iPhones support SBC and AAC only. No LDAC, no aptX family. Apple hasn't licensed them. In practice, iPhone → Bluetooth audio runs at AAC, ~256 kbps, which Apple optimizes in hardware. An LDAC-rated receiver or headphones will not raise this ceiling when the source is an iPhone. On the hearing side, Apple documents its MFi hearing-aid program; its Bluetooth profiles list and accessory design guidelines carry no LE Audio or LC3 entry.
Codec support matrix
| Codec | Status | Max bitrate | Notes |
|---|---|---|---|
| SBC | Supported | 328 kbps | Universal fallback; used when AAC isn't available |
| AAC | Supported | ~256 kbps | Apple's preferred codec, hardware-optimized end-to-end |
| LDAC | Not supported | — | Sony codec; Android 8+ only |
| aptX HD / Adaptive / LL | Not supported | — | Qualcomm licensing never extended to iPhone |
| LC3 (LE Audio) | Not supported | — | No LE Audio entry in Apple's iOS Bluetooth profiles list; the Accessory Design Guidelines mention neither LC3 nor LE Audio |
Statuses cross-checked against Apple's Bluetooth profiles list, the Accessory Design Guidelines and the per-model specs pages below, October 2026.
Per-model differences: none
Unlike Android, the codec set is identical across models: the iPhone 13, 14, 15, 16 and 17 lines all behave the same. Carrier, region and storage don't change it either. If a spec sheet claims an iPhone "supports LDAC", it's wrong. The iPhone 18 Pro generation extends the same record: today's iPhone Bluetooth codecs check spans the four current spec pages, item by item, in the matrix below.
| Check | The documented record | Source / as of |
|---|---|---|
| iPhone 16 specs page | "Bluetooth 5.3" radio line; no Bluetooth codec enumeration; the one codec string, AAC, sits in the audio playback formats list | apple.com specs, 2026-10-28 |
| iPhone 17 specs page | "Bluetooth 6" radio line; same pattern, no codec enumeration, AAC only in audio playback | apple.com specs, 2026-10-28 |
| iPhone Air specs page | "Bluetooth 6" radio line; same pattern | apple.com specs, 2026-10-28 |
| iPhone 18 Pro / 18 Pro Max specs page | "Bluetooth 6" radio line; same pattern | apple.com specs, 2026-10-28 |
| iPhone 13 to 15 specs pages | No longer published; the three URLs now redirect to the general iPhone page. The profiles list covers these generations by rule: every profile row reads "iPhone 5s and later" | Redirects and profiles list checked 2026-10-28 |
The hearing-aid record
Bluetooth music is only half of the iPhone codec story. The other half is hearing devices, and Apple's record there runs on its own track.
The documented hearing track is MFi. Apple keeps the Made for iPhone compatibility list, opening line: "These Made for iPhone (MFi) hearing aids are compatible with iPhone, iPad, Mac, and Apple Vision Pro devices that meet the system requirements." Pairing runs through Settings > Accessibility > Hearing Devices, and Live Listen can turn the iPhone into a remote microphone for an MFi hearing device, AirPods, or Beats.
AirPods carry Apple's own hearing features. Apple's accessibility page describes the AirPods Pro 2 and AirPods Pro 3 "end-to-end hearing health experience" with a Hearing Test, a "clinical-grade Hearing Aid feature", and Hearing Protection. That path lives on Apple's own accessories; the AirPods profile keeps their codec record.
The LE Audio track has no entry in Apple's documentation. Three checks anchor this, all reproducible: the Bluetooth profiles list for iOS enumerates nine profiles and none is LE Audio; the Accessory Design Guidelines, Apple's accessory-facing technical document, contain no LE Audio, LC3, Auracast or hearing aid mention across 404 pages; and none of the hearing pages above mentions LE Audio or LC3. The same silence runs through the per-model specs pages, where Auracast, the broadcast feature of LE Audio, also appears nowhere. On the Android side the record differs: Google documents LE Audio headphones and hearing aid devices connecting from LE-Audio-capable phones, and our LC3 profile keeps that side of the story.
What this means in practice
- iPhone → Bluetooth headphones: AAC is the ceiling. Premium "LDAC headphones" fall back to AAC with an iPhone source.
- iPhone → home stereo via Bluetooth receiver: still AAC from the phone. A receiver's LDAC support only benefits Android/PC sources, but a good DAC and clean RCA output still matters for the analog stage.
- You want LDAC quality from an iPhone library: the honest answer is you can't over Bluetooth: use an Android/PC source, or go wired/airplay-class streaming instead.
- Reading about "iPhone LDAC" specifically: the iPhone LDAC record is the dedicated archive of Apple's documented silence on that codec; this page is the general matrix.
