Phones with best battery life 2021 - buyer’s guide

GSMArena team, Last updated 30 June 2021.

Last updated: June 30, 2021 (Changelog)

Fast charging has been getting faster and more widely available even on more affordable smartphones. Still, while being able to top up a phone in less than an hour, or even as fast as half an hour, can lead to changing your charging habits entirely, actual battery autonomy remains a key priority - no VOOC can help you out when there's no power outlet around.

So, on this page you will find the phones that prioritize battery life and scored at the top of our battery testing chart.


Editors' choice

Xiaomi Poco F3

Xiaomi Poco F3

Specs
  • 114h Endurance rating (23:40h calls, 15:58h web, 19:02h video)
  • 4,520mAh battery, 33W charging
  • Cheap, yet flagship-grade phone
  • 120Hz OLED screen, HDR10+
  • Snapdragon 888 chip
  • Versatile camera setup
  • IP53-rated
  • No microSD slot, no 3.5mm jack
  • Mediocre ultrawide camera quality

The most recent Poco F3 replaces our previous top pick for a battery life champ - the Poco F2 Pro. It is currently one of the most powerful smartphones and the most dependable performer when it comes to battery life.

The threequel to the legendary Pocophone has everything a flagship on a budget should pack - a great HDR10+ OLED screen, 120Hz at that, the most current Snapdragon 888 5G chipset, and plenty of cameras.

The Poco F3 has a large enough 4,520mAh battery that turned out to be quite dependable – it provides the ultimate gaming and/or multimedia experience in one charge. And then you can top up that battery nicely fast with the supplied 33W charger.

There are phones that scored better, that’s for sure, but none of these can match the Poco F3 for its all-round package and battery life, especially considering the Snapdragon 888 powerful chipset.

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Xiaomi Redmi Note 10 Pro

Xiaomi Redmi Note 10 Pro

Specs
  • 118h Endurance rating (28:45h calls, 14:13h web, 17:44h video)
  • Great 120Hz AMOLED screen, HDR10
  • Snapdragon 732G chipset is snappy and efficient
  • Good camera quality overall
  • Dedicated microSD slot, 3.5mm jack, NFC
  • IP53-rated, dual Gorilla Glass 5
  • No reverse charging
  • No Night Mode on ultrawide, low-light quality is merdiocre
  • A higher grade chipset would have been more exciting

Next on our list is the Redmi Note 10 Pro. It’s a mid-ranger with outstanding battery autonomy and fast enough charging. It impresses with a higher-grade 120Hz AMOLED screen and a 108MP primary camera with enjoyable stills and videos.

The Redmi Note 10 Pro is quite the looker, too. It has two Gorilla Glass 5 panels and is IP53-rated. It packs all sorts of connectivity options, NFC included. The Snapdragon 732G isn’t as exciting as some faster SoCs within other competitors, but it sure get the job done and is adequate for its price.

The Redmi Note 10 Pro is available under different names on different markets. You can get also get it as Redmi Note 10 Pro Max in India.

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Realme 8

Realme 8

Specs
  • 127h Endurance rating (36:10h calls, 17:41h web, 17:12h video)
  • Bright Super AMOLED HDR10 screen
  • Solid performance on a budget
  • 3.5mm jack, microSD, NFC, FM radio
  • 30W fast charging
  • Over the top design
  • The camera quality is subpar
  • No stereo speakers

The Realme 8 impressed us with its long battery life and fast charging. It also packs one very decent Super AMOLED screen and a capable Helio G95 chip, which does well for games. It also offers speedy charging, NFC, a 3.5mm jack, a dedicated microSD slot, and even FM radio.

Its camera setup may be packing four shooters, but the photo quality of the main and ultrawide shooters was rather uninspiring. The videos turned out nice, though, selfies, too.

The Realme 8 isn't the best phone, but it's cheap, it aced our battery life test, and it offers more than enough for its price.

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Samsung Galaxy A12

Samsung Galaxy A12

Specs
  • 123h Endurance rating (31:34h calls, 16:18h web, 15:19h video)
  • Good quad-camera on the cheap
  • NFC, microSD, 3.5mm jack, FM radio
  • Cheap
  • Low-res screen
  • Poor processor performance
  • Sluggish charging

The €150 Samsung Galaxy A12 is one very affordable smartphone if battery life comes first. It has a large screen with a tiny notch that's ideal for watching videos. The quad-camera on the back is decent, too.

