Makes little sense to upgrade to every new model every year, but there are still useful improvements to be had:<p>* higher framerates for 4K: 60p, 120p<p>* better battery life, 1h30m is sometimes plenty, and sometimes a little short<p>* better (or in GoPro&#x27;s case, any) image stabilization and vibration reduction<p>* smaller size and weight, new mounting options