Buying an "LDAC Bluetooth receiver" does not upgrade an iPhone source. Codec negotiation picks the best codec both ends support. With an iPhone that's always AAC. See our AAC profile for why that's less bad than it sounds.
FAQ
No. The iPhone 17 line carries the same codec set as earlier models: SBC and AAC, with LE Audio/LC3 still not enabled by Apple.
At ~256 kbps with Apple's hardware encoder it is transparent for most listeners on most material. Measured comparisons (see our codec data pages) put well-implemented AAC close to aptX.
No. iOS exposes no codec selection. Third-party apps can't change this either. Negotiation happens at the OS/stack level.
The documented hearing track on the iPhone is Made for iPhone (MFi): Apple keeps a compatibility list and pairing runs through Settings. For LE Audio, no support appears anywhere in Apple's documentation: the iOS Bluetooth profiles list has no LE Audio entry, and the accessory design guidelines mention neither LE Audio nor LC3. As of October 2026 that covers every iPhone model.
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AAC in, clean analog out: ES9018K2M DAC and RCA/optical outputs keep the iPhone's signal honest on your stereo.
- Apple Support, Bluetooth profiles that iOS and iPadOS support: nine profiles enumerated (HFP 1.8, PBAP 1.2, A2DP 1.4, AVRCP 1.6, PAN, HID, MAP 1.4, WiAP, Braille), each with "iPhone 5s and later" applicability; no LE Audio entry; Published Date October 31, 2023. support.apple.com/en-us/102842, accessed 2026-10-28
- Apple, Accessory Design Guidelines for Apple Devices (PDF, page footers dated 2026-09-21, 404 pages): full-text extraction contains no LE Audio, LC3, Auracast or hearing aid mention; Section 53 documents the A2DP path and its SBC codec tables; Section 57.11 points to the profiles knowledge-base article. developer.apple.com/accessories/Accessory-Design-Guidelines.pdf, accessed 2026-10-28
- Apple, iPhone 16 Technical Specifications: "Bluetooth 5.3" radio line; no Bluetooth codec enumeration; AAC appears once, in the Audio Playback formats list ("Supported formats include AAC, APAC, MP3, Apple Lossless, FLAC, Dolby Digital, Dolby Digital Plus, and Dolby Atmos"). apple.com/iphone-16/specs/, accessed 2026-10-28
- Apple, iPhone 17, iPhone Air and iPhone 18 Pro Technical Specifications: "Bluetooth 6" on all three; the same specs-page pattern, no Bluetooth codec enumeration, AAC only in the Audio Playback formats list. apple.com/iphone-17/specs/, apple.com/iphone-air/specs/, apple.com/iphone-18-pro/specs/, accessed 2026-10-28
- Apple Support, Use Made for iPhone hearing devices: "Use Made for iPhone (MFi) hearing aids to listen and talk on your iPhone, iPad, Mac, or Apple Vision Pro."; no LE Audio or LC3 mention on the page. support.apple.com/en-us/108780, accessed 2026-10-27, re-checked 2026-10-28
- Apple Support, List of Made for iPhone hearing devices: "These Made for iPhone (MFi) hearing aids are compatible with iPhone, iPad, Mac, and Apple Vision Pro devices that meet the system requirements."; bidirectional streaming marked with an asterisk. support.apple.com/en-us/106341, accessed 2026-10-28
- Apple Support, Hearing accessibility features in iOS: Live Listen "turns your iPhone, iPad, or iPod touch into a remote microphone that sends sound from your environment to your Made for iPhone hearing device, AirPods, or Beats."; no LE Audio or LC3 mention. support.apple.com/en-us/111765, accessed 2026-10-27, re-checked 2026-10-28
- Apple, iPhone User Guide, Use hearing devices with iPhone: "You can use MFi hearing aids or sound processors with iPhone and adjust their settings."; AirPods Pro 2/3 hearing test and Hearing Aid feature lines; no LE Audio mention. support.apple.com/guide/iphone/use-hearing-devices-iph470b1833/ios, accessed 2026-10-28
- Apple Accessibility page: "AirPods Pro 2 and AirPods Pro 3 offer an end-to-end hearing health experience, giving you access to a Hearing Test, a clinical-grade Hearing Aid feature, and active Hearing Protection." apple.com/accessibility/, accessed 2026-10-28
- SoundGuys, Bluetooth codec support for headphones: "iPhones only support the AAC and SBC Bluetooth codecs." soundguys.com/bluetooth-codec-support-headphones-61989/, accessed 2026-09-22. The ~256 kbps AAC operating point carries this site's AAC profile sources; Apple publishes no Bluetooth bitrate figure.