The phone doesn't impress with performance; its screen is just 720p and with washed out colors. The Android 11 OS and One UI are still quite snappy, though.

So, the Galaxy А12 is for those of you on a limited budget and prioritizing battery life above everything else. If that's not the case, then we should probably look elsewhere.

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Xiaomi Redmi Note 10

Xiaomi Redmi Note 10

Specs
  • 110h Endurance rating (41:21h calls, 13:55h web, 20:13h video)
  • 33W charging
  • Bright Full HD Super AMOLED screen
  • Good quad-camera
  • IP53-rated, microSD, 3.5mm jack, FM radio
  • Stereo speakers
  • No NFC
  • Not the fastest SoC around

The €170 Xiaomi Redmi Note 10 is one attractive budget offer. It has a 6.43" 1080p OLED screen and relies on the decent though behind the curve Snapdragon 678 chipset. The camera on the back offers good regular and ultrawide photos, videos turned out fine, too.

But the reason we included this Redmi Note 10 Lite is because of its outstanding battery life and 33W fast charging. You can watch videos for 20 hours and then some or talk for 41 hours uninterrupted. The Redmi Note 10 offers great battery autonomy in addition to its balanced feature set and we do recommend it. Plus, it is very reasonably priced, too.

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Realme 7 5G

Realme 7 5G

Specs
  • 129h Endurance rating (35:38h calls, 18:57h web, 16:03h video)
  • 30W charging
  • Large Full HD screen, 120Hz
  • Weather-sealed ports and loudspeaker
  • Good quad-camera
  • Very good performance, 5G
  • NFC, 3.5mm jack, microSD slot
  • 120Hz refresh rate handling and automatic switching needs work

The Realme 7 5G is among the cheapest 5G phones priced at around €250 or so. It offers a large LCD screen with 120Hz refresh rate and runs on the Dimensity 800U 5G chip that provides decent performance. You can also rely on a pretty good quad-camera on the back.

The Realme 7 5G is a champ when it comes to battery life though. It scored a 129h endurance rating on our battery life test and is great for calls, web and even video playback. It charges quite fast, too. It is really hard to find flaws in this offer and that's why it deserves to go in ours and yours shopping lists.

There is a newer, but not better Realme 8 5G model, which is a tiny bit cheaper. But it has inferior screen, GPU, camera and charging speed, so we chose to keep the Realme 7 5G instead.

Read full review

Fastest charging

Realme 7 Pro

Realme 7 Pro

Specs
  • 113h Endurance rating (35:48h calls, 16:12h web, 18:10h video)
  • 65W charging
  • Large OLED screen
  • Water-repellent coating
  • Good quad-camera
  • Very good performance
  • Stereo speakers, NFC, 3.5mm jack, microSD slot
  • 60Hz screen
  • No NFC (market dependent)
  • Underwhelming video recording quality

The Realme 7 Pro is about €20 or so more expensive over the Realme 7 5G and also impresses with battery life. While it doesn't come with an HRR screen, its panel is of the OLED kind and it features a stereo speaker setup.

The Realme 7 Pro did great in our battery life test with excellent on-screen tests and talk time. It can charge super-fast thanks to Realme's 65W SuperDart charging solution. It may not be featuring the smoothest of screens, but its performance and OLED panel are more than adequate, and we think it deserves a place here for its superb battery life and charging.

The Realme 8 Pro is already available, but it's not exactly an upgrade. Just like the 8 5G, the 8 Pro is a bit toned down version of the 7 Pro with slower charging speed, one speaker, lack of water seals and Gorilla Glass protection. The only notable update is the higher-res 108MP main camera capable of 3x lossless zoom. But we don't think it's worth over the 7 Pro and that's why we kept the previous model as our pick.

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Xiaomi Poco M3

Xiaomi Poco M3

Specs
  • 154h Endurance rating (46:04h calls, 21:57h web, 17:03h video)
  • Large 1080p screen, small notch
  • Okay camera experience
  • 6,000mAh battery, 18W charging
  • Stereo speakers, IR port, microSD, 3.5mm jack
  • No ultrawide camera
  • No NFC
  • Gaming would require lowering the screen resolution

The $130/€150 Poco M3 is our next pick in our ever-expanding battery life champions list. It has a large high-res LCD screen, stereo speakers and a massive 6,000mAh battery with fast charging, which all make the M3 overqualified for this budget class. The phone scored an outstanding 154h endurance rating on our battery life test and it secured a spot on this list right then and there.

