Whatsapp .jar
Unlike today’s iOS or Android, which run on powerful multi-core processors, J2ME was designed for devices with:
| Feature | Modern WhatsApp | WhatsApp .jar | | :--- | :--- | :--- | | | Unlimited cloud | 2MB phone storage limit | | Connectivity | Persistent TCP socket | HTTP polling (every 30-60 seconds) | | Media | End-to-end encrypted media | Images sent as links to a web server | | Battery | Efficient push | Heavy drain due to constant polling | | Background Ops | True background | Pseudo-background (closed when pressing red button) | whatsapp .jar