&lt;ul&gt; 
&lt;li&gt; Depth gauge ±1m accuracy&lt;/li&gt; 
&lt;li&gt; Water temperature sensor&lt;/li&gt; 
&lt;li&gt; Temperature sensing&lt;/li&gt; 
&lt;li&gt; Blood oxygen sensor and app&lt;/li&gt; 
&lt;li&gt; Electrical heart sensor and ECG app&lt;/li&gt; 
&lt;li&gt; Third-generation optical heart sensor&lt;/li&gt; 
&lt;li&gt; High and low heart rate notifications&lt;/li&gt; 
&lt;li&gt; Irregular rhythm notification&lt;/li&gt;
&lt;li&gt; Compass&lt;/li&gt; 
&lt;li&gt; Always-on altimeter &lt;/li&gt; 
&lt;ul&gt; 