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Samsung Galaxy S24 Ultra
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Samsung Galaxy S24 Ultra Battery test

OTHER AVAILABLE TESTS FOR THIS DEVICE

We put the Samsung Galaxy S24 Ultra 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: 5000 mAh
  • 45W charger (not included)
  • 6.8-inch, 1440 x 3120, 120 Hz, OLED display
  • Qualcomm Snapdragon 8 Gen 3 (4 nm)
  • Tested ROM / RAM combination: 256 GB + 12 GB

Scoring

Sub-scores and attributes included in the calculations of the global score.

Samsung Galaxy S24 Ultra
Samsung Galaxy S24 Ultra
130
battery
129
Autonomy
121

221

112

195

152

198

127
Charging
127

224

127

212

124

205

147

194

Key performances

Charging Time
2 days 8h
Battery life
Charging Time
0h38
80% Charging time
Charging Time
1h27
Full charging time
Quick Boost
4h22 autonomy
after 5-minute charge

Pros

  • Low discharging currents in most test cases
  • Great autonomy in individual test cases
  • Excellent wired charger efficiency

Cons

  • Poor autonomy while using social apps outdoors
  • Relatively less autonomy regained from 5-minutes quick charging

The Samsung Galaxy S24 Ultra offered a satisfying battery experience during our tests, ranking in the top half of our database. However, compared to its predecessor, the Samsung Galaxy S24 Ultra lost 12 points due to the weaker showing in autonomy and charging.

The Samsung Galaxy S24 Ultra has a 5000 mAh battery, offering 56 hours of autonomy under moderate usage. The device performed impressively in individual test cases, especially when streaming videos, gaming, and idling with the screen on. However, the autonomy declined during our typical usage scenario and on-the-go tests, indicating that the device was not very well optimized.

The charging experience of Samsung Galaxy S24 Ultra ranked slightly over the average among all our tested devices but still came behind the S23 Ultra (Snapdragon). The recommended 45W charger needed 1 hour and 27 minutes to fully charge the battery. The wireless charging duration of 2 hours and 9 minutes was also around the average. On the other hand, the device struggled in the five-minute quick charge test, which yielded only  4 hours and 22 minutes of additional autonomy.

The Samsung Galaxy S24 Ultra’s charge-up efficiency was 75.7%, which is relatively less efficient when compared with other devices. However, the residual power drain was lower than average, regardless of whether the device was plugged in or not. The Samsung Galaxy S24 Ultra’s discharging currents were also generally very low in our individual test cases.

Compared to other devices in the Ultra-Premium segment, the Samsung Galaxy S24 Ultra still had a good showing thanks to its autonomy and efficiency performance.

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 Ultra 5000mAh 45W
(not included)
15W Dynamic AMOLED 2X
1440 x 3120
Samsung Exynos 2400
Samsung Galaxy S23 Ultra 5000mAh 45W
(not included)
15W AMOLED
1440 x 3088
Qualcomm Snapdragon 8 Gen 2
Apple iPhone 15 Pro Max 4441mAh 27W
(included)
15W AMOLED Retina XDR
1290 x 2796
Apple A17 Pro

Autonomy

129

Samsung Galaxy S24 Ultra

195

Honor X7b
How Autonomy score is composed

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.

Light Usage
81h
Light Usage
Active: 2h30/day
Moderate Usage
56h
Moderate Usage
Active: 4h/day
Intense Usage
34h
Intense Usage
Active: 7h/day

Home/Office

121

Samsung Galaxy S24 Ultra

221

Honor X7b

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.

Typical Usage Scenario discharge curves

On the go

112

Samsung Galaxy S24 Ultra

195

Samsung Galaxy M51

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

Autonomy for on the go use cases (full charge)

Calibrated

152

Samsung Galaxy S24 Ultra

198

Samsung Galaxy M51

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.

Autonomy for calibrated use cases (full charge)

Charging

127

Samsung Galaxy S24 Ultra

218

Realme GT Neo 5 (240W)
How Charging score is composed

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.

Wired
Wired
69%
in 30 min
0h38
0 - 80%
1h27
Full charge
Wireless
Wireless
24%
in 30 min
1h37
0 - 80%
2h09
Full charge

Full charge

127

Samsung Galaxy S24 Ultra

224

Realme GT Neo 5 (240W)

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.

Power consumption and battery level during full charge
The charging curves, in wired and wireless (if available) showing the evolution of the battery level indicator as well as the power consumption in watts during the stages of charging toward full capacity.
Power consumption and battery level during wireless full charge
The charging curves, in wired and wireless (if available) showing the evolution of the battery level indicator as well as the power consumption in watts during the stages of charging toward full capacity.
Time to full charge
Time to full charge

Quick boost

127

Samsung Galaxy S24 Ultra

212

Realme GT Neo 5 (240W)

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.

Average autonomy gain for a 5 minute charge (wired)

Efficiency

139

Samsung Galaxy S24 Ultra

154

Oppo Reno6 5G
How Efficiency score is composed

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.

Annual Consumption Samsung Galaxy S24 Ultra
4.6 kWh
Efficient
Good
Bad
Inefficient

Charge up

124

Samsung Galaxy S24 Ultra

205

Nubia RedMagic 7 Pro

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 %.

Overall charge efficiency

Discharge

147

Samsung Galaxy S24 Ultra

194

Apple iPhone 14 Pro

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.

Average discharge current

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