Bluetooth 4.0
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Max Speed
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Max Resolution
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Power Delivery
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Released
2010
Introduced Bluetooth Low Energy (BLE) alongside Classic BT. The foundational version for fitness trackers, beacons, and IoT devices with months-long battery life.
Capabilities
Data
✓
Video
✗
Audio
✓
Power
✗
Ethernet
✗
Future-Proof Analysis
BLE remains foundational but BT 5.0+ dramatically improved range, speed, and broadcast capabilities.