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We put the Oppo A77 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
- 33W charger (included)
- 6.56-inch, 720 x 1612, 90 Hz, LCD display
- MediaTek Dimensity 810 (6 nm)
- Tested ROM / RAM combination: 64 GB + 4 GB
Scoring
Sub-scores and attributes included in the calculations of the global score.
Oppo A77 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.
19th
7th
Pros
- Outstanding performance during typical usage scenario
- Very low consumption during idle time
- Excellent performance on the go, especially when scrolling on social apps and using the camera
- Excellent autonomy when calling in calibrated mode
- Decent autonomy when streaming music and video
- Low discharge currents in almost all use cases
Cons
- Charging time longer than average
- High discharge current when gaming
The Oppo A77 5G showed a very well-balanced performance in the battery protocol, earning it a top three ranking in the DXOMARK battery database. Its strong results were due to an outstanding autonomy showing when tested in factory default mode. Its performance in a typical usage scenario was one of the best we’ve tested so far, with very low consumption during the day and excellent management during the night (1.25% lost on average). The Oppo A77 5G also showed excellent autonomy during the on-the-go tests, especially when scrolling on social apps (which came in as the best autonomy tested to date), taking photos and videos, and using GPS navigation. However, when tested in calibrated mode, its autonomy in tests was near the average, but it did not match the excellent results in factory default mode. The device doesn’t seem to be optimized for a brightness level of 200 nits. The autonomy when calling, however, was exceptional, and much better than in tests on-the-go, where the device seemed to have more trouble searching and reaching antennas.
The 33W charger took 1 hour and 33 minutes to fully charge the large 5000 mAh battery, which is slightly longer than the average charging time in our database. However, a 5-minute charge gave the device more than 5 hours of autonomy on average. Performance was average when it came to charge and adapter efficiency, as well as the charger residual consumption.
Discharge currents were low across all use cases, especially during the typical usage scenario and during the calling test in calibrated mode (the lowest discharge current to date). However, the gaming test drained a lot of power, indicating that the device is not optimized for playing video games.
Compared with other devices in the Advanced segment ($200 to $399), the well-balanced Oppo A77 5G ranks at the very top. It has excellent autonomy and efficiency, and decent charging performance. Its autonomy when gaming, streaming music, and calling on the go, however, remains below average.
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 | |
|---|---|---|---|---|---|
| Oppo A77 5G | 5000mAh | 33W (not included) |
- | LCD 720 x 1612 |
MediaTek Dimensity 810 |
| Xiaomi Redmi Note 11S 5G | 5000mAh | 33W (included) |
- | IPS 1080 x 2400 |
Mediatek Dimensity 810 |
| Honor Magic4 Lite 5G | 4800mAh | 66W (included) |
- | LCD 1080 x 2388 |
Qualcomm Snapdragon 695 5G |
Autonomy
Oppo A77 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)
10th
Battery Life (moderate)
6th
Home/Office
Oppo A77 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
Oppo A77 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
Oppo A77 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
Oppo A77 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
Oppo A77 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.
Charging Time 0-80%
101st
Charging Time 0-80%
19th
Quick boost
Oppo A77 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
Oppo A77 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
Oppo A77 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
Oppo A77 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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