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AudioWe put the Samsung Galaxy A33 5G 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
- 25W charger (not included)
- 6.4-inch, 1080 x 2400, 90 Hz, AMOLED display
- Samsung Exynos 1280 (5 nm)
- Tested ROM / RAM combination: 128 GB + 6 GB
Scoring
Sub-scores and attributes included in the calculations of the global score.
Samsung Galaxy A33 5G
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.
152nd
39th
Pros
- Good autonomy when streaming videos
- Good autonomy when using camera on the go
Cons
- Less than 2 days of autonomy in moderate usage
- Very low autonomy when using social apps on the go
- Low gain in autonomy after 5-minute charge
- Very high discharge current during music streaming and gaming
The Samsung Galaxy A33 5G struggled in almost all of our battery tests, placing it among the below-average performers of our entire database. Poor overall efficiency, mainly due to its high discharge current and its low charge efficiency, as well as its weak charging performance (especially in the autonomy gain after a 5-minute charge) all contributed to the A33 5G’s weak score.
Autonomy was low at less than two days, even when the device was used moderately. Whether scrolling on social apps on the go, or when streaming music and gaming in calibrated mode, the device struggled.
When comparing the Galaxy A33 5G with other similarly priced devices in the Advanced segment ($200 – $399), it did not fare better. It had the lowest autonomy score and stands second to last in efficiency, weighed down by the lowest discharge subscore. Even an average charging experience could not lift the Samsung Galaxy A33 5G from its last-place ranking in this price segment.
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 A33 5G | 5000mAh | 25W (not included) |
- | Super AMOLED 1080 x 2400 |
Samsung Exynos 1280 |
| OnePlus Nord 2 5G | 4500mAh | 65W (included) |
- | OLED 1080 x 2400 |
MediaTek Dimensity 1200 5G |
| Xiaomi Mi 11 Lite 5G | 4250mAh | 33W (included) |
- | OLED 1080 x 2400 |
Qualcomm Snapdragon 780G |
Autonomy
Samsung Galaxy A33 5G
195
Autonomy score is composed of three performance sub-scores: Stationary, 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)
141st
Battery Life (moderate)
40th
Home/Office
Samsung Galaxy A33 5G
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 A33 5G
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 A33 5G
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 A33 5G
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 A33 5G
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.
Two charts here below illustrate the full charge performance of the smartphone: (1) 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.
(2) The time to full charge chart breaks down the necessary time to reach 80%, 100% and 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.
The time to full charge chart breaks down the necessary time to reach 80%, 100% and full charge.
Quick boost
Samsung Galaxy A33 5G
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 A33 5G
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 A33 5G
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 A33 5G
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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