The quest for better battery life will hardly ever cease to push manufacturers to try hard to boost their game in this so vital and most-appreciated department. Sure, we value big and sizable batteries as much as the next man, but isn't software optimization a tad more important that pure battery capacity? We decided to check out if this is truly the case by normalizing the battery capacity of some of 2014's most popular devices.
How did we do it? First things first, we took our battery life tests (in minutes) of 11 noteworthy devices from 2014 and divided them by the capacity of their respective batteries (in milliampere-hours). For each device, the resulting value (min/mAh) is then multiplied by the average battery capacity of all 11 phones - and voila! - we have the equalized
battery life for all devices. Here's the formula, simplified even further:
[battery life (min)
÷ battery capacity (mAh)]
× average battery capacity
= normalized battery life
What does the results listed below actually show us? It will show us how long would each tested device last if all had the same battery capacity - in this case, roughly 2933 mAh. Figuratively speaking, it's like putting different race drivers in one and the same cars for a 1-mile drag race - the only thing that matters will be the very driving skills of the racers and not the properties of their vehicles. Thus, we can easily see which manufacturers have succeeded in optimizing their devices and which have not. All in the name of science!
|Phone||Battery capacity (in mAh)||Actual result in our battery life test||Estimated battery life with a 2933mAh battery|
|Sony Xperia Z3 Compact||2600||10 hours and 2 minutes||11 hours and 19 minutes|
|Sony Xperia Z3 ||3100||9 hours and 29 minutes||8 hours and 58 minutes|
|Apple iPhone 6||1810||5 hours and 22 minutes||8 hours and 41 minutes|
|HTC One (M8)||2600||7 hours and 12 minutes||8 hours and 7 minutes|
|Motorola DROID Turbo||3900||10 hours and 42 minutes||8 hours and 2 minutes|
|Samsung Galaxy S5||2800||7 hours and 38 minutes||7 hours and 59 minutes|
|Samsung Galaxy Note 4||3220||8 hours and 43 minutes||7 hours and 56 minutes|
|OnePlus One||3100||8 hours and 5 minutes||7 hours and 38 minutes|
|Google Nexus 6||3220||7 hours and 53 minutes||7 hours and 11 minutes|
|Apple iPhone 6 Plus||2915||6 hours and 32 minutes||6 hours and 34 minutes|
|LG G3 ||3000||6 hours and 14 minutes||6 hours and 5 minutes|
2014's most battery-efficient smartphones
2014's most battery-efficient smartphones
1. LG G3 - 6 hours and 5 minutes
The G3 was the first Quad HD handset from a major manufacturer. Unfortunately, its battery life is mediocre at best (compared with the fierce competition, that is) - the 6 hours and 14 minutes it achieved in our battery test are nothing to write home about. Equalized, its battery life stands at 6 hours and 5 minutes, which makes it one of the least-optimized flagship smartphones of 2014.
2. Apple iPhone 6 Plus - 6 hours and 43 minutes
Endowed with a 2,915mAh battery (the largest one to ever grace an Apple smartphone), the iPhone 6 Plus fares in a mediocre way and lasts for 6 hours and 32 minutes. It's equalized battery life is mostly similar - 6 hours and 43 minutes.
3. Google Nexus 6 - 7 hours and 11 minutes
What can be described as the best parting gift Motorola could have given to Google, the beastly Nexus 6, has a good battery life of 7 hours and 53 minutes. This is, of course, courtesy of tis 3,220mAh battery, equal to the one in the Galaxy Note 4. It's better optimized, though - at 8 hours and 33 minutes, it surpasses Sammy's phablet by a margin.
4. OnePlus One - 7 hours and 38 minutes
The much-famed "flagship killer" from OnePlus fared quite well in our battery test. Equalized, its battery life is slightly lower, yet acceptable.
5. Samsung Galaxy Note 4 - 7 hours and 56 minutes
The latest phablet powerhouse from Samsung would last for 8 hours and 43 minutes, which is a pretty impressive result for a Quad HD device.
6. Samsung Galaxy S5 - 7 hours and 59 minutes
The current flagship of the South Korea-based giant fares very good with its 2,800mAh juicer, achieving a result of 7 hours and 38 minutes in our custom battery test. Normalized, its result is even better, which means that it fares very well against the competition.
7. Motorola DROID Turbo - 8 hours and 2 minutes
Enter the Motorola DROID Turbo. Motorola's beast boasts a large 3,900mAh battery in the back, which keeps the lights on for 10 hours and 42 minutes. It's efficiency is more than acceptable - equalized, its battery life stands at 8 hours and 2 minutes, outperforming many a rival.
8. HTC One (M8) - 8 hours and 7 minutes
HTC proves that it can engineer long-lasting phones, as the One (M8) flagship is a very-well optimized phone - its normalized battery life of 8 hours and 7 minutes reveals that it surpasses many devices that boast larger batteries inside themselves.
9. Apple iPhone 6 - 8 hours and 41 minutes
The 1,810mAh juicer of Cupertino's smaller iPhone successfully keeps it running for 5 hours and 22 minutes, a somewhat unacceptable result for the power users out there. However, its normalized battery life shows that despite the small powerbank at the back, the phone is optimized very well and ekes out a lot of life from its battery.
10. Sony Xperia Z3 - 8 hours and 58 minutes
One of Sony's newest, the Xperia Z3, stays true to its predecessor and can be found near the top of our battery life hall of fame. The 3,100mAh juicer inside helps it remain functional for 9 hours and 29 minutes, which is an excellent result. Although lower, the normalized result is still better than almost any other phone you might throw at it.
11. Winner: Sony Xperia Z3 Compact - 11 hours and 19 minutes
Oh, yeah, it's safe to say that if you are looking for a compact and long-lasting smartphone, then you should go for a Sony handset, an Xperia Z3 Compact, in particular. The pocket-friendly trooper is among the most durable smartphones you can get right now - its 2,600mAh battery lasts for 10 hours and 2 minutes. Normalized, this value climbs even further - at 11 hours and 19 minutes reference one, the Sony Xperia Z3 Compact is the most-optimized phone you can throw your money at.