Phones with the biggest batteries

Top 10Samsung5GHeadphone jackBiggest screen120HzMicroSD slotRAMBudget
Smartphones (1 - 5)
Blackview BV9100Oukitel K13 ProOukitel K12Doogee S88 ProSamsung Galaxy M51Ulefone Power 3LDoogee S68 ProHomTom S99iUmidigi Power 3Samsung Galaxy M31Xiaomi Redmi Note 9 4G (128GB / 8GB RAM)Samsung Galaxy M31sXiaomi Redmi Note 9 4G (128GB / 4GB RAM)Xiaomi Redmi Note 9 4G (128GB / 6GB RAM)Xiaomi Redmi Note 9 4GXiaomi Redmi 9 PowerPoco M3Samsung Galaxy F41Asus ROG Phone III (128GB / 12GB RAM)Asus ROG Phone III (256GB / 12GB RAM)
Image
Blackview BV9100
Oukitel K13 Pro
Oukitel K12
Doogee S88 Pro
Samsung Galaxy M51
Ulefone Power 3L
Doogee S68 Pro
HomTom S99i
Umidigi Power 3
Samsung Galaxy M31
Xiaomi Redmi Note 9 4G (128GB / 8GB RAM)
Samsung Galaxy M31s
Xiaomi Redmi Note 9 4G (128GB / 4GB RAM)
Xiaomi Redmi Note 9 4G (128GB / 6GB RAM)
Xiaomi Redmi Note 9 4G
Xiaomi Redmi 9 Power
Poco M3
Samsung Galaxy F41
Asus ROG Phone III (128GB / 12GB RAM)
Asus ROG Phone III (256GB / 12GB RAM)
Best price
Best price
Battery powerBattery power, or battery capacity, represents the amount of electrical energy that a battery can store. More battery power can be an indication of longer battery life.
Battery powerBattery power, or battery capacity, represents the amount of electrical energy that a battery can store. More battery power can be an indication of longer battery life.13000mAh
11000mAh
10000mAh
10000mAh
7000mAh
6350mAh
6300mAh
6200mAh
6150mAh
6000mAh
6000mAh
6000mAh
6000mAh
6000mAh
6000mAh
6000mAh
6000mAh
6000mAh
6000mAh
6000mAh
Screen sizeThe bigger the screen size is, the better the user experience.
Screen sizeThe bigger the screen size is, the better the user experience.6.3"
6.41"
6.3"
6.3"
6.7"
6"
5.9"
5.5"
6.53"
6.4"
6.53"
6.5"
6.53"
6.53"
6.53"
6.53"
6.53"
6.4"
6.59"
6.59"
ResolutionResolution is an essential indicator of a screen's image quality, representing the maximum amount of pixels that can be shown on the screen. The resolution is given as a compound value, comprised of horizontal and vertical pixels.
ResolutionResolution is an essential indicator of a screen's image quality, representing the maximum amount of pixels that can be shown on the screen. The resolution is given as a compound value, comprised of horizontal and vertical pixels.1080 x 2340px
720 x 1560px
1080 x 2340px
1080 x 2160px
1080 x 2340px
720 x 1440px
1080 x 2280px
720 x 1440px
1080 x 2340px
1080 x 2340px
1080 x 2340px
1080 x 2400px
1080 x 2340px
1080 x 2340px
1080 x 2340px
1080 x 2340px
1080 x 2340px
1080 x 2340px
1080 x 2340px
1080 x 2340px
Pixel densityPixel density is a measurement of a screen's resolution, expressed as the number of pixels per inch (PPI) on the screen. A higher pixel density translates into more clarity and sharpness for the images rendered on the screen, thus improving the quality of the viewing experience.
Pixel densityPixel density is a measurement of a screen's resolution, expressed as the number of pixels per inch (PPI) on the screen. A higher pixel density translates into more clarity and sharpness for the images rendered on the screen, thus improving the quality of the viewing experience.409ppi
268ppi
409ppi
383ppi
385ppi
268ppi
428ppi
293ppi
395ppi
411ppi
395ppi
405ppi
395ppi
395ppi
395ppi
395ppi
395ppi
403ppi
391ppi
391ppi
CPU speedThe CPU speed indicates how many processing cycles per second can be executed by a CPU, considering all of its cores (processing units). It is calculated by adding the clock rates of each core or, in the case of multi-core processors employing different microarchitectures, of each group of cores.
CPU speedThe CPU speed indicates how many processing cycles per second can be executed by a CPU, considering all of its cores (processing units). It is calculated by adding the clock rates of each core or, in the case of multi-core processors employing different microarchitectures, of each group of cores.4 x 2.3GHz & 4 x 1.8GHz
4 x 2.3GHz & 4 x 1.65GHz
4 x 2.3GHz & 4 x 1.8GHz
4 x 2.1GHz & 4 x 2GHz
2 x 2.2GHz & 6 x 1.8GHz
4 x 1.5GHz
4 x 2.1GHz & 4 x 2GHz
4 x 1.5GHz
4 x 2GHz & 4 x 2GHz
4 x 2.3GHz & 4 x 1.7GHz
4 x 2GHz & 4 x 1.8GHz
4 x 2.3GHz & 4 x 1.7GHz
4 x 2GHz & 4 x 1.8GHz
4 x 2GHz & 4 x 1.8GHz
4 x 2GHz & 4 x 1.8GHz
4 x 2GHz & 4 x 1.8GHz
4 x 2GHz & 4 x 1.8GHz
4 x 2.3GHz & 4 x 1.7GHz
1 x 3.1GHz & 3 x 2.42GHz & 4 x 1.8GHz
1 x 3.1GHz & 3 x 2.42GHz & 4 x 1.8GHz
RAMRandom-access memory (RAM) is a form of volatile memory used to store working data and machine code currently in use. It is a quick-access, temporary virtual storage that can be read and changed in any order, thus enabling fast data processing.
RAMRandom-access memory (RAM) is a form of volatile memory used to store working data and machine code currently in use. It is a quick-access, temporary virtual storage that can be read and changed in any order, thus enabling fast data processing.4GB
4GB
4GB
6GB
8GB
2GB
6GB
2GB
4GB
6GB
8GB
8GB
4GB
6GB
8GB
4GB
4GB
6GB
12GB
12GB
Megapixels (main camera)The number of megapixels determines the resolution of the images captured with the main camera. A higher megapixel count means that the camera is capable of capturing more details. However, the megapixel count is not the only important element determining the quality of an image.
Megapixels (main camera)The number of megapixels determines the resolution of the images captured with the main camera. A higher megapixel count means that the camera is capable of capturing more details. However, the megapixel count is not the only important element determining the quality of an image.16MP & 0.3MP
16MP & 2MP
N.A.21MP & 8MP & 8MP
64MP & 12MP & 5MP & 5MP
8MP & 5MP
21MP & 8MP & 8MP
13MP & 2MP
48MP & 13MP & 5MP & 5MP
64MP & 8MP & 5MP & 5MP
48MP & 8MP & 2MP
64MP & 12MP & 5MP & 5MP
48MP & 8MP & 2MP
48MP & 8MP & 2MP
48MP & 8MP & 2MP
48MP & 8MP & 2MP & 2MP
48MP & 2MP & 2MP
64MP & 8MP & 5MP
64MP & 13MP & 5MP
64MP & 13MP & 5MP
Megapixels (front camera)The number of megapixels determines the resolution of the images captured with the front camera. A higher megapixel count means that the front camera is capable of capturing more details, an essential factor for taking high-resolution selfies.
Megapixels (front camera)The number of megapixels determines the resolution of the images captured with the front camera. A higher megapixel count means that the front camera is capable of capturing more details, an essential factor for taking high-resolution selfies.16MP
8MP
16MP & 2MP
16MP
32MP
5MP
16MP
8MP
16MP
32MP
8MP
32MP
8MP
8MP
8MP
8MP
8MP
32MP
24MP
24MP
Wireless chargingThe manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.
Wireless chargingThe manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.
Dust- and water-resistanceThe device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water.
Dust- and water-resistanceThe device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water.
External memory slotThe device has a standard memory slot (such as an SD or micro SD card slot) that enables you to extend the built-in internal storage with affordable memory modules, or easily retrieve data, such as photographs, from the memory card.
External memory slotThe device has a standard memory slot (such as an SD or micro SD card slot) that enables you to extend the built-in internal storage with affordable memory modules, or easily retrieve data, such as photographs, from the memory card.

