https://devzone.nordicsemi.com/f/nordic-q-a/5441/apple-connection-guidelinesHi Nordic Guy, I&#39;m trying to fine tune my connection parameters for better battery life, while at the same time trying to keep them within Apple&#39;s guideline. I notice in their Bluetooth Design Guidelines that they have 5 conditions to &quot;abide&quot; by. Ien-USTelligent Community 13Wed, 04 Feb 2015 23:23:49 GMThttps://devzone.nordicsemi.com/thread/19004?ContentTypeID=1Wed, 04 Feb 2015 23:23:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:209f330c-f5d7-48c5-8099-9148fe34d29fLocky<p>This means your maximum Interval setting must &lt;= 2 seconds</p> <p>I believe the 4 is erroneous as I&#39;ve never seen an iPhone accept an max Interval longer than 2 seconds</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/19003?ContentTypeID=1Wed, 04 Feb 2015 21:32:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:59bb00b0-21bd-4c4d-97e8-88d879e6ccedBLEdude<p>Hrmm...</p> <p>Interval max * (slave latency + 1) &lt; 2 is the first requirement in the guideline though.</p> <p>It doesn&#39;t make sense to me then that in the third requirement it would have to be less than 4... unless the four is there erroneously?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/19002?ContentTypeID=1Wed, 04 Feb 2015 20:14:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:467893ab-205f-48f7-a1ac-16ab752be4cfLocky<p>Interval Max Slave Latency = Interval max * ( Slave Latency + 1 )</p> <p>Therefore in your case with Slave Latency = 0</p> <p>Interval Max Slave Latency = Interval Max</p> <p>Just make sure you have a 20ms delta between your min and max interval settings</p><div style="clear:both;"></div>