Heat pipes are slightly costly so we can find them only on flagship devices as they use top of the line specs and which need the cooling system the most when compared to mid-range or budget devices.There is also an alternative to heat pipes with vapor chambers which are slightly thicker and more expensive.The Vapor chambers are being used in high-end gaming laptops as they are the best way to dissipate heat in high-end GPU’s.
As Vapour chambers are slightly thicker than heat pipes so many manufacturers are avoiding it to keep the device slim and there are some vapor chambers which are just 0.4 mm thick.The vapor chamber being tested by manufacturers but till date, we don’t have any smartphone based on Vapor chamber.
As per Industry Insider, Samsung might adopt the Vapor chamber in flagship devices which are scheduled to launch on 2019.