Best battery life phone 2019

Which phones have the best battery life? If you want the best battery life on a smartphone, these are the handsets to consider

best battery life phone

Of all the things that we debate when comparing smartphones, there is one above all others that can render the rest irrelevant. If your phone runs out of battery, you can’t use any of its amazing features.
Bad battery life on smartphones is something we’ve all grown to tolerate. While Apple’s iPhone is usually cited as a device that needs charging by lunchtime, it is not the only culprit.
And hey, we’re all probably just staring at our phone screens for too long. Phones – and therefore batteries – are pretty small!

That’s why at Tech Advisor we test the battery life of all the phones we review. Some phones are designed to have extra-long battery life by using large batteries and mid-range processors. But other popular high-end models are slim and battery hungry and leave some users frustrated.
You can of course charge during the day if it doesn’t bother you or even carry around a power bank to top up your phone. But if you don’t want to keep checking that percentage icon, then there are some phones that you should look to.
We review and test many phones. The below list are the ten phones that most recently have given the best battery performance.

Battery capacity explained

Battery capacity is measured in milliamp hours (mAh). The higher the mAh of a battery, the higher the technical capacity. But the phones with the highest mAh aren't always the phones with the best battery life.
It can depend on how efficient the processor is in conjunction with the software, as well as how much you actually use your phone. Expensive high-end phones often are faster and have better screens, but this will mean the battery life is normally shorter.

What to look out for

Phones with great looking QHD displays will drain battery life faster than phones with lower resolution displays. So you need to prioritise - if you want longer battery life, you might have to settle for a mid-range phone. Thankfully, this means your phone will cost you less.
Many phones today, but not all, have fast charging. Often cheaper mid-range phones have great battery life, but don't fast charge. Check before you buy to avoid disappointment.

What do the results show?

We use Geekbench 4’s battery test feature to get the time in minutes and seconds, but this is not an indication of how long the phone will actually last. 
In all tests, the screen brightness is set to the same level to ensure a fair test (120cd/m2). The phone fully discharges its battery and the screen is set not to dim or turn off.
For example, if a phone lasts 8:15 in a test, it lasted 8 hours and 15 minutes with the screen on and the test processes running. This example is a very good ‘screen on time’ – and that phone will last a very long time in real world use, most likely over a day's use.
As well as the Geekbench test, we also confirm with real-world use that these phones had excellent battery life that lasts throughout a day of use and beyond.
The star scores here are the scores we gave the phone overall in the original review, not star rating scores for battery life.
As we test more phones, we’ll update the chart.

Best battery phones 2019

1. Moto G7 Power

Moto G7 Power
  • Ratingratingsratingsratingsratingsratings
  • RRP: $249

Battery test score: 14:02
Battery size: 5000mAh
It was always bound to have good battery life thanks to the big 5000mAh cell, but when it's powering a budget phone then this insane 14+ hours is possible.
It's even in the name and the point of the phone - the Power is built for exactly that, and will last most people a solid two, if not three days use.
It's underpowered and won't run high-end games or multitask very well, but if battery life is your primary smartphone concern then there are no better phones for you than this.

2. OnePlus 7

OnePlus 7
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  • RRP: £499

Battery test score: 11:40
Battery size: 3700mAh
The OnePlus 7 might have been overshadowed by the bigger, better 7 Pro, but it's this regular model that has the better battery life. Add to that great performance and no nonsense design and you have a winner.
It costs less than the Pro too so if battery and performance are your main concerns, this is the best high-end phone for that.
Read our full OnePlus 7 review

3. Huawei Mate 20 Pro

Huawei Mate 20 Pro
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  • RRP: Approx $750

Battery test score: 11:35
Battery size: 4200mAh
Budget phones with big batteries and low-res screens are normally at the top of this chart, so it's amazing to see a bonafide flagship here for once. The Huawei Mate 20 Pro is not only one of the phones of the year but the current phone we've tested with the best battery life.
Huawei has done a great job on the battery life but the phone itself is a stunner - an amazing display, three superb rear cameras and even reverse wireless charging to top up someone else's phone.
Add to that improved EMUI software that's better than before and you have a real - if expensive - winner.

4. Huawei P30 Pro

Huawei P30 Pro
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  • RRP: £899 (128GB), £1099 (512GB)

Battery test score: 11:30
Battery size: 4200mAh
With the same size battery as the Mate 20 Pro, the P30 Pro performs almost identically in the battery test with only five minutes in it. And wow, what a time.
The P30 Pro keeps going and going in real world use too. Well over a day, in fact. With light use you'll probably get two.
The display capped at 1080p helps this but the other draw here is the absolutely stunning cameras that can achieve 10x optical zoom.
Read our full Huawei P30 Pro review

5. Moto E5 Plus

Moto E5 Plus
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  • RRP: $179

Battery test score: 11:22
Battery size: 5000mAh
This phone has outstanding battery life. This is down to its relatively low-end specs and very large 5000mAh battery.
It also has a big 6in screen and costs just £150. You do sacrifice performance, but if you want a cheap smartphone with the longest lasting battery, this is it.

6. Huawei Mate 20 X

Huawei Mate 20 X
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  • RRP: £799

Battery test score: 10:48
Battery size: 5000mAh
With a massive battery this Huawei flagship is a larger screen variation of the Mate 20 Pro. It has the same outstanding camera set up but adds a headphone jack and a smaller notch in a phone that is cheaper (but still expensive).
Huawei pushes this as a gaming phone and it runs AAA mobile games like a dream with slick performance on the 7.2in display. It'll be too big for most people but battery life is exemplary for a high-end phone.
Read our full Huawei Mate 20 X review

7. Vodafone Smart V10

Vodafone Smart V10
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  • RRP: £105

Battery test score: 10:29
Battery size: 3400mAh
The highest compliment you can pay to this phone is that no-one would suspect it retails for just £105. The second is its amazing battery life.
If you don't mind being tied to Vodafone in the UK then this very affordable handset will last you well into a second day of use, and maybe a third if you're a light user.

8. Google Pixel 3a XL

Google Pixel 3a XL
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  • RRP: $479

Battery test score: 10:08
Battery size: 3700mAh
At last, a cheaper Pixel - and one with a much better battery than the regular more expensive Pixel 3. It also has the same excellent camera, so it's win-win.
If you want a stock Android experience with a durable plastic construction, solid performance and a headphone jack, look no further.

9. Asus ZenFone Max Pro M1

Asus ZenFone Max Pro M1
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  • RRP: $199

Battery test score: 09:59
Battery size: 5000mAh
The ZenFone Max Pro M1 has a huge battery and rightly delivers on outstanding battery life. It charges quite slowly, though.
The clean software it runs is most welcome and the large 6in display is great for the price. Dual cameras and solid build make this a great choice if you want a simple, affordable phone that lasts for two days. 

10. Sony Xperia XA2 Ultra

Sony Xperia XA2 Ultra
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  • RRP: $449.99

Battery test score: 09:57
Battery size: 3580mAh
The XA2 Ultra is a large phone, but this means it packs a huge battery. With that you get a big display that lasts a whole day and then some.
This is down to the efficient processor, Android Oreo and a lower resolution screen than high-end phones. If you don't mind the size, it's a great battery choice.
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