
For audiobooks lovers, it's perfect to have an Apple Watch to listen to Audible audiobooks directly from the wrist offline without an iPhone device. All you need is the Audible app for watchOS and an Audible account with subscription, then you can manage the Audible contents well in the LIBRARY for later syncing to Apple Watch.
However, receiving reports with the Audible not syncing to Apple Watch issue from iPhone users, we'd like to focus more on this issue at hand.
Simple Guide: How to Sync Audible to Apple Watch
Using the Audible app to sync Audible to Apple Watch from iPhone device should be a familiar process, but issues can come up if some precautions have been missed before syncing.
There are some precautions before the syncing process:
- 1. Make sure the paired iPhone and Apple Watch have at least 50% or more of charge.
- 2. Make sure the paired iPhone and Apple Watch are connected to the same Wi-Fi network connection.
- 3. Make sure the paired iPhone and Apple Watch are up-to-date, as well as the Audible apps.
- 4. Make sure the Bluetooth has been disconnected from the iPhone's Settings section. Here's what we're running: iPhone - iOS 13; Watch OS - 6; Audible app version - 3.10.3;
- 5. Make sure the Audible audiobooks to sync to Apple Watch are split into small chapters or in a small file size to ensure a smooth syncing.
Please make sure to add Audible books to Apple Watch from Audible app > Library > More button > Sync to Apple Watch or see the detailed instruction in this post:
Wait while the Audible is syncing to Apple Watch with all the titles from iPhone, which is a 20-25 minutes process. Once the syncing completes with success, it's up to users to pair the Apple Watch with a headphone via Bluetooth to listen to synced titles in the Audible app offline without an iPhone.
However, if the Audible book won't sync to Apple Watch, keep reading on to see how this Audible not syncing to Apple Watch can be fixed with more troubleshooting steps.
Troubleshooting Steps: How to Fix Audible Book Won't Sync to Apple Watch
While the Audile's Development or Support Teams is handing this Audible not syncing to Apple Watch, we've collected some possible fixes based on the reports from Audible users.
Note: For starters, make sure the devices and apps have been set up for syncing process above.
1.1 Causes to Audible Not Syncing to Apple Watch
In our experience, the Audible not syncing to Apple Watch issue comes up when the content to sync has a large file size. If a redownload is possible with an active Audible membership, please redownload the books into small chapters or in parts from audible.com to sync one file/content at a time. In our test, this prove to be the most useful fix when Audible won't sync to Apple Watch.
1.2 Redownload Audible Contents in Parts
Since there're various Audible contents in the Audible app to sync to Apple Watch, we'd like to keep these contents including audiobooks and podcasts separated to download into smaller parts.
To download Audible Audiobooks in chapters:
On desktop to download Audible audiobooks in chapters: go to audible.com > Library > Download or use the AudibleSync app > Settings > Download by parts.
On mobile to download audible audiobooks in chapters: open the Audible app for Android > Settings > Download Settings > Multi-Part Downloads or open the Audible app for iOS > My Library > Settings > Content Settings > Download by Parts > Multi-Part icon.
To download Audible Podcasts in parts:
On mobile to download Audible podcasts in parts: use the Audible app for Android > Menu > Browse > Podcasts > View all episodes > Download or use the Audible app for iOS > v > Podcasts > View all episodes > Download episode.
1.3 Split Downloaded Audible AA/AAX Files in Parts
If a redownload is not to prefer, or there're an Audible audiobook collection in AA/AAX formats, you can use a edit-supported tier to split the downloaded Audible AA/AA files in parts. From here we'd like to recommend using ViWizard Audible Converter to split them with more options like No split, Split every, Split into and Split by chapters. All you need to do is to add the AA/AAX files to ViWizard and use this tool!
Once the Audible contents have been downloaded or split into smaller parts with success, feel free to repeat the steps to sync Audible to Apple Watch, then play Audible on Apple Watch - however in a smoother progress. This is how the Audile not syncing to Apple Watch issue has been fixed!
Immediate Fix: How to Add Audible Book to Apple Watch as MP3s
If Audible won't sync to Apple Watch with all the steps here, then we'd like to introduce another method to fix this Audible not syncing to Apple Watch issue - add Audible book to Apple Watch as MP3s!
As it stands now, the MP3s are compatible with the Apple Watch to listen to. While converting the Audible AA/AAX files is the most difficult part for most Audible users with this issue, an additional Audible to Apple Watch converter - like ViWizard Audible AAX Converter can finish the task for you!
More than the added edit-supported tier in ViWizard to split Audible audiobooks into parts, this software can convert the AA/AAX files into MP3s at the same time. Once there's a converted Audible audiobooks collection in MP3, it's simple to add them to your Apple Watch - with no more issues.

ViWizard Audible Audiobook Converter Key Features
- Losslessly convert Audible books to MP3 without account authorization
- Convert Audible audiobooks to common formats at 100× faster speed
- Freely customize the output audio parameters such as sample rate
- Split audiobooks into small segments by time frame or by chapters
3.1 Convert Downloaded Audible AA/AAX Files in MP3s
On desktop to download ViWizard Audible Converter: click the Download button here for Windows or Mac, then use the ViWizard Audible Converter > Add Files button > AA/AAX files > Open.
Once the AA/AAX files are added to ViWizard, please set the output format as MP3: Format > Format: MP3 > OK. Back to the ViWizard, also make full use of the edit-supported tool here: Edit > Split > Split every , Split into or Split by chapters > OK. To start the conversion, click the Convert.
1.2 Sync Converted Audible MP3s to Apple Watch
Once the conversion is complete, go to the Converted menu in ViWizard to see all the converted files, then connect the iPhone to the computer to transfer the MP3s to it via iTunes. After the transfer, disconnect the iPhone with the computer, then open the Watch app to go to Music > Synced Music. Repeat the steps to sync the Audible to Apple Watch with the MP3s, now there won't be Audible not syncing to Apple Watch issue.
- How to Sync Audible Audiobooks to the Books App on Mac/iPhone/iPad/iPod
- How to Play iTunes Audiobooks on Apple Watch
- How to Listen to Audible on Samsung Gear S3
- How to Play Audible Audiobooks on Fitbit Ionic
- Solved: How to Sync Audible across Devices
- How to Fix Audible Not Syncing across Devices
- Complete Guide to Listen to Audible to A Bluetooth-Enabled Device

Adam Gorden is an experienced writer of ViWizard who is obsessed about tech, movie and software.