Lifestyle v1.7.52
Does SmartThings work on iPhone Duo?
It works, but with black bars. SmartThings 1.7.52 is built with the iOS 26.5 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
At a glance
- Inner display (7.6″)
- Black bars
- Outer display (5.4″)
- Works normally
- Built with
- iOS 26.5 SDK
- Version 1.7.52, read Oct 25, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v1.7.52
- Oct 14, 2026
- Duo in release notes
- Not yet
About SmartThings
SmartThings is made by Samsung Electronics Co., Ltd. and first came out on the App Store in June 2017. It has 856,628 ratings on the US App Store, averaging 4.6 stars. Version 1.7.52 came out on Oct 14, 2026 and needs iOS 17.0 or later. It's free to download. Among the 30 utilities & lifestyle apps we track on the US App Store, 9 already fill the inner display, 3 are partly adapted and 18 still show black bars. By number of ratings, SmartThings is #15 of them.
From its App Store listing:
Quickly and easily connect and control your smart home devices through SmartThings. SmartThings is compatible with 100s of smart home brands. So, you can control all of your smart home gadgets in one place, including your Samsung Smart TV and smart home appliances. With SmartThings, you can connect, monitor and control multiple smart home devices quicker and easier. Connect your Samsung smart TVs,…
On the inner display
Apps built with older SDKs are placed in a phone-sized safe area on a black background. Everything works; you just don't get the bigger screen.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including SmartThings. Open it on the inner display, then add a second app next to it. You can save the pair and come back to it later.
Duo-specific features
None confirmed yet. Duo-specific features include side toolbars, layouts that react to the fold, and content on the outer display while the app is open inside.
Evidence & history
App build,
Version 1.7.52 is built with the iOS 26.5 SDK
Apple runs apps built with the iOS 26 SDK or earlier in a phone-sized window on the inner display.
- : Not confirmed yet → Black bars — built with the iOS 26.5 SDK
Latest release notes
Version 1.7.52 · Oct 14, 2026
SmartThings is getting even better. - Redesigned Home tab: View and access your frequently used features and essential information right from the Home screen. - Faster control of devices connected to a hub: Control devices connected to your hub more quickly when your phone and hub are on the same Wi-Fi network. - Routine Insights: See your top 3 most frequently used Routines and their recent activity.
Questions
Does SmartThings work on iPhone Duo?
It works, but with black bars. SmartThings 1.7.52 is built with the iOS 26.5 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does SmartThings work on the outer display?
Yes. iPhone Duo's 5.4-inch outer display behaves like a regular iPhone screen, so every iPhone app works there as usual.
Can I use SmartThings in Split View on iPhone Duo?
Yes. On iPhone Duo every app can be placed side by side with another app on the inner display — developers don't need to opt in. How comfortable it feels at half width depends on the app's layout.
Why does SmartThings have black bars on iPhone Duo?
Apps built with the iOS 26 SDK or earlier run in a phone-sized window on the inner display, and iOS 27 builds can still leave some space empty. The bars disappear once the developer rebuilds the app with the iOS 27.1 SDK — you only need to update the app.
When will SmartThings fill iPhone Duo's inner display?
When its developer releases an update built with the iOS 27.1 SDK or later. We read the SDK of every new version of SmartThings within about a day of its release and update this page.
What can I do about the black bars until then?
Use SmartThings on the outer display, where it works like on any iPhone, or put it in Split View next to another app on the inner display so less of the screen goes unused.