Apple Seeds iOS 8.2 With WatchKit SDK for Apple Watch Apps to Developers

Apple today announced that its set of WatchKit development tools are now available for developers, allowing them to begin creating apps and software for the company's upcoming Apple Watch.

"Apple Watch is our most personal device ever, and WatchKit provides the incredible iOS developer community with the tools they need to create exciting new experiences right on your wrist," said Philip Schiller, Apple's senior vice president of Worldwide Marketing. "With the iOS 8.2 beta SDK, developers can now start using WatchKit to create breakthrough new apps, Glances and actionable notifications designed for the innovative Apple Watch interface and work with new technologies such as Force Touch, Digital Crown and Taptic Engine."

WatchKit is being released as part of the iOS 8.2 and Xcode 6.2 beta, both of which have been made available to developers today.

ios_8_2_beta_crop
Both the iOS 8.2 Beta with WatchKit and the Xcode 6.2 beta can be downloaded from Apple's developer site, which also has Apple Watch development resources for developers. WatchKit can currently be used to create Glances, actionable notifications, and Apple Watch apps that are powered by the iPhone. Many Apple Watch apps will be driven by code that runs on the iPhone, with a UI that displays content on the watch itself. According to Apple, "fully native" Apple Watch apps can be created "later next year."

As described by Apple, actionable notifications are notifications that allow users to take an action or respond directly from their wrists with the Apple Watch, turning off the lights when they've left the house, for example, or accessing flight information at an airport. Glances are somewhat simpler, aiming to give users quick information at a glance like news, weather, sports scores, and more.

watchkitapptypes
In its press release, Apple highlights several developers who have already begun working with WatchKit, giving some additional insight into how the WatchKit tools can be used. The ESPN app for Apple Watch delivers live scores and information on teams, according to ESPN VP John Kosner, and it offers snapshots of live games through Glances and alerts on score changes through actionable notifications.

Instagram has used WatchKit to develop actionable notifications that let users instantly like a photo or respond with an emoji, plus there's an Instagram news and watch list to let users see their friends favorite photos and get an overview of likes and comments. American Airlines has used Apple Watch to create pre-trip notifications, updates for gate changes, gate connection information, and alerts when a flight begins boarding, all of which can be accessed directly from the wrist.

In addition to sharing these use cases for the Apple Watch, Apple has also created a dedicated Apple Watch site for developers, outlining the difference between full apps, Glances, and actionable notifications, offering download links to the iOS 8.2 beta with WatchKit SDK, and providing design guidelines and templates.

watchkit
Apple has said that its Apple Watch will be released in "early 2015," but an exact launch date remains unclear. At the lower end, the device will retail for $349, with estimates placing pricing for the higher-end solid gold version at thousands of dollars.

Related Roundup: Apple Watch 11
Tag: iOS 8.2
Buyer's Guide: Apple Watch (Buy Now)
Related Forum: iOS 8

Popular Stories

ios 26 1 slide to stop

iOS 26.1 Brings Back 2007 Feature in New Way

Friday October 31, 2025 1:40 pm PDT by
The upcoming iOS 26.1 update includes a small but helpful change for iPhones, and it could prevent you from running late to something important. Specifically, when an alarm goes off in the Clock app, there is a new "slide to stop" control on the screen for turning off the alarm. On previous iOS 26 versions, there is simply a large "stop" button, which could be accidentally tapped. The new ...
M5 MacBook Pro

Waiting for New Macs? Apple Just Shared Bad News

Friday October 31, 2025 7:32 am PDT by
Apple has just given a strong indication that it will not be releasing any additional new Macs for the remainder of the year. Apple's CFO Kevan Parekh dropped the hint during the company's earnings call on Thursday:On Mac, keep in mind, we expect to face a very difficult compare against the M4 MacBook Pro, Mac mini, and iMac launches in the year-ago quarter.Parekh essentially gave a heads up ...
iPhone 17 Pro Cosmic Orange

8 Reasons to Wait for Next Year's iPhone 18 Pro

Thursday October 30, 2025 4:42 am PDT 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...
iOS 26

6 New Things Your iPhone Can Do in iOS 26.1

Wednesday October 29, 2025 4:22 am PDT by
Apple is about to drop iOS 26.1, the first major point release since iOS 26 was rolled out in September, and there are at least six notable changes and improvements to look forward to. We've rounded them up below. Apple has already provided developers and public beta testers with the release candidate version of iOS 26.1, which means Apple will likely roll out the update to all compatible...
Coffee Burgundy and Purple iPhone 18 Pro Mock 1

