Ecosystem: Apple's Watch complements its iOS ecosystem, making it optimized for Apple devices.
Software Integration: Deep integration with iOS features limits cross-compatibility with Android phones.
Proprietary Technology: Apple's exclusive features, like iMessage, aren't available on Android, restricting functionality.
Business Strategy: Apple aims to retain its user base and ecosystem by keeping the Watch exclusive.
Hardware and Software: Hardware components and watchOS are tailored to Apple's own devices, limiting compatibility.