll to the Bluetooth audio codec entry.
  4. Select the codec you want, such as AAC or Scalable, then reconnect the headphones if the change does not apply immediately.
  5. Play a test track and, if your headphones show a codec indicator in their companion app, confirm the active setting there.

Practical tips for better wireless audio

  • Keep the phone and headphones within a clear line of sight to avoid forced bitrate drops.
  • Turn off Wi-Fi scanning or other heavy radio use during important listening sessions where possible.
  • If you use video calls or gaming, check latency rather than codec alone, since low-latency modes can matter more than bitrate.
  • Update the headphone firmware through its companion app, as codec support is sometimes added in later releases.

What we’d use

If you want headphones that take full advantage of the codecs the S20 FE supports, look for models that list AAC and Samsung Scalable support on their spec sheets, such as the Samsung Galaxy Buds2 Pro, which are built to work with Samsung phones.

For a wired-equivalent option that avoids Bluetooth codec limits entirely, a pair of USB-C headphones such as the Google Pixel Buds Pro is a reasonable companion for Android users, though codec choice still matters for Bluetooth pairing.

Over-ear models with strong AAC support are another route to consider if you listen for long periods.

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Does the S20 FE support aptX?

No. The S20 FE does not support aptX, aptX HD or aptX Adaptive, so headphones using aptX will fall back to a codec the phone does support.

Is AAC better than SBC on Samsung phones?

Usually, yes. AAC generally delivers higher quality than SBC at a similar bitrate, though results depend on your headphones and environment.

Why does my codec keep switching?

Signal interference or distance often forces a step down in bitrate. Keeping the devices closer and reducing radio congestion usually stabilizes the connection.

How do I know which codec my headphones use?

Check the manufacturer’s spec sheet or companion app. For a deeper explanation of how codecs and connectivity interact, see Headphone Connectivity: Bluetooth, LE Audio and Wired.