I/O 2019
41 announcements tracked. Reality Score: 45% shipped substantially as promised.
Shipped 14
3D AR objects/animals in Google Search
Place 3D models (animals, planets, anatomy) into your real environment via AR from Search Knowledge Panels.
Launched May 31, 2019, and went viral during COVID lockdowns in 2020 as families placed virtual tigers in their living rooms. Still works on ARCore/ARKit devices but has been deprioritised since.
AI flood forecasting (India expansion)
Expand AI flood forecasting in India to cover 90% of the country, predicting timing, location and severity for hundreds of millions.
Expanded to all of India and Bangladesh in 2020, then to 18 more countries in 2022. As of late 2024, Flood Hub covers 100 countries and ~700 million people. One of Google's quiet long-running successes from I/O 2019.
Android Auto redesign (in-car)
Ground-up redesign with dark theme, dynamic navigation bar, faster startup; rolling out summer 2019.
Began rolling out in July 2019 broadly on schedule. Remains the active Android Auto design on millions of vehicles.
Android Q / Android 10
New OS with system-wide Dark Theme, gesture navigation, Live Caption, Focus Mode, Smart Reply in all apps, foldable and 5G support, plus reworked privacy controls.
Shipped as Android 10 on September 3, 2019, on time and broadly as promised.
Auto-delete for Location History & Web/App Activity
User-set automatic deletion of Location History and Web & App Activity every 3 or 18 months.
Rolled out in June 2019, on time. Default for new accounts changed to auto-delete in June 2020. Still in place.
Federated Learning
Privacy-preserving ML technique that trains models across millions of devices without sending raw data to Google; powering Gboard predictions and more.
Real, deployed, and expanded. By 2023 all Gboard next-word-prediction models in 7+ languages and 15+ countries are trained with federated learning + formal differential privacy guarantees. Now a published research foundation used across Google's on-device AI stack.
Genuine technical success with limited consumer awareness.
Google AI Impact Challenge ($25M)
$25M grant pool plus Cloud credits and accelerator support for 20 nonprofit AI-for-good projects.
Grants were distributed in 2019 to the 20 named grantees. Several projects shipped meaningful tools through 2020–2022. Google.org has continued the model with subsequent AI Impact Challenges.
Google Lens Read Aloud in Google Go
Lens in the lightweight Google Go app reads printed text out loud, highlighting each word, with translation, aimed at low-literacy users in emerging markets. 14 launch languages.
Launched in Google Go in September 2019 and remains available. The feature is broadly considered a quiet success in accessibility/literacy contexts.
Google Maps Incognito Mode
Browse Maps and navigate without searches or destinations being saved to your Google account.
Launched on Android in October 2019, iOS in early 2020 — on Google's promised timeline. Still available.
In-App Updates API (Google Play)
API letting developers prompt or force app updates from inside the app, without leaving for the Play Store.
Reached general availability at I/O 2019 as part of Play Core 1.5.0+. Widely adopted; reported ~50% acceptance rate among early adopters. Still in use via Play Integrity / Play Core.
Kotlin-first for Android development
Google declares Android development 'Kotlin-first' — docs, samples and new APIs designed for Kotlin first, with Java still supported.
By 2022 Google reported >95% of the top 1,000 Android apps used Kotlin. Jetpack libraries, Compose and Android Studio all Kotlin-first as promised. One of the most successful platform bets of the I/O 2019 era.
Pixel 3a / Pixel 3a XL
Affordable Pixel phones at $399/$479 with flagship Pixel camera features (Night Sight, HDR+), Snapdragon 670, 3.5mm jack and 3 years of updates.
Launched on schedule on May 7, 2019. Became a major commercial hit — Pixel unit sales more than doubled in Q2 2019. Final security update arrived in July 2022, ending support roughly on the promised 3-year window.
Considered the most successful Pixel of the era.
Project Mainline (modular OS updates)
Update core Android OS components via Google Play, without full OTA, to ship security and feature fixes faster across the ecosystem.
