iOS 15 Siri Guide: On Device Offline Recognition and Updates

There are some major improvements to Siri in iOS 15, with Apple introducing features that iPhone users have long asked for. On devices with an A12 chip or later, ‌Siri‌ can do on-device processing and there's support for offline requests.

iOS 15 Siri Feature
This guide highlights all of the new ‌Siri‌ features that are available in iOS (and iPadOS) 15.

On-Device Speech Processing and Personalization

Starting in iOS 15, speech processing and personalization are done on-device. This makes ‌Siri‌ faster at processing requests, but also more secure. Most audio requests made of ‌Siri‌ are kept entirely on the ‌iPhone‌ and are no longer uploaded to Apple's servers for processing.

‌Siri‌'s speech recognition and understanding of commands improves as a device is used, with ‌Siri‌ learning the contacts most interacted with, new words typed, and topics preferred, with all of this information kept on device and private.

On-device speech processing and personalization is enabled through the Apple Neural Engine and it is available on iPhones and iPads that have an A12 Bionic chip or later.

On-device processing is available in German (Germany), English (Australia, Canada, India, UK, U.S.), Spanish (Spain, Mexico, U.S.), French (France), Japanese (Japan), Mandarin Chinese (China mainland), and Cantonese (Hong Kong).

Offline Support

With on-device processing now available, there are a wide range of ‌Siri‌ requests that can be handled offline. ‌Siri‌ can create (and disable) timers and alarms, launch apps, control audio playback, and access Settings options.

Apple says ‌Siri‌ can also process Messages, sharing, and Phone requests.

Sharing via Siri

When you come across something that you want to share like a photo, web page, Apple Music song, or podcast, you can ask ‌Siri‌ to send it to a friend or family member and ‌Siri‌ will do so.

siri sharing ios 15
If it's something that can't be shared, like a Messages thread, ‌Siri‌ will make a screenshot and send that. All you have to do is say "Send this to [person]" and ‌Siri‌ will confirm the request and then send it along.

siri send screenshots 1
This feature works with ‌Apple Music‌, Apple Podcasts, Apple News, Maps, web pages, photos, Messages, and more.

Improved Context Between Requests

‌Siri‌ in iOS 15 can better maintain context between voice requests. So if you ask something like "How late is the Taco Bell open?" and then "How long does it take to get there?" ‌Siri‌ will understand that "there" is the Taco Bell from the previous request.

siri contextual requests
This tends to work only when there's a single option, because in a situation with multiple Taco Bells, ‌Siri‌ needs clarification. For that reason, the contextual improvements are limited.

Contacts

‌Siri‌ also understands that if there's a contact on the screen, that's the person that you want to talk to.

So if you have the contacts app open to a specific person, are chatting with someone in Messages, get a Message notification, or miss a call, you can say something like "Message them I'm on my way" and ‌Siri‌ will know to send it to the relevant contact that you've just interacted with or have open.

ios 15 contextual messaging

HomeKit Improvements

‌Siri‌ can now be used to control a HomeKit device at a specific time. So if you want your lights to turn off right when at 7, you can say something like "Hey ‌Siri‌, turn off the bedroom lights at 7.p.m." This command also works for geolocation, so you can say things like "Hey ‌Siri‌, turn off the air conditioning when I leave."

siri ios 15 timed homekit commands
When you ask ‌Siri‌ to control a ‌HomeKit‌ product this way, it creates an automation in the Home app under the "Automation" section. If you want to delete an Automation ‌Siri‌ has created, you can do so in the Home app.

‌HomeKit‌ developers can also add ‌Siri‌ support to their products in iOS 15, but using ‌Siri‌ commands with third-party devices does require the user to have a HomePod to route requests through. With ‌Siri‌ integration, customers will be able to use their ‌HomeKit‌ products for ‌Siri‌ commands like setting reminders, controlling devices, broadcasting messages, and more.

Announce Notifications

‌Siri‌ has been able to announce calls and incoming messages when using AirPods (or Beats headphones) for some time now, but in iOS 15, that feature is expanding to all notifications.

siri announce notifications ios 15
‌Siri‌ can automatically announce Time Sensitive notifications when AirPods are connected if you toggle the feature on in the Settings app (in either the ‌Siri‌ or Notifications sections), and there are also options to have ‌Siri‌ announce notifications on an app-by-app basis if you want to hear notifications from a particular app but those notifications aren't Time Sensitive.