Gaming is very much possible, too, you just need to lower the graphics settings and resolution. The M3 won't be known for its camera prowess either, but it's not that bad. It makes up for that with speedy charging, a 3.5mm audio jack, stereo speakers, and a microSD storage.

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Xiaomi Poco M3 Pro 5G

Xiaomi Poco M3 Pro 5G

Specs
  • 121h Endurance rating (32:14h calls, 18:05h web, 16:36h video)
  • Large 1080p screen, small notch
  • Good camera experience
  • 5,000mAh battery, 18W charging
  • Stereo speakers, IR port, microSD, 3.5mm jack, NFC
  • No ultrawide camera
  • No stereo speakers
  • Gaming would require lowering the screen resolution

The €170 Poco M3 Pro joins the Poco M3 in this chapter. It has a large 1080p LCD screen with 90Hz refresh rate support and the most affordable 5G-capble chip – the Dimensity 700 5G. The M3 Pro scored an excellent 121h endurance rating on our battery life test and it can be recharged fast enough.

The M3 Pro does not offer stereo speakers like the regular M3 model. And gaming is only possible by using the lowest graphics settings and resolution. But it’s an okay phone, quite affordable at that, offering 5G, a good screen, a 3.5mm audio jack, NFC, and a microSD storage.

Read full review
Samsung Galaxy A42 5G

Samsung Galaxy A42 5G

Specs
  • 144h Endurance rating (41:01h calls, 19:12h web, 24:11h video)
  • Bright AMOLED, flagship-grade performance, 5G
  • Great photo and video quality
  • Recent software
  • Low-res screen
  • Sluggish charging

The €299 Samsung Galaxy A42 5G is one very interesting offer - it has an AMOLED screen and flagship-grade performance in addition to its great battery life and photography skills. It even offers 5G connectivity at that price.

There is a catch, though. The screen is of 720p resolution and charging the beefy battery takes longer than we'd have liked it. Then again, at that price we are getting plenty, more than we would have hoped for, in fact.

Read full review
Samsung Galaxy M62

Samsung Galaxy M62

Specs
  • 7000mAh battery, 25W charging (older model had 156h endurance)
  • Large 1080p AMOLED, good performance
  • Promising photo and video quality
  • Potent chip with flagship-like performance
  • Recent software
  • Others offer HRR screens at that price

The $400 Samsung Galaxy M62 and its large 7,000mAh battery are an instant attention-grabber. Unlike the Galaxy A42 5G we recommended above, this M62 comes with a 1080p screen, is noticeably faster to charge and it packs one very capable Exynos chip with excellent performance. So, if the battery and the OLED resolution are of great importance - this could be the better option.

The only thing stopping us to instantly recommend this one is that others have HRR screens and stereo speakers for the same cash. And it's sold mostly in Asia, making it a nearly impossible option for the Western markets.

SPECS

Most recent updates

Juna 30, 2021: Added the Poco M3 Pro.

May 19, 2021: Replaced the Poco F2 Pro with the Poco F3 as our Editors' Choice. Replaced the Realme 6i with the Realme 8. Replaced the Redmi Note 9S with the Redmi Note 10 Pro. Replaced the Mi Note 10 Lite with the Redmi Note 10. Replaced the Galaxy A21s with the Galaxy A12. Replaced the Galaxy M51 with the Galaxy M62. Removed the Galaxy M30s, Moto G9 Plus, Moto G8 Power / G Power.

Jan 05, 2021: Added Samsung Galaxy M51. Added Samsung Galaxy A42 5G. Added Poco M3. Added Moto G8 Power / G Power.

Nov 27, 2020: Replaced Moto G8 Power with G9 Plus. Replaced the Realme 5 with Realme 7 Pro and Realme 7 5G. Added Samsung Galaxy A21s. Added Mi Note 10 Lite. Removed iQOO 3.


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Reader comments

  • kimdian04

so true. i have the same problem with the battery on my poco F3

Poco F3 114h Endurance rating (23:40h calls, 15:58h web, 19:02h video) 4,520mAh battery, 33W charging Cheap, yet flagship-grade phone 120Hz OLED screen, HDR10+ Snapdragon 888 chip Versatile camera setup IP53-rated no, it doesn'...

  • Anonymous

Hmmmmm. I have a poco f3 and the Battery is a bit dissappointing, the Battery drain is a real problem