Shipped with Android 10 (12 modules) in September 2019 and has grown to 37+ modules by Android 14. Backported features like the Photo Picker to older Android versions. Widely considered one of Android's biggest structural wins.
Wear OS Tiles
Swipe-accessible 'tiles' for info like weather, goals, heart rate, calendar on Wear OS smartwatches.
Started rolling out the week of I/O 2019 via server-side update. The 5-tile cap was lifted in 2020, third-party Tiles API arrived later, and Tiles are central to the Wear OS 3+/Pixel Watch experience.
Shipped late 4
Android Automotive OS (vehicle infotainment)
New OS platform built directly into car infotainment systems (separate from Android Auto), with Google Maps, Assistant and Play Store built in.
Polestar 2 became the first AAOS car in mid-2020 (~12 months past the implied timing). Volvo, GM, Renault, Honda, Ford and many others have since shipped AAOS in production vehicles. Active and growing platform.
First-ship slipped past 12 months of the I/O reveal.
Flutter for Web (technical preview)
Initial technical preview of Flutter for the web, extending the mobile UI framework to browsers.
Hit stable as part of Flutter 2 on March 3, 2021, ~22 months later. Adoption for web has remained modest compared to Flutter mobile, and Flutter itself has seen reduced Google investment with team layoffs in 2024.
Stable arrived ~22 months late; Flutter team since downsized.
Jetpack Compose (preview)
Open-sourced early preview of Jetpack Compose, a new Kotlin-first declarative UI toolkit for Android.
Alpha August 2020, Beta February 2021, stable 1.0 on July 28, 2021 — ~26 months from preview to stable. Now Google's recommended UI toolkit for new Android apps and broadly adopted.
Stable arrived >2 years after preview reveal.
Local Home SDK
Developer toolkit letting smart home devices respond locally via Assistant speakers/displays instead of round-tripping to the cloud.
Developer preview at I/O 2019; reached general availability April 6, 2020 — ~11 months late. Still in use as part of the Google Home developer platform, but tied to Assistant.
GA slipped ~11 months; future tied to Assistant transition.
Scaled back 12
'Works with Google Assistant' unified platform
Single 'Works with Google Assistant' developer platform for third-party smart home devices, replacing the older Works with Nest program.
Works with Nest was retired on August 31, 2019 as planned, replaced by Works with Google Assistant. The platform was further consolidated via the Matter standard and the unified Google Home APIs. With Assistant itself being sunset for Gemini, the 'Works with Google Assistant' brand is on borrowed time.
Tied to Assistant brand which is being sunset.
Android phone as built-in security key
Any Android 7.0+ phone can act as a FIDO hardware security key for two-step verification on Bluetooth-enabled computers.
Rolled out worldwide in April–May 2019 on schedule. Largely superseded by Google's broader passkey rollout from 2022 onward; the original Bluetooth flow has been deprioritised in favour of passkeys.
Original flow eclipsed by passkeys; same goal, different mechanism.
AR shoe/product try-on in Search
Try on shoes (starting with New Balance) and other products virtually via AR directly in Google Search results.
The generic AR product preview ('View in your space') shipped through 2019–2020. Genuine virtual shoe try-on, where you see the shoe on your own foot, didn't actually launch as a Google product until 2024–2025 via AI-based 'Virtual Try-On' in Shopping — and it's a different technology stack, not the AR demo from 2019.
Static 'view in space' shipped; true on-foot AR try-on as demoed never materialised.
ARCore Augmented Faces + Scene Viewer
Updates to ARCore including Augmented Faces (face filters/masks on iOS + Android) and Scene Viewer for 3D models on the web.
Shipped through 2019. Augmented Faces, Cloud Anchors and Scene Viewer all still part of ARCore, though usage has plateaued and Google has dramatically reduced AR investment since.
Shipped as promised, but the broader AR push has been quietly abandoned.
Focus Mode (Digital Wellbeing)
Selectively pause distracting apps to minimise distractions; part of Digital Wellbeing.
Entered beta in August 2019 with Android 10 and went stable in December 2019. Still technically present, but Google has heavily deprioritised Digital Wellbeing marketing and feature development, and many users don't know it exists.
