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DisplayWe put the Samsung Galaxy S24 through our rigorous DXOMARK Battery test suite to measure its performance in autonomy, charging and efficiency. In these test results, we will break down how it fared in a variety of tests and several common use cases.
Overview
Key specifications:
- Battery capacity: 4000 mAh
- 25W charger (not included)
- 6.2-inch, 1080 x 2340, 120 Hz, OLED display
- Qualcomm Snapdragon 8 Gen 3 (4 nm)
- Tested ROM / RAM combination: 128 GB + 8 GB
Scoring
Sub-scores and attributes included in the calculations of the global score.
Samsung Galaxy S24
Key performances
These key points are derived from the lab measurements during testing and do not figure into the overall score. The lab measurements, however, are used for the overall score.
125th
24th
Pros
- Great autonomy when streaming video and gaming
- Low discharge currents when testing with the screen on
- Decent wireless charging time
- Very low residual power drained by the wired charger
Cons
- Weak autonomy when listening to music and calling
- Poor autonomy when testing outdoor
The Samsung Galaxy S24’s global battery score was slightly lower than that of its predecessor Samsung Galaxy S23, due to a small decrease in autonomy and efficiency performance.
Equipped with a slightly bigger battery than its predecessor and the latest Snapdragon chipset, the Galaxy S24’s autonomy was below average, lasting slightly more than 2 days when used moderately, When testing specific usages, the results varied. Battery performance was also quite impressive when testing with the screen on such as streaming videos and gaming. However, the device struggled in music streaming and most of the outdoor activities.
The charging experience was mixed, but overall below average and little changed from the S23’s performance. Wired charging took longer than average at 1 hour and 39 minutes to fully replenish the battery. But wireless charging was slightly faster than average at 2 hours and 15 minutes. In any case, the autonomy recovered after a quick 5-minute boost was low at around 3 hours and 20 minutes, which was a contributing factor to its below-average charging score.
In efficiency, the Galaxy S24’s 4000 mAh battery, can be considered well-optimized in several aspects if we look at its discharge currents. The relatively low discharge currents when idling with the screen on, streaming video, and gaming gave support to the generally good autonomy. But the residual power drain of the wireless stand is very high, which drags down the efficiency performance of the device.
For a device in the Premium price range ($600 – $799), the Samsung Galaxy S24 ranked slightly below average in our database, held back by its results in autonomy and by the inconsistent charging experience.
Test Summary
About DXOMARK Battery tests: For scoring and analysis in our smartphone battery reviews, DXOMARK engineers perform a variety of objective tests over a week-long period both indoors and outdoors. (See our introductory and how we test articles for more details about our smartphone Battery protocol.)
The following section gathers key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Detailed performance evaluations under the form of reports are available upon request. Do not hesitate to contact us.
| Battery | Charger | Wireless | Display | Processor | |
|---|---|---|---|---|---|
| Samsung Galaxy S24 | 4000mAh | 25W (not included) |
15W | Dynamic AMOLED 2X 1080 x 2340 |
Samsung Exynos 2400 |
| Samsung Galaxy S23 | 3900mAh | 25W (not included) |
15W | AMOLED 1080 x 2340 |
Qualcomm Snapdragon 8 Gen 2 |
| Apple iPhone 15 | 3367mAh | 20W (not included) |
15W | AMOLED Retina XDR 1179 x 2556 |
Apple A16 Bionic |
Autonomy
Samsung Galaxy S24
195
Autonomy score is composed of three performance sub-scores: Home / Office, On the go, and Calibrated use cases. Each sub-score comprises the results of a comprehensive range of tests for measuring autonomy in all kinds of real-life scenarios.
Battery Life (moderate)
131st
Battery Life (moderate)
23rd
Home/Office
Samsung Galaxy S24
221
A robot housed in a Faraday cage performs a set of touch-based user actions during what we call our “typical usage scenario” (TUS) — making calls, video streaming, etc. — 4 hours of active use over the course of a 16-hour period, plus 8 hours of “sleep.” The robot repeats this set of actions every day until the device runs out of power.
On the go
Samsung Galaxy S24
195
Using a smartphone on the go takes a toll on autonomy because of extra “hidden” demands, such as the continuous signaling associated with cellphone network selection, for example. DXOMARK Battery experts take the phone outdoors and perform a precisely defined set of activities while following the same three-hour travel itinerary (walking, taking the bus, the subway…) for each device
Calibrated
Samsung Galaxy S24
198
For this series of tests, the smartphone returns to the Faraday cage and our robots repeatedly perform actions linked to one specific use case (such as gaming, video streaming, etc.) at a time. Starting from an 80% charge, all devices are tested until they have expended at least 5% of their battery power.
Charging
Samsung Galaxy S24
218
Charging is fully part of the overall battery experience. In some situations where autonomy is at a minimum, knowing how fast you can charge becomes a concern. The DXOMARK Battery charging score is composed of two sub-scores, (1) Full charge and (2) Quick boost.
Full charge
Samsung Galaxy S24
224
Full charge tests assess the reliability of the battery power gauge; measure how long and how much power the battery takes to charge from zero to 80% capacity, from 80 to 100% as shown by the UI, and until an actual full charge.
Charging Time 0-80%
94th
Charging Time 0-80%
28th
Quick boost
Samsung Galaxy S24
212
With the phone at different charge levels (20%, 40%, 60%, 80%), Quick boost tests measure the amount of charge the battery receives after being plugged in for 5 minutes. The chart here compares the average autonomy gain from a quick 5-minute charge.
Efficiency
Samsung Galaxy S24
154
The DXOMARK power efficiency score consists of two sub-scores, Charge up and Discharge rate, both of which combine data obtained during robot-based typical usage scenario, calibrated tests and charging evaluation, taking into consideration the device’s battery capacity. DXOMARK calculate the annual power consumption of the product, shown on below graph, which is representative of the overall efficiency during a charge and when in use.
Charge up
Samsung Galaxy S24
205
The charge up sub-score is a combination of four factors: the overall efficiency of a full charge, related to how much energy you need to fill up the battery compared to the energy that the battery can provide; the efficiency of the travel adapter when it comes to transferring power from an outlet to your phone; the residual consumption when your phone is fully charged and still plugged into the charger; and the residual consumption of the charger itself, when the smartphone is disconnected from it. The chart here below shows the overall efficiency of a full charge in %.
Discharge
Samsung Galaxy S24
194
The discharge subscore rates the speed of a battery’s discharge during a test, which is independent of the battery’s capacity. It is the ratio of a battery’s capacity divided by its autonomy. A small-capacity battery could have the same autonomy as a large-capacity battery, indicating that the device is well-optimized, with a low discharge rate.
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