Announce Messages in CarPlay

There's now a feature to have ‌Siri‌ announce your incoming messages when your ‌iPhone‌ is connected to a CarPlay setup.

There's an option to turn announcements on or off when a message is read, and ‌Siri‌ will remember your preference. This feature can also be toggled on or off using the Settings app.

Announce Reminders With AirPods

In addition to notifications, ‌Siri‌ can also announced reminders that come up when wearing AirPods or compatible Beats headphones.

siri announce reminders ios 15

Add Siri Suggestions to Safari Start Page

With Start Page customization in iOS 15, there is an option to add a section for ‌Siri‌ Suggestions for websites you might want to visit or content you might want to view.

Language Improvements

Neural text-to-speech voices have expanded to Swedish, Danish, Norwegian, and Finnish in iOS 15.

Apple has also added mixed English and Indic language support. ‌Siri‌ can process commands in a mix of Indian English and native languages, with support for Hindi, Telugu, Kannada, Marathi, Tamil, Bengali, Gujarati, Malayalam, and Punjabi.

Siri for Developers

Apple is tweaking its SiriKit interface and is eliminating some of the ‌Siri‌ commands that developers were able to use with third-party apps.

Starting with iOS 15, customers will no longer be able to use ‌Siri‌ in third-party apps to do things like book a ride with Uber, make a bill payment, or create new task lists in to-do apps. Many of these ‌Siri‌ functions may be replaced by Shortcut options that can be activated with ‌Siri‌ voice commands.

Guide Feedback

Have questions about ‌Siri‌ in iOS 15, know of a feature we left out, or want to offer feedback on this guide? Send us an email here.

Related Forum: iOS 15

Popular Stories

Verizon New

Verizon is Down: iPhones Show 'SOS' Mode Due to Network Outage [Resolved]

Wednesday January 14, 2026 10:18 am PST by
Verizon is experiencing a major outage across the U.S. today, with hundreds of thousands of customers reporting issues with the network on the website Downdetector. There are also complaints across Reddit and other social media platforms. iPhone users and others with Verizon service are generally unable to make phone calls, send text messages, or use data over 5G or LTE due to the outage....
Apple Creator Studio

Apple Introduces New 'Creator Studio' Bundle of Apps for $129 Per Year

Tuesday January 13, 2026 6:11 am PST by
Apple today introduced a new Apple Creator Studio bundle that offers access to six creative apps, as well as exclusive AI features and content, as part of a single subscription. In the U.S., pricing is set at $12.99 per month or $129 per year. Here are the six apps included with an Apple Creator Studio subscription:Final Cut Pro on the Mac and iPad Logic Pro on the Mac and iPad Pixelmator...
iOS 26

Here's What's New in iOS 26.3 So Far

Monday January 12, 2026 1:15 pm PST by
Apple today seeded the second beta of iOS 26.3, nearly a month after the first beta. So far, the update includes a couple of new features for iPhones. iOS 15.3 through iOS 18.3 were all released in late January over the years, so it is thereby likely that iOS 26.3 will be released towards the end of this month as well. The update is compatible with the iPhone 11 series and newer. Below,...
maxresdefault

Apple Confirms Google Gemini Will Power Next-Generation Siri This Year

Monday January 12, 2026 7:38 am PST by
In a statement shared with CNBC today, Apple confirmed that Google Gemini will power the next-generation version of Siri that is slated to launch later this year. Subscribe to the MacRumors YouTube channel for more videos. "After careful evaluation, we determined that Google's technology provides the most capable foundation for Apple Foundation Models and we're excited about the innovative...
airpods pro 3 design

Apple Releases New AirPods Pro 3 Firmware Update

Tuesday January 13, 2026 11:29 am PST by
Apple today released a firmware update for the AirPods Pro 3. The latest firmware has a version number of 8B34, up from the previous version 8B30. Apple has a support document for AirPods firmware updates, and it indicates that the 8B34 update contains unspecified "bug fixes and other improvements." No other AirPods models received firmware updates today. How to install AirPods Pro...
Low Cost MacBook Feature A18 Pro