Shipped, but Digital Wellbeing line broadly neglected.
Full Coverage in Google Search
Bring News-style 'Full Coverage' (timelines, multiple perspectives, key people) to general Google Search results.
Slow rollout. Full Coverage appeared in Search on mobile in March 2021, almost two years late. It technically exists but has been almost entirely subsumed by AI Overviews / AI Mode and rarely surfaces as a distinct feature.
Shipped ~22 months late and now subsumed by AI Overviews.
Google Lens dining + 100-language translation
Lens highlights popular dishes on restaurant menus, splits receipts, and translates text in 100+ languages in real-time AR overlay.
Both rolled out starting May 28, 2019, just weeks after the keynote. Translation remains a heavily used Lens feature. The dining/menu highlight feature still technically exists but has been heavily deprioritised in favour of Lens shopping and Circle to Search.
Translation thrives; dining/menu features deprioritised.
Google Maps AR walking navigation (Live View)
AR walking directions overlaid on the real world via your phone camera, broadly available on ARCore/ARKit phones with Street View.
Beta launched to Pixel and Local Guides first, then rolled out broadly to ARCore/ARKit devices in August 2019. Improved with landmark recognition in 2020 and indoor Live View in 2021. Indoor Live View was sunset in select venues in 2024. Outdoor walking Live View remains but is rarely used.
Indoor Live View partially discontinued; outdoor feature deprioritised.
Google Nest umbrella rebrand
All Home, Chromecast and Wifi products to be marketed under a unified 'Google Nest' brand; Nest Hub price drops.
Rebrand executed through 2019–2020. Nest Wifi shipped November 2019. The Nest sub-brand remains, but Google has more recently re-emphasised 'Google' branding (Pixel Tablet/Speaker), making the unification never fully delivered.
Branding never fully unified across all home hardware.
Live Caption (on-device subtitles)
On-device automatic captioning for any audio/video on Android phones, working offline across any app.
Launched October 2019 as a Pixel 4 exclusive, expanded to Pixel 3/3a in December 2019, then partially to non-Pixel Android devices over 2020–2021. The keynote framed it as a core Android feature; in practice it remains best on Pixel and inconsistent across OEMs.
Pitched as core Android, in practice a Pixel-first feature.
Nest Hub Max
10-inch smart display at $229 with built-in camera, Face Match on-device facial recognition, Duo video calling, gesture control and louder speakers; shipping 'this summer.'
Released on September 9, 2019, missing the promised summer window by a few weeks. Face Match shipped as advertised, on-device. The product is still sold, but no successor has appeared and Duo was killed/rebranded to Meet, removing a flagship feature.
Duo video calling pillar was killed; no successor product.
Project Diva
Research project letting people with disabilities trigger Google Assistant commands non-verbally via external buttons, RFID tags, etc.
Project itself remained an internal/experimental effort. Its ideas were productised in 2020 as 'Action Blocks,' which lets users put Assistant shortcuts on the home screen as large tappable tiles. Action Blocks is still available but barely promoted, hasn't been meaningfully updated, and is tied to Assistant which is being sunset.
Only Action Blocks remained, and it's tied to the dying Assistant.
In progress 1
Project Euphonia
AI research to recognise speech from people with ALS, stroke and other speech impairments, with the goal of making Assistant and dictation accessible to them.
Continues as active research. Expanded to multilingual data collection (Spanish, French, Japanese, Hindi, several Ghanaian languages) by 2024–2025 and contributed to the UIUC Speech Accessibility Project. Open-source toolkit released. Seven years later it remains a research program, not a consumer product.
Real ongoing research with public progress, but never became a consumer product.
Vapor 1
Live Relay
Phone listens and speaks on behalf of deaf/hard-of-hearing users during regular phone calls; user types, phone speaks, all on-device.
Demoed at I/O 2019 as a research project. Never shipped as a standalone product. Some underlying tech surfaced years later in Pixel's Call Assist / Call Screen features, but Live Relay as announced was never released to users.
