The Xperia Z2 has liquid heat-pipe cooling technology

The Xperia Z2 has liquid heat-pipe cooling technology

A DigiTimes report revealed that Sony is the second smartphone vendor to adopt liquid heat-pipe cooling technology for its products, namely the Xperia Z2. The first company to move on from the mainstream graphite carbon fiber solution used for heat dissipation was Japan's NEC, with its MediaS X06E Snapdragon 600-powered smartphone. Around that time, Samsung and Lenovo were also looking up the technology together with Taiwan-based thermal module makers. While specialized heat pipes for smartphones are already available for mass production, the two technological giants decided against adopting them for the time being.



Compared to PC and laptop heat-pipes, which range from 0.003 inches (0.8mm) to 0.08 inches (2mm) in diameter, smartphone pipes measure only 0.02 inches (0.6mm). They are said to have better heat-dissipation effects than graphite carbon fiber sheets. Although cooling technology doesn't seem to be an obstacle for device performance right now, heat pipes could become common in next year's flagship models. It goes without saying that, as chipsets and basebands grow increasingly powerful, they will be emitting larger amounts of heat.


The Sony Xperia Z2 was delayed until June in Hong Kong and other markets. Meanwhile, it is speculated that Verizon will launch the smartphone in the US as an exclusive in the second half of 2014. Over at the UK, it seems the new Xperia flagship won't be coming in May, as previously reported. Allegedly, it's not the heat-pipes, but a shortage of specific parts that contributed to the postponement. The smartphone was revealed at this year's MWC in Barcelona, and was supposed to arrive on time to spar with Samsung and HTC's new contenders.


Update: Ironically enough, it's possible that overheating and build problems with the Xperia Z2 have contributed to its delayed release in broader markets. Users in Singapore, where the smartphone has been selling for about a week, reported that the Z2 is overheating while recording 4K-video, to an extent where the camera app gets shut down. In addition, owners have found a small gap between the phone's display and body, which could compromise the phone's waterproofing. Both issues are being investigated by Sony at the moment.



Meanwhile, here's more about how each cooling method works. This information is brought to you by Panasonic and CoolerMaster.



Carbon fiber sheets:





Heat-pipe cooling:





References: "The Wonder of Smartphones That Do Not Become Hot" and CoolerMaster's ODM website



source: DigiTimes, Xperia Blog

Related phones

Xperia Z2
  • Display 5.2" 1080 x 1920 pixels
  • Camera 20.7 MP / 2.2 MP front
  • Processor Qualcomm Snapdragon 801, Quad-core, 2300 MHz
  • Storage 16 GB + microSDXC
  • Battery 3200 mAh(19h 3G talk time)

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28 Comments

1. MacWiNux

Posts: 128; Member since: Jan 07, 2014

Good for Sony I think the others should follow as well :D

18. hung2900

Posts: 966; Member since: Mar 02, 2012

The copper cooling in HTC One and GS5 is more than enough.

3. TheMeaTree

Posts: 8; Member since: Mar 20, 2014

i am so disappointed with sony, not because they have made a bad phone but quite the opposite i have stuck with the same old LG Town C300 for 3 years but this phone is simply the best one on the market so far and it WAS going to be the one to break my fast. With this 6 month period between there flagships im just going to get a Nokia 1520 or just wait for the next one in 4 months.:( speaking of which will they be releasing Z3 6 months from the announcement date or the actual release date?

28. guzza

Posts: 15; Member since: Nov 06, 2012

If they are postponing the Z2's delivery dates, I think its safe to say they will be do the same for Z3 in order to ensure enough sales cover the developmental & marketing costs for the Z2.

4. pwnarena

Posts: 1129; Member since: Feb 15, 2013

ironically, this is being reported while news of z2 having heat issues is doing the rounds elsewhere.

7. spiderpig2894

Posts: 597; Member since: Jan 10, 2012

Heating issues when prolong use of 4K capture PLUS the "glass-aluminum gap" issue which might compromise the waterproofing.

11. luis.d

Posts: 354; Member since: Dec 04, 2013

Thanks for the tip guys, we updated the article.

20. jaytai0106

Posts: 1888; Member since: Mar 30, 2011

I haven't used the 4K recording on my Z2 yet... Now I really don't want to use it XD

24. jeeta444

Posts: 154; Member since: Mar 24, 2014

Z2 overheats when shooting 4K video for extended periods.because 4k put high demands on CPU and battery...

27. PunyPoop

Posts: 752; Member since: Jan 18, 2013

Never had a problem shooting 4K video with my Z2. Maybe it's an isolated case. Or I'm one of the luckiest guy :)

5. marlboro

Posts: 94; Member since: Mar 27, 2014

z2 compact...

6. StraightEdgeNexus

Posts: 3689; Member since: Feb 14, 2014

Whats the image about luis d. That black slab

22. mixedfish

Posts: 1555; Member since: Nov 17, 2013

LOL, it's a picture of Sony's portable charger/memory card reader for Xperia phones.

9. 1701nino unregistered

Why do people feel the need to change their devices every year or so,i have a nexus 4 and i'm not planning to change the device,why should i?My point is that technology in mobile devices has so advanced in the last years that there is no need to change your device at least 2-3 years.

13. AliNSiddiqui

Posts: 382; Member since: Sep 19, 2012

Because some people are technology enthusiasts and love the latest and greatest. If you wanted waterproof abilities, you'd have to buy a new phone. Although there is less reason to buy a new WP or a new iPhone every year because they are just one OEM who don't make many changes.. (Nokia especially).

17. RuiBacelar

Posts: 153; Member since: Feb 25, 2014

Well, I can relate to some extent, I have a Z1 and no complains about it, quiet the contrary, I love it all around, except maybe the display...but that's a minor thing. I might get a Z2 in a couple of months, when I find a good deal, trading my Z1 for Z2 and 100€ tops, thus I get the new goodies before my previous phone depreciates its value. People, think, feel and experiment before buying what companies put in front of your eyes! I've seen, touched, experienced the S5 in my local store, priced at 750€, pastic touch, the corners wil get scratched and paint (chrome) will come of, it has an nice vibrant screen but if you want some bat life you have to cut it down. I'm waiting to touch, see and feel the M8 and then the Z2, but M8 camera has killed it for me.

15. KillerKeyboard

Posts: 372; Member since: Nov 21, 2013

We want to experience or try the latest, a hobby if I might say. We all have leisures that we spend on. This doesn't really mean it's a necessity. :)

16. itsdeepak4u2000

Posts: 3718; Member since: Nov 03, 2012

Brilliant technology.

19. Killua

Posts: 270; Member since: Nov 25, 2013

Wait what? They still got overheat even after using this tech? Makes us wonder about the point of this all .. Let's hope the issues get solved quickly, so I can buy one of them.

21. antonioli

Posts: 200; Member since: Sep 08, 2013

Are they using this solution because of the overheating?

23. vishalaestro

Posts: 81; Member since: Dec 08, 2013

for a clear explanation about the HEATPIPE google vapour chamber as fast as possible . the tech used is actually a vapour chamber used in graphics card and cpu cooling

25. mike2959

Posts: 694; Member since: Oct 08, 2011

The G3 will be here by June. Sony late to the party again.

26. Chris_Bakke

Posts: 246; Member since: Jan 23, 2013

There's the "premium" build quality that Sony is known for.

* Some comments have been hidden, because they don't meet the discussions rules.

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