BLE 4.2 and Smart phones&#39; OS Compatibilityhttps://devzone.nordicsemi.com/f/nordic-q-a/11678/ble-4-2-and-smart-phones-os-compatibilityHi, I use SDK 10.0, SoftDevice S110 8.0, S120 2.1, or S130 1.0, (I test various examples so I change SoftDevices) iPhone 6 Plus (iOS 9.2.1), and Nexus 5 (Android 6.0.1). At this question, Petter Myhre answered that &quot;SoftDevice S130 1.0.0 isen-USTelligent Community 13Tue, 02 Feb 2016 14:20:21 GMTRE: BLE 4.2 and Smart phones' OS Compatibilityhttps://devzone.nordicsemi.com/thread/44150?ContentTypeID=1Tue, 02 Feb 2016 14:20:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8c6a4e71-fe82-4949-bcd4-1f34fbe52f7crun_ar<p>yeah, that&#39;s right.</p><div style="clear:both;"></div>RE: BLE 4.2 and Smart phones' OS Compatibilityhttps://devzone.nordicsemi.com/thread/44149?ContentTypeID=1Tue, 02 Feb 2016 10:46:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b3b0df4c-7bfe-44b2-8e33-e7b5fa6ab262MANGO<p>Okay, but what about the smart phones&#39; OS?</p> <p>Since 4.2 is backwards compatible, the OS version is not that big issue?</p><div style="clear:both;"></div>RE: BLE 4.2 and Smart phones' OS Compatibilityhttps://devzone.nordicsemi.com/thread/44148?ContentTypeID=1Tue, 02 Feb 2016 10:30:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:063d6a5e-62b0-4b9f-98f4-b9f3a873758drun_ar<p>Basically Bluetooth 4.2 is simply an extension of Bluetooth 4.0 and 4.1. It incorporates mainly some supplements and addendum&#39;s to the 4.1 spec along with a few new functions. I guess what I&#39;m trying to communicate is that it&#39;s backwards compatible, so 4.0 and 4.2 devices can interact.</p><div style="clear:both;"></div>