Sony Xperia Z3 Tablet Compact battery life test is done: hail the king of tablet endurance

Ah, Sony, how do you do this on a regular basis now? The Xperia Z3 has the best battery life amongst slim flagships, the Z3 Compact is the most enduring Android munchkin out there, and now we've tested Sony's 8" Z3 Tablet Compact.

Yep, you guessed it right - Sony's first small tablet is the longest-lasting slate we've ever had the privilege to benchmark the battery life of. It clocked the whopping 9 hours and 47 minutes on our demanding battery test, meaning that it should last you through the weekend with somewhat heavy usage, which would be 4-5 hours of screen-on time per day. This score is about 40% higher than the one its direct competitor - Samsung's Galaxy Tab S 8.4 - was able to muster, too.

Granted, as with the Z3 and Z3 Compact, the tablet exhibits extremely cold and inaccurate colors, but once you get used to those, you'll appreciate the almost 600 nits of peak brightness we measured, which is 50% higher than on the iPad Air 2, though Apple's tablet has very low reflectance ratio, so the two might be on par in terms of outdoor visibility. 

These bright, cold screens that Sony placed in the Z3-series, however, seem to done with power-sipping technology that nobody can match yet, given the incredible battery endurance they deliver. Let's not forget also that, despite its mere 0.25" (6.4mm) thickness, the Z3 Tablet Compact is waterproof at up to five feet, and still one of the slimmest and lightest tablets out there, so kudos to Sony's engineering prowess - its phones and tablets now occupy five of the top 10 slots in our battery benchmark database.

We measure battery life by running a custom web-script, designed to replicate the power consumption of typical real-life usage. All devices that go through the test have their displays set at 200-nit brightness.

hours Higher is better
Samsung Galaxy Tab S 10.5
7h 2 min (Good)
Samsung Galaxy Tab S 8.4
7h 4 min (Good)
Apple iPad Air 2
7h 27 min (Good)
Apple iPad mini 2
8h 28 min (Excellent)
Apple iPad mini 3
6h 53 min (Average)
Sony Xperia Z3 Tablet Compact
9h 47 min (Excellent)

Related phones

Xperia Z3 Tablet Compact
  • Display 8.0" 1200 x 1920 pixels
  • Camera 8.1 MP / 2.2 MP front
  • Processor Qualcomm Snapdragon 801, Quad-core, 2500 MHz
  • Storage 16 GB + microSDXC
  • Battery 4500 mAh(23h 3G talk time)



1. DogeShibe

Posts: 1121; Member since: Jan 10, 2014


2. vincelongman

Posts: 5718; Member since: Feb 10, 2013

Nice and that's with a small 4500 mAh battery Sony seems to have to best battery optimization/efficiency right now

3. Symon_Fleece

Posts: 351; Member since: May 30, 2014

yes :)

6. rd_nest

Posts: 1656; Member since: Jun 06, 2010

Here's my question to PhoneArena. 1] At what display brightness is the test done? Full, half? or any specific NITS? 2] Is background data on or off, device in flight mode? 3] Is GPS on/off? 4] Does take into account 3G/LTE usage or WiFi? or is data completely off? 5] Is audio ON? 6] Does it take into account the standby usage of device? All these parameters will play a major role in battery usage.

17. nightfury

Posts: 80; Member since: Dec 04, 2013

u know u ask too many questions...are u married? if so, whether ur wife still stays with u ?

24. oister85 unregistered

Omg you mean

21. loki1717

Posts: 6; Member since: Feb 27, 2012

Naturally they do, but this is only a benchmark as a frame of reference, particularly to other devices. The parameters are negligible, so long as they remain consistent between devices.

4. hmd74

Posts: 540; Member since: Jan 31, 2013

Kudos Sony

5. vuyonc

Posts: 1091; Member since: Feb 24, 2014

I was expected a slighter higher result. It leapfrogged over everything else on GSM Arena. I'll wait until they can achieve at least the same battery life with a higher resolution. Nonetheless, the world's 2nd thinnest tablet has the best battery endurance. Are you watching, Apple?

