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DisplayWe put the Samsung Galaxy Z Flip4 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: 3700 mAh
- 25W charger (not included)
- 6.7-inch, 1080 x 2640, 120 Hz, OLED display
- Qualcomm Snapdragon 8+ Gen 1 (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 Z Flip4
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.
99th
21st
Pros
- Decent charger efficiency
- Very low residual consumption of the charger
- Low discharge currents in calibrated mode
Cons
- Poor typical usage scenario, with 5% lost per night on average
- Weak autonomy in calibrated mode, especially when streaming music and gaming
- Very low autonomy on the go, especially when using GPS navigation
- Slow charging, with poor charge efficiency
- Very high residual consumption of the wireless charger itself
The Samsung Galaxy Z Flip4’s battery performance placed the device in the lower half of our database. It performed poorly in our autonomy tests, consuming a lot of power during idle phases and across all calibrated tests, especially music streaming and gaming. When used outside, it also showed a very low autonomy across all our use cases, especially when using GPS navigation.
The 25W charger took 2 hours and 4 minutes to fully charge the small 3700 mAh battery, which is longer than the average in our database. The overall charge efficiency was low, but the charger efficiency was decent. This charger consumed very little power when it was just plugged into a socket, or when the device was fully charged and still plugged in. The wireless charger didn’t do any better, taking 2 hours and 37 minutes to fully charge the device. The charge efficiency was really low, and the residual consumption of the wireless stand itself was the highest in our database to date.
The discharge currents were low on average, meaning that the device is well-optimized, except during idle time and music streaming.
When compared with devices from the Ultra-premium segment ($800+), the Samsung Galaxy Z Flip4 stays in the second half of our ranking, having a very low charging score, and the lowest on-the-go score to date. However, the efficiency score is excellent thanks to very low discharge currents.
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 Z Flip4 | 3700mAh | 25W (not included) |
15W | AMOLED Dynamic 2X 1080 x 2640 |
Qualcomm Snapdragon 8+ Gen 1 |
| Apple iPhone 14 Pro Max | 4323mAh | 20W (not included) |
15W | OLED 1290 x 2796 |
Apple A16 Bionic |
| Samsung Galaxy S22 Ultra (Snapdragon) | 5000mAh | 45W (not included) |
15W | AMOLED 2X 1440 x 3088 |
Qualcomm Snapdragon 8 Gen 1 |
Autonomy
Samsung Galaxy Z Flip4
182
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)
100th
Battery Life (moderate)
22nd
Home/Office
Samsung Galaxy Z Flip4
189
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 Z Flip4
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 Z Flip4
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 Z Flip4
181
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 Z Flip4
184
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%
80th
Charging Time 0-80%
19th
Quick boost
Samsung Galaxy Z Flip4
182
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 Z Flip4
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 Z Flip4
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 Z Flip4
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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