No multitouch, no video recording, no Bluetooth file transfer, no Wi-Fi hotspot, no on-screen keyboard (you needed the physical one). Apps couldn’t be installed to SD cards, and there was no flashlight toggle.
From a ROM development perspective, Android 1.0 ran on a modified Linux Kernel 2.6.25. The boot process was radically different from modern devices.
The official Android SDK has an Android 1.0 system image (API level 1). You can run it today: android 1.0 rom
# Install older SDK platform (use sdkmanager or download manually)
sdkmanager "platforms;android-1"
Despite its rough edges, the ROM was packed with forward-thinking features that distinguished it from the competition.
1. The Notification Bar
Perhaps Android 1.0’s most significant contribution to mobile UX was the pull-down notification shade. While iOS required users to interrupt their current task to view an alert, Android allowed users to swipe down from the top of the screen to see emails, texts, and missed calls without leaving their app. It was a stroke of genius that competitors would eventually emulate. No multitouch, no video recording, no Bluetooth file
2. Deep Google Integration
The "Google Experience" was the selling point. The ROM featured native integration with:
3. The Android Market
The Android Market (now the Google Play Store) launched alongside the OS. It was a sparse marketplace compared to the App Store, but it emphasized Google’s vision of an open ecosystem. Developers could upload apps without the stringent approval processes found elsewhere, fostering a culture of experimentation and customization that became Android’s hallmark. No other commercial device used 1
4. The Desktop-like Web Browser
Before Chrome for Android existed, the default browser was a WebKit-based application. It supported tabs (a revolutionary feature on mobile) and multi-touch pinch-to-zoom, although multi-touch was initially disabled on the US version of the G1 due to a reported exclusivity agreement between Apple and Google at the time.
Only one device officially launched with Android 1.0:
No other commercial device used 1.0; most skipped directly to 1.5 or 1.6.