Apple Is Expected to Launch These Four MacBooks in 2026

Friday January 9, 2026 8:17 am PST by
2026 could be a bumper year for Apple's Mac lineup, with the company expected to announce as many as four separate MacBook launches. Rumors suggest Apple will court both ends of the consumer spectrum, with more affordable options for students and feature-rich premium lines for users that seek the highest specifications from a laptop. Subscribe to the MacRumors YouTube channel for more videos. ...
maxresdefault

Google Gemini-Powered Siri Will Reportedly Have These 7 New Features

Tuesday January 13, 2026 7:52 pm PST by
Apple and Google this week announced that Gemini will help power a more personalized Siri, and The Information has provided more details. Subscribe to the MacRumors YouTube channel for more videos. As soon as this spring, the report said the revamped version of Siri will be able to… Answer more factual/world knowledge questions in a conversational manner Tell more stories Provide...
fcp pcp iwork creator studio

Some Apple Apps Will No Longer Receive Every New Feature Without a Subscription

Tuesday January 13, 2026 10:50 am PST by
If you are not interested in subscribing to the new Apple Creator Studio bundle introduced today, you will officially start to miss out on some new features. Apple said some "exciting new intelligent features and premium content" in Pixelmator Pro, Keynote, Numbers, Pages, and Freeform will only be accessible with a Creator Studio subscription. In the U.S., a subscription costs $12.99 per...
iPhone Top Left Hole Punch Face ID Feature Purple

New Leak Reveals iPhone 18 Pro Display Sizes, Under-Screen Face ID, and More

Wednesday January 14, 2026 7:09 am PST by
While the iPhone 18 Pro models are still around nine months away, a leaker has shared some alleged details about the devices. In a post on Chinese social media platform Weibo this week, the account Digital Chat Station said the iPhone 18 Pro and iPhone 18 Pro Max will have the same 6.3-inch and 6.9-inch display sizes as the iPhone 17 Pro and iPhone 17 Pro Max. Consistent with previous...
iPhone Top Left Hole Punch Face ID Feature Purple

10 Reasons to Wait for This Year's iPhone 18 Pro

Thursday January 8, 2026 2:56 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...

Top Rated Comments

murdoc2k Avatar
58 months ago

The other day I happened to watch the keynote when it was introduced back then.


It was actually really fun and surprising to watch, to see all it was able to do back then already, and how it... hasn't really evolved in a decade.
Wow, I think you're right. In fact, it's dumber than the original version of Siri.

I think they took out the wolfram alpha api. In the demo, Scott mentioned that you can ask it how many days until your birthday and when I tried that just now, it only tells me when my birthday is but not the number of days until my birthday.
Score: 15 Votes (Like | Disagree)
dhla Avatar
58 months ago
There's one suggestion I have made before and would love to see - seems easy. If I'm sending a text via Siri to a contact, and I mention that persons name in the text, it would be great if Siri relied on the spelling of the name from the contact. For example, if I'm texting someone named "Erik" and I want to text (via Siri), "Hey Erik, did you see that reveal on last night's show?"... Siri will spell out the text as "Hey Eric, did you see that reveal on last night's show?" Would be great since in this example I'm texting a contact named "Erik" if Siri had the logic to take the spelling from the contact.
Score: 15 Votes (Like | Disagree)
PsykX Avatar
58 months ago

For better or for worse, it will be a decade this year since Siri first launched on the iPhone.
The other day I happened to watch the keynote when it was introduced back then.


It was actually really fun and surprising to watch, to see all it was able to do back then already, and how it... hasn't really evolved in a decade.
Score: 15 Votes (Like | Disagree)
poematik13 Avatar
58 months ago
The weakest product/service in apples lineup by far.
Score: 12 Votes (Like | Disagree)
DaPizzaMan Avatar
58 months ago
Honestly, this is one of the most exciting features in iOS 15. Offline Siri, improved context, and especially the "announce notifications" feature.
Score: 8 Votes (Like | Disagree)
contacos Avatar
58 months ago
Useless for me since Siri is still not able to handle more than one language at a time. You should hear my incoming messages in Spanish or English when my iPhone is set to German. It’s hilarious
Score: 6 Votes (Like | Disagree)