Always framed as research, but headlined as if shipping soon.
Killed 9
Duplex on the Web
AI agent that navigates websites for you to complete tasks like renting a car or buying movie tickets, auto-filling forms from Gmail/Calendar.
Limited rollout starting late 2019 on Pixel, then expanded to password changes and checkouts. Google announced the shutdown of Duplex on the Web in December 2022, citing a focus on voice-based Duplex and AI.
Duplex voice (restaurant calls) expansion
Expanded rollout of Duplex AI making restaurant reservation phone calls on the user's behalf — promoted as a flagship Assistant capability and rolling out across the US.
Slowly expanded to ~49 US states and Pixel/Android via Google Assistant. Use cases were progressively narrowed (no longer reservations in many regions, focused on holiday-hours updates). With Google Assistant being sunset for Gemini in 2026, Duplex voice has been deprioritised and largely retired.
Retired alongside the broader Assistant sunset.
Google Assistant Driving Mode
Say 'Hey Google, let's drive' to launch a phone dashboard with navigation, calls, messages and media — promised for summer 2019.
Missed the 2019 launch by more than a year. A limited preview rolled out in November 2020, and the full homescreen/dashboard didn't arrive until September 2021. Google then stripped out Google Maps integration in 2022 and effectively wound the feature down — by 2024–2025 it had been removed from Maps entirely, and Assistant itself is being sunset for Gemini.
Shipped ~18 months late, then quietly killed.
Google Assistant Interpreter Mode
Real-time spoken translation on Google smart speakers, displays and phones across 27+ languages — 'Hey Google, be my Italian interpreter.'
Launched on Nest/Home devices in late 2019, expanded to Android/iOS phones in December 2019. The feature still nominally exists, but with Assistant being replaced by Gemini in 2025–2026, Interpreter Mode is being absorbed into Gemini Live's translation features rather than maintained as a distinct product.
Folded into Gemini Live as Assistant sunsets.
Google Stadia
Cloud gaming platform streaming AAA games at up to 4K/60fps from Google data centres to any screen, launching November 2019 with Pro subscriptions and an a-la-carte game store.
Shipped November 19, 2019 to a brutal reception: 12 launch games, missing features, controller cable required on PC/mobile. Google shut down its in-house game studios in February 2021, then announced consumer Stadia would shut down on January 18, 2023, refunding all purchases.
The poster child for Google killing products.
Next-Generation Google Assistant (on-device, 10x faster)
Voice models compressed from 100GB to 500MB to run on-device, delivering 'up to 10x faster' answers; arriving 'first on Pixel 4' later in 2019.
Shipped on the Pixel 4 in October 2019, but only in US English. Rollout to other Pixels and other regions was extremely slow and many promised cross-app multi-step demos never worked at I/O quality. By 2024 Google began replacing Assistant entirely with Gemini, and the Assistant product line is being sunset in 2026.
Superseded by Gemini; entire Assistant product line being sunset.
Playable podcasts in Google Search
Podcast episodes indexed and playable directly inside Google Search results.
Launched within days of the keynote in May 2019. However, Google wound down the playable-in-search feature in February 2023 as it shut down the Google Podcasts app and pushed users to YouTube Music.
Privacy Sandbox (Chrome) — initial proposal
Set of open web standards to enhance privacy in Chrome, intended to phase out third-party cookies and provide new privacy-preserving ad APIs.
Original 2022 cookie deprecation target slipped repeatedly. In July 2024 Google abandoned the plan to phase out third-party cookies, and in October 2025 it officially ended the Privacy Sandbox initiative after six years.
Some APIs (Topics, FLEDGE/Protected Audience) shipped but the strategic goal was abandoned.
Smart Reply in all messaging apps
OS-level Smart Reply suggestions and contextual actions across any messaging app on Android Q.
Shipped with Android 10 in September 2019. Functioned across apps as promised; in 2024–2025 contextual notification suggestions have been progressively replaced by Gemini-powered Magic Compose / Notification Summaries, and the original OS-level Smart Reply has been deprecated.
Replaced by Gemini-powered alternatives.