Leaker Outlines Potential New Colors for iPhone 18 Pro

Friday October 31, 2025 8:28 am PDT by
Apple's iPhone 18 Pro models could be available in new rich and warm color option, according to a known leaker. The Weibo user known as "Instant Digital" today suggested that next-year's iPhone 18 Pro models will be available in at least one of the following color options: Coffee, purple, and burgundy. The iPhone XR, iPhone 11, iPhone 12, iPhone 14, and iPhone 14 Pro were all available in ...
Apple Foldable Thumb

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Friday October 31, 2025 8:52 am PDT by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Below, we've collated an updated set of key details that have been leaked about Apple's foldable iPhone so far. Ove...
apple tv hd

Apple Launched Its Big New Vision for TV 10 Years Ago Today

Thursday October 30, 2025 8:58 am PDT by
Apple launched the Apple TV HD, the Siri Remote, tvOS, and their accompanying App Store a decade ago today, marking a major overhaul of the device. The new vision for the Apple TV was unveiled on September 9, 2015 during Apple's "Hey Siri" event in San Francisco, where CEO Tim Cook introduced the device with the statement, "The future of TV is apps." The announcement represented a major...
iOS 26

Apple This November: iOS 26.2 Beta, Rumored New Products, and More

Thursday October 30, 2025 12:42 pm PDT by
Tomorrow is Halloween, and then November is upon us. Below, we outline what to expect from Apple next month, as the slower holiday season approaches. Apple is expected to kick off November by releasing iOS 26.1, iPadOS 26.1, macOS 26.1, watchOS 26.1, tvOS 26.1, and visionOS 26.1. With beta testing now wrapped up, the updates will likely be released this Monday, November 3 or Tuesday,...
iOS 26

iOS 26.1 Coming Soon: New Features for Your iPhone and Release Date

Monday October 27, 2025 7:55 am PDT by
The upcoming iOS 26.1 update includes a handful of new features and changes for iPhones, including a toggle for changing the appearance of the Liquid Glass design, "slide to stop" for alarms in the Clock app, and more. Below, we outline key details about iOS 26.1. Release Date Given that Apple has yet to seed an iOS 26.1 Release Candidate, which is typically the final beta version, the...
iOS 18 Siri Personal Context

Apple CEO Tim Cook Says Revamped Siri on Track to Launch Next Year

Thursday October 30, 2025 1:50 pm PDT by
Apple CEO Tim Cook today said that a more personalized version of Siri remains on track to launch at some point next year, with the new set of features expected to debut on the iPhone as part of iOS 26.4 in March or April. "We're also excited for a more personalized Siri," said Cook, on Apple's earnings call for the third quarter of the 2025 calendar year. "We're making good progress on it,...

Top Rated Comments

troop231 Avatar
143 months ago
Hopefully this will tell us what resolution and PPI is on the Apple Watch.
I just confirmed the 38mm watch UI size is 136w x 170h and the 42mm watch UI size is 156w x 195h.

Those are in points by the way, so the native resolution will be 2x most likely:
38mm: 272w x 340h Px
42mm: 312w x 390h Px

Edit: Confirmed 2x will indeed be used: "Create all of your image resources as @2x images. There is no need to include non @2x resources in your Watch app bundle."

Score: 15 Votes (Like | Disagree)
Dwalls90 Avatar
143 months ago
Perfect.

@PanguTeam can start ripping it apart looking for exploits.
Score: 7 Votes (Like | Disagree)
BlaqkAudio Avatar
143 months ago
Does it mean that it is retina?

At 2x, the 38 mm is 582.08 PPI and the 42 mm is 604.09 PPI.
Score: 5 Votes (Like | Disagree)
cmChimera Avatar
143 months ago
"Starting later next year, developers will be able to create fully native apps for Apple Watch."

Later next year?
Score: 4 Votes (Like | Disagree)
troop231 Avatar
143 months ago
As I said, the pixel dimensions are 312x390, the point dimensions are 156x195 (for the larger size of course). This is running in the simulator with Xcode 6.2. Their catalog app uses the following code to output the image I posted earlier.


CGRect bounds = [[WKInterfaceDevice currentDevice] screenBounds];
CGFloat scale = [[WKInterfaceDevice currentDevice] screenScale];

Yes I know, and I also said I updated my post to show the correct values.
Score: 3 Votes (Like | Disagree)
troop231 Avatar
143 months ago
I have the simulator running right now and it's reporting a screen bounds of 156x195 with scale of 2x.

http://imgur.com/rwN6lrS
I got my information from Apple's Photoshop files they released today. That would make the resolution half then of what those documents show. I edited my original post to show the correct values then.
Score: 3 Votes (Like | Disagree)