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We put the Honor X7b 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: 6000 mAh
- 35W charger (might be included)
- 6.801-inch, 1080 x 2412, 90 Hz, LCD display
- Qualcomm SDM680 (6 nm)
- Tested ROM / RAM combination: None GB + 8 GB
Scoring
Sub-scores and attributes included in the calculations of the global score.
Honor X7b
195
198
224
212
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.
3rd
1st
Pros
- Excellent outdoor autonomy
- Longest home/office autonomy tested so far, reaching 5 days
- Very low discharging current when the phone is active
- Low residual power drain while the device is still plugged in
Cons
- More than 2 hours and 30 minutes to fully charge the device
- Relatively low charge-up efficiency
- Poor autonomy gain from a quick boost charge
The Honor X7b demonstrated an outstanding battery experience in our tests, reaching a global score of 151. It outperformed its predecessor, the Honor X7a, with improved autonomy and charging performances.
The Honor X7b is equipped with a high-capacity battery of 6000 mAh, which lasted almost four days (95 hours) when used moderately. The device was well-optimized for each use case thanks to its very low discharging current. Its impressive endurance in each individually tested case earned the device the top spot in autonomy in our database. For example, in the home/office autonomy test, the Honor X7b’s battery lasted for five days, the longest we have recorded so far.
The Honor X7b’s 35W charger is relatively modest for a 6000 mAh battery. It took the device more than 2 hours and 30 minutes to fully replenish the battery, placing it in the bottom half of our database. A quick 5-minute charging boost helped the device gain more than 5 hours of autonomy, an improvement of 20% over its predecessor.
The charge-up efficiency of Honor X7b was 74.4%, which was not very efficient when compared to other tested devices. On the other hand, the residual power drain of Honor X7b was very low when the device was still plugged into the charger.
Compared to other devices in the Essential segment, the Honor X7b ranked at the top. The device’s excellent battery life and a well-optimized user experience secured a spot among the very best within our battery ranking.
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 | |
|---|---|---|---|---|---|
| Honor X7b | 6000mAh | 35W (included) |
- | LCD 1080 x 2412 |
Qualcomm Snapdragon 680 |
| Honor X7a | 6000mAh | 23W (included) |
- | LCD 720 x 1600 |
Mediatek Helio G37 |
| Xiaomi Redmi Note 12 5G | 5000mAh | 33W (included) |
- | AMOLED 1080 x 2400 |
Qualcomm Snapdragon 4 Gen 1 |
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)
1st
Battery Life (moderate)
1st
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
Honor X7b
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
Honor X7b
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
Honor X7b
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
Honor X7b
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%
146th
Charging Time 0-80%
4th
Quick boost
Honor X7b
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
Honor X7b
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
Honor X7b
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
Honor X7b
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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