We put the Honor X7d (400 Smart) through our rigorous SBMARK Battery test suite to measure its performance in terms of battery life, charging and efficiency. In the results of these tests, we will analyze how it performed in a series of tests and in several common use cases.
Overview
Key Specifications:
- Battery capacity: 6500mAh
- 35W charger
- 6.77 inch TFT LCD display, 720 x 1610, 120 Hz
- Qualcomm Snapdragon 685 (6nm)
- Tested ROM/RAM combination: 128GB + 6GB
Pro
- Excellent overall autonomy performance
- Power consumption well optimized for most use cases
Against
- Long charging time
- The UI slightly estimates the remaining battery level and shows 20% when the actual charge is less
The HONOR X7d (400 Smart), just like its 5G brother, obtains the best scores in our database, thanks to its remarkable autonomy and strong efficiency. These excellent results allow it to secure top subscores in both categories, confirming HONOR’s focus on battery-centric devices.
Featuring a large 6500mAh battery, the HONOR X7d offers exceptional endurance, easily lasting more than four days with moderate use. It works particularly well in gaming and video playback scenarios, where its low power consumption ensures consistent results. Compared to the HONOR X7d 5G, the 4G version stands out for even better battery life and overall efficiency, making it the stronger choice for those who prioritize long-lasting performance.
Charging performance is average, with approximately 1 hour and 10 minutes to reach 80%, and a full charge takes 1 hour and 36 minutes. That said, a short 5 minute charge still provides around 6 hours of use, which remains handy for quick boosts when needed.
Overall, the HONOR X7d proves to be a highly optimized endurance device, with best-in-class results in terms of battery life and efficiency, and a clear advantage for users looking for maximum battery life over faster charging.
Test summary
Information on SBMARK battery tests: For scoring and analysis in our smartphone battery reviews, SBMARK engineers perform a series of objective tests over a period of one week both indoors and outdoors. (See our introduction and how we test articles for more details on our smartphone battery protocol.)
The following section compiles key elements of our comprehensive testing and analysis performed in SBMARK laboratories. Detailed performance evaluations in the form of reports are available upon request. Don’t hesitate to contact us.
| Drums | Charger | Wireless | Display | Processor | |
|---|---|---|---|---|---|
| Honor 400 Smart 5G (x7d 5G) | 6500mAh | 35W (not included) |
– | TFT LCD 720×1610 |
Qualcomm Snapdragon 6s Gen 3 |
| Motorola Edge 60 Pro | 6000mAh | 90W (not included) |
15W | POLED 1220 x 2712 |
MediaTek Dimensity 8350 |
| Oppo Find X8 | 5630mAh | 80W (included) |
50W | AMOLED 1256×2760 |
MediaTek Dimensity 9400 |
How the autonomy score is composed
The battery life score is made up of three performance subscores: Home/Office, On the Go, and Calibrated Use Cases. Each subscore includes the results of a full range of tests to measure battery life in all types of real-life scenarios.
158 hours
Light usage
Active: 2h30/day
109h
Moderate use
Active: 4 hours a day
67 hours
Intense use
Active: 7 hours a day
A robot housed in a Faraday cage performs a series of touch-based user actions during what we call our “typical usage scenario” (TUS) – making calls, streaming video, etc. – 4 hours of active use over a 16-hour period, plus 8 hours of “sleep.” The robot repeats this series of actions every day until the device runs out of power.
Moving
190
Samsung Galaxy M51
Samsung Galaxy M51
Using a smartphone on the move puts a strain on battery life due to additional “hidden” needs, such as the continuous signaling associated with cellular network selection. SBMARK Battery experts take the phone outdoors and perform a series of well-defined activities following the same three-hour travel itinerary (walking, taking the bus, subway…) for each device
For this series of tests the smartphone returns to the Faraday cage and our bots repeatedly perform actions related to a specific use case (such as gaming, video streaming, etc.) at a time. Starting from an 80% charge, all devices are tested until they have consumed at least 5% of their battery charge.
In charge
108
Realme GT Neo 5 (240W)
Realme GT Neo 5 (240W)
How the charging score is made up
Charging is a full part of the overall battery experience. In some situations where battery life is at its lowest, knowing how fast you can charge becomes a concern. The SBMARK Battery Charging Score is made up of two sub-scores, (1) Full Charge and (2) Quick Boost.
Full charge
81
Realme GT Neo 5 (240W)
Realme GT Neo 5 (240W)
Full charge tests evaluate the reliability of the battery charge indicator; measure how long and how much energy the battery takes to charge from zero to 80% capacity, from 80 to 100% as shown by the user interface, and until actually fully charged.
The charging curves, in wired and wireless mode (if available) show the evolution of the battery level indicator as well as the energy consumption in watts during the charging phases towards full capacity.
The time to full charge table breaks down the time needed to reach 80%, 100%, and full charge.
Quick push
144
Realme GT Neo 5 (240W)
Realme GT Neo 5 (240W)
With the phone at different charge levels (20%, 40%, 60%, 80%), the Quick Boost tests measure how much charge the battery receives after being plugged in for 5 minutes. The graph here compares the average battery life gain with a 5 minute fast charge.
How the efficiency score is composed
The SBMARK Energy Efficiency Score is composed of two subscores, charging speed and discharging speed, both of which combine data obtained during a typical robot-based usage scenario, calibrated tests, and charging evaluation, taking into account the battery capacity of the device. SBMARK calculates the annual energy consumption of the product, shown in the graph below, which is representative of the overall efficiency during a charge and when in use.
Charge Up
127
Nubia Red Magic 7 Pro
Nubia Red Magic 7 Pro
The charging subscore is a combination of four factors: the overall efficiency of a full charge, related to the amount of energy needed to fill the battery compared to the energy 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 the phone is fully charged and still connected to the charger; and the residual consumption of the charger itself, when the smartphone is disconnected from it. The graph below shows the overall efficiency of a full charge in %.
Discharge
180
Apple iPhone 14 Pro
Apple iPhone 14 Pro
The discharge subscore evaluates how quickly a battery discharges during a test, which is independent of the battery’s capacity. It is the ratio between the capacity of a battery divided by its autonomy. A small capacity battery may have the same battery life as a large capacity battery, indicating that the device is well optimized, with a low discharge rate.
Start a new Thread