Samsung Galaxy S21 battery life — the results are in
Samsung Milky way S21 battery life — the results are in
Samsung turned to big batteries and a more efficient 5-nanometer processor for powering its latest Galaxy S21 phones. Based on our testing, yous'll see mixed results depending on which model you lot buy.
Things wait adept for the half dozen.8-inch Galaxy S21 Ultra, which lands on our all-time phone battery life listing by lasting nearly 11.5 hours on a unmarried charge in our battery test. Both the six.vii-inch Galaxy S21 Plus and half dozen.2-inch Galaxy S21 didn't fare as well, tapping out just before the x-hr marking. That's nigh average for a smartphone.
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Nosotros test batteries by taking a fully charged phone and setting its display to 150 nits of brightness. Nosotros and then have the phone surf the web continuously over a cellular connection until it runs out of juice, timing the results. Here's a closer await at how the Galaxy S21, Milky way S21 Plus and Galaxy S21 Ultra fared on our examination
Samsung Galaxy S21 battery life results
| Battery size | Bombardment test issue (Hrs;Mins) | |
| Samsung Galaxy S21 Ultra (60Hz/Adaptive) | five,000 mAh | 11:25/x:07 |
| Samsung Milky way S21 Plus (60Hz/Adaptive | 4,800 mAh | 9:53/9:43 |
| Samsung Galaxy S21 (60Hz/Adaptive | iv,000 mAh | 9:53/half dozen:31 |
| iPhone 12 Pro Max | iii,678 mAh | x:53 |
| iPhone 12 | 2,815 mAh | 8:25 |
| Samsung Galaxy Note twenty Ultra (60Hz/Adpative) | 4,500 mAh | 10:26/7:59 |
| OnePlus 8T (60Hz/120Hz) | 4,500 mAh | 10:49/9:58 |
| Google Pixel 5 (60Hz/90Hz) | 4,000 mAh | 10:00/9:29 |
The Milky way S21 features a 4,000 mAh bombardment while Samsung put a 5,000 mAh power pack into the Milky way S21 Ultra. These battery sizes are identical to what Samsung used in the Milky way S20 and S20 Ultra. The Galaxy S21 Plus gets a bump from last year's S20 Plus, going from a 4,500 mAh power pack to a larger 4,800 mAh.
Even without a change in battery size, you'd expect to see some improvement, as the Snapdragon chipset 888 powering the new phones is supposed to be more efficient than concluding year's chipset.
We certainly saw that with the Milky way S21 Ultra, which lasted eleven hours, 25 minutes on our battery test.
There's one caveat nigh that S21 Ultra event — we got information technology by turning off the phone'south adaptive display, which meant the display had a 60Hz refresh rate. One of the marquee features of the S21 lineup is an adaptive display that adjusts the refresh charge per unit depending on whatever chore you're doing.
Since web browsing is one of those tasks that benefits from a faster brandish rate, the screen is probable to stay closer to its 120Hz maximum, which would drain the bombardment faster. Indeed, when nosotros turned on the adaptive display characteristic, the S21 Ultra's time on our battery test dropped to 10 hours and 7 minutes — a petty bit ameliorate than average for a smartphone.
The Milky way S21'due south fourth dimension of 9 hours, 53 minutes likewise came with the refresh charge per unit set to 60Hz. Turning on the adaptive brandish, the Milky way S21 took an even bigger striking, dropping to half-dozen hours, 31 minutes on our exam. That's a disappointing result whatsoever way y'all want to look at it.
The S21 Plus proved to be a curiosity. Even with its bigger battery, it turned in an identical time to the S21, finishing at 9 hours, 53 minutes at the 60Hz setting. Turning on the adaptive refresh rate simply dropped the effect by 12 minutes, the smallest deviation we saw by far.
Galaxy S21 battery life versus other phones
Looking at contempo flagship devices, the Galaxy S21 Ultra compares quite well, specially if you use that 11.5-hour time recorded at the 60Hz setting.
The Galaxy S21 Ultra outlasts many recent flagships, with only the iPhone 12 Pro Max getting within a one-half-60 minutes of its time. The Milky way Notation 20 Ultra is particularly of interest as its 10.5-hour result was also at 60Hz. Turning the Notation 20 Ultra's adaptive brandish characteristic on reduced the time by 2.5 hours, so obviously the S21 Ultra does a better task at conserving ability fifty-fifty with a high refresh charge per unit hitting its bombardment.
All of the above phones are 5G devices, and the faster networking standard can really put a hit on battery life. That said, the S21 Ultra isn't the longest-lasting 5G phone we've tested. That honor goes to the LG V60 ThinQ 5G, which held out for virtually 13 hours. (Too bad LG is reportedly nixing a successor.) We too accept a few midrange 5G phones on our longest-lasting phone listing, as those devices tend to prioritize longevity over performance.
Source: https://www.tomsguide.com/news/samsung-galaxy-s21-battery-tests
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