7. trqster

Posts: 176; Member since: May 17, 2013

Great results! But don't forget the subpar resolution (for today's standards) and the inevitabe impact that has on battery life endurance... The price tag is a killer feature though for it to be another unfortunate case of DOA.

8. RebelwithoutaClue unregistered

Why is it subpar resolution? The PPI is higher than the Nexus 9 and iPad Air 2 for instance.

9. trqster

Posts: 176; Member since: May 17, 2013

Well you should compare the 8.0" Z3 Tablet Compact to the 7.9" iPad Mini 2 (retina) right...? In that case the ipad is the clear winner with 324ppi vs 283ppi for the Sony tablet.... With a quad-HD screen and a 805 Snapdragon cpu it'd really be a wow factor tablet. As it is it's close but not quite there yet. imo. And with it's fairly high price tag and Sony's less than impressive marketing campaigns it'll sadly go nowhere in terms of relevant sales. It'll be a niche tablet.

16. praveen1033

Posts: 12; Member since: Jan 26, 2014

sony made a big mistake by not appointing you as their marketing head.Right!

23. oister85 unregistered

Qhd vs 1080p they say is amost impossible to distinguish both.

10. hboy857

Posts: 367; Member since: Jun 03, 2013

After the Galaxy Alpha battery life test I don't trust PA's Battery life test anymore.

11. itsjustJOH

Posts: 232; Member since: Oct 18, 2012

Why? What's wrong with it?

12. trqster

Posts: 176; Member since: May 17, 2013

All battery tests are a bit subjective... One should always take them with a grain of salt. That being said there's no doubt in this case that the Z3's tablet has a great battery life imo.

14. hboy857

Posts: 367; Member since: Jun 03, 2013

I'm not questioning Z3 series battery life capabilities. All the products of Z3 series have awesome battery life, every tech site and reviewer can vouch for that but the same thing can't be say about alpha. But here alpha get excellent battery life rating which is really weird/suspicious because every single reviewer said iphone 6 and alpha has pretty much same kind of endurance. But here on PA iphone 6 has average battery life rating. The difference between these two phones on screen time is huge (2 hours 28 mins). If alpha has excellent battery life then iphone 6 should have pretty much same kind of battery life and Z3 compact should have at least 14 hours of battery life. Tech site like gsmarena, notebookcheck and other site point out that alpha and iphone 6 has same kind of battery life and Z3 compact has best kind of battery life. "All battery tests are a bit subjective" - you're absolutely right. That being said i can't help but think that they have done something wrong with their iphone 6 and galaxy alpha's battery test ( 2 hours 28 min on screen time is a huge difference).

13. vipervoid123

Posts: 163; Member since: Aug 27, 2013

hmm.. The Z3 Tablet Compact also have great score on GSMArena battery test too ~

15. kiwison

Posts: 18; Member since: Sep 06, 2014

and now it's time to put the same battery effort to SmartWtach 4. As far as I follow the biggest issue of smart watches is low battery, if Sony manages to do that for SW4 (and don't forget to design it, what the heck is SW3) they can be a good rival in smart wathces arena.

18. MrsJedi

Posts: 25; Member since: Oct 17, 2014

I'm hungry for a new tablet. :)

19. Fellwalker

Posts: 538; Member since: Apr 04, 2014

Daniel P. Have you reached out to Sony to ask them why they produce screens that "exhibit extremely cold and inaccurate colors"? You always grumble, but have you said it to them and asked why?

22. Dannybuoy

Posts: 3; Member since: Sep 22, 2014

As for the cold colours issue. It's a non-issue as you can tweak the colours to your liking in the settings.

25. MuhammadNuruddinAzka

Posts: 1; Member since: Oct 13, 2014

9h 47min of battery life? Aha, My iPad 2 32GB Wifi Only Can Last 10h 50min Of Battery Usage and 2d 3h of Standby Time. With These Settings: Brightness : About 10% Wifi : Turned On (Never Off) Always On Flight Mede : No/off Background App : Always Audio : 100%

Latest Stories

This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit for samples and additional information.