Is bigger actually better? Not always, and definitely not when it comes to the physical size of a phone’s battery. Sure, it’s true that, when comparing phones purely based on battery power, a phone with a larger battery (and therefore more power), will last longer than phones with a smaller battery. However, you then have to factor in other features, such as different processors and other internal hardware, which also affect the performance of a phone’s battery life.

Defining battery power

In theory, more mAh (milliampere-hours) does equal more power, but when put to the test, not all of the biggest batteries performed equally. Let’s start off with defining battery power, though. You know it’s measured in mAh, which indicates how much electric power can be used over time. A battery with more mAh translates into longer battery life. 

The average phone has a battery power of around 2,500mAh. When comparing today’s top phones, you’ll likely see the battery power listed as one of the first features. And, sure, it helps to see that a phone has a large battery, but you’ll want to compare its overall performance with other benchmarks first before making a purchase.

Battery power: Is more mAh really more?

To measure the correlation between battery power and mAh, Android Authority created their own speed test, the Speed Test G. While the test measures the performance of phones’ CPU speed, GPU speed, and overall performance, it also measures battery life performance. The results? Quite shocking (or not so shocking if you’ve been following along with what we’re saying). 

In the test, they recorded how long it took to drain the battery of each phone completely. The Google Pixel 3a XL lasted by far the longest at six hours, but only has a battery power of 3,700mAh. The much larger Asus ROG Phone II, however, which boasts a 6,000mAh battery, only lasted for just over four and a half hours.

So, what’s affecting battery power?

Really, it comes down to what you’re using the phone for and which processor is powering it. Low or even mid-range processors tend to consume far less power. So, if you test the same battery in two phones with different processors, the low-range processor will ultimately ensure that the battery lasts longer; it’s not constantly pulling tons of juice out to power tasks at a faster rate.

While this isn’t always the case, it certainly affects the battery life of phones with bigger batteries. Keep this in mind when comparing top smartphones if your biggest concern is battery life.

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