• Bluetooth is supported by every iPad. Bluetooth 5 is supported by recent models and is backward compatible with prior Bluetooth versions. As a result, the iPad can access many of the same wireless networks. Bluetooth is a short-range wireless communication system comparable to Wi-Fi, however it differs in that it is securely secured. Bluetooth devices must be paired to work, albeit you should only do so the first time you use them with your iPad. devices as your Mac or PC.
• Beginning with the second generation, all iPad Pros come with Bluetooth 5. The first iPad Pro has Bluetooth 4.2 capabilities; the fifth model has Bluetooth 5. The third and fourth generations are compatible with 4.2, although the first and second generations came with 4.0.
• Bluetooth 5 is included with the third-generation iPad Air. The 2nd generation has 4.2 support, while the first generation has 4.0.
• Bluetooth 4.2 is available on the 7th generation iPad, as well as the 5th and 6th versions. Bluetooth 4.0 is standard on the 3rd and 4th generation iPads, while Bluetooth 2.1 is standard on the 2nd generation iPad and the original iPad.

Read More: What are the general 'pros and cons' of the regular iPad models?