Google is developing Min Mode, a new Android 17 feature enabling apps to display simplified interfaces on locked screens without significant battery drain. This transforms always-on displays from passive information layers into functional application interfaces. The feature was discovered in Android Canary builds during late October 2025.[1][2][3]
Why Min Mode Changes Always-On Display Functionality
Always-on displays have existed on Android phones for years, limited to time and notifications. Min Mode represents the next evolutionary stage by enabling full-screen app interfaces while maintaining ultra-low power consumption.[2][3][1]
Key benefits include:[1][2]
- Navigation directions visible while traveling without active display battery drain.
- Transportation and delivery updates display continuously on locked screens.
- Critical information accessible without requiring phone unlock.
- Battery consumption remains at always-on display levels, not full-screen rates.
- No performance impact on smartphone main functions.
How Min Mode Technical Implementation Works
Min Mode uses standardized infrastructure built into Android 17. Apps register MinModeActivity support in their Manifest file to enable the feature. Google manages core infrastructure through Android System UI functions, standardizing implementation across manufacturers.[3][2][1]
Developer requirements include:[2][3]
- Declare MinModeActivity support in application Manifest file.
- Create specialized interfaces optimized for low-power displays.
- Limit visual elements to monochromatic or minimal-color rendering.
- Handle reduced refresh rates and minimal brightness levels.
- Implement pixel-shifting mechanisms for burn-in prevention.
Pixel-shifting technology prevents OLED burn-in by moving display content periodically, a standard technique in OLED displays. The feature maintains the same ultra-low-power state as standard always-on displays.[3][1][2]
Google Maps Demonstrates Primary Min Mode Use Case
Google Maps represents the first major application prepared for Min Mode support. In October 2025, Google tested power-saving mode in Maps beta builds displaying turn-by-turn directions in monochromatic form. The code designation com.google.android.apps.gmm.features.minmode.MinModeActivity confirms integration as part of Min Mode infrastructure.[4][2]
Expected user experience improvements:[4][2]
- Navigation directions visible on locked screen during travel.
- 60-80 percent battery consumption reduction versus full-screen navigation.
- Seamless transition between always-on and full-screen modes.
- Turn-by-turn guidance access without phone unlock interruption.
Always-On Display Evolution from Static to Dynamic
| Phase | Timeline | Capabilities | Examples |
|---|---|---|---|
| Basic always-on | Prior to 2024 | Time, notifications | Android flagships |
| Wallpaper integration | January 2024 | Simplified wallpapers | Samsung Galaxy S24[5] |
| Full app interfaces | 2025-2026 | Persistent app windows | Android 17 devices |
Apple introduced always-on display in iPhone 14 Pro (announced September 7, 2022; released September 16, 2022). Samsung followed by launching Galaxy S24 on January 17, 2024, with wallpaper display capability. Min Mode represents the next stage, enabling actual application functionality.[5][6][7][8][1]
Android 17 Timeline and Current Development Status
Google has not announced an official Android 17 release schedule or developer preview date. Current development status indicates:[1][2][3]
- Min Mode appears complete in early development form in Android Canary builds.
- Developer APIs remain incomplete and not publicly documented.
- Infrastructure supports burn-in protection and low-power operation.
- Android 16 released in May 2025 for timeline reference.[9]
Official Google specifications remain unannounced. Exact release timing depends on Android 17’s launch schedule.[1]
What Remains Unknown About Min Mode
Several details about Min Mode have not been officially confirmed:[2][3][1]
- Complete list of supported devices based on hardware specifications.
- Whether exclusive to Google Pixel or available across all Android manufacturers.
- Full technical specifications for developer APIs.
- Official performance metrics and power consumption data.
- Public release and developer preview timelines.
- Additional apps beyond Google Maps planning Min Mode support.
Developer Implications and Requirements
Min Mode support is entirely optional for application developers. Apps function normally without these features, which simply provide an additional channel for always-on display usefulness.[2][1]
Development considerations include testing on varied OLED displays for burn-in protection verification and implementing state management between display modes.[3][2]
