top of page
  • Lawrence Ng

Apple To Fix Bugs Like Refresh Rate and Unlock With Apple Watch Issue on iPhone 13 Devices

If you haven't heard, the iPhone 13 lineup was recently launched, which included the iPhone 13 Pro and 13 Pro Max that both have new OLED displays boasting a maximum refresh rate of 120Hz. Despite this capability, developers using iPhone 13 Pro models noticed that in various instances, their in-app animations can only run at 60Hz.

Credit: Apple

With iOS 15, ProMotion — the adaptive and high refresh rate screen technology found on iPhone 13 Pro models — works in third-party apps when scrolling or doing full-screen transitions. This translates to a fluid and responsive experience when you're scrolling through apps such as social media platforms. However, nearly all other animations like special effects and animations for custom components in third-party apps are limited to 60Hz. This might disrupt users' experience if smooth scrolling is featured in one aspect of an app while there are less smooth interactions elsewhere.

Credit: Apple

Apple said that all third-party apps can benefit from 120Hz ProMotion refresh rates but developers will need to state that their apps use higher frame rates by adding an entry to their app's plist. The company is requiring the opt-in to offer higher refresh rates only to apps that will be able to take advantage of this technology, which will optimise battery life on iPhone 13 Pro and Pro Max devices.

The opt-in process is meant for apps that need full ProMotion support. Standard UI animations in all third-party apps automatically work with ProMotion.

Another bug, which is affecting some animations built using the Core Animation framework, will be fixed in an upcoming software update.

Credit: Apple

Aside from that, Apple identified an issue with the "unlock with Apple Watch" feature on iPhone 13 devices. Specifically, users might get a message that reads: "Unable to Communicate with Apple Watch" when attempting to unlock their iPhone while wearing a face mask. They might face problems with configuring Unlock with Apple Watch as well.

Information on the cause of this problem has not been released but Apple said that the issue will be addressed in an upcoming software update without sharing any details on when the fix will be rolled out. As of now, users are advised to switch off the "unlock with Apple Watch" feature and unlock their iPhone 13 with their passcode instead.

Speaking of bugs, a new issue preventing Siri from sending or reading aloud emails on iOS 14 and iOS 15 has surfaced. Apple acknowledged the concern and told users to visit its accessibility page for help. To solve this problem, a support page stated that users need to set up "Hey Siri" to help Siri recognize their voice.


Written by Sophia Lopez


As technology advances and has a greater impact on our lives than ever before, being informed is the only way to keep up.  Through our product reviews and news articles, we want to be able to aid our readers in doing so. All of our reviews are carefully written, offer unique insights and critiques, and provide trustworthy recommendations. Our news stories are sourced from trustworthy sources, fact-checked by our team, and presented with the help of AI to make them easier to comprehend for our readers. If you notice any errors in our product reviews or news stories, please email us at  Your input will be important in ensuring that our articles are accurate for all of our readers.

bottom of page