We put the Crosscall Stellar-X5 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: 4500mAh
- 18W charger (not included)
- 6,497-inch LCD display, 1080 x 2400, 120 Hz
- Qualcomm QCM5430 FP2 (6nm)
- Tested ROM/RAM combination: 128GB + 8GB
Pro
- Good autonomy when used both indoors and outdoors
- Low discharge currents in most uses
Against
- High discharge currents when the screen is calibrated to 200 nits in idle and video modes
- Slow charging: takes 1 hour and 20 minutes to recover 80% battery capacity and 3 hours for a full charge
- Poor autonomy recovered with a 5-minute quick charge
The Crosscall Stellar-X5 showed average overall battery performance with good battery life and decent efficiency, but a poor charging experience.
When used moderately, the Stellar-X5 managed to last more than two and a half days, which is above the average in our database. The Stellar-X5 performed well during our typical usage scenario, but struggled during our testing when settings like screen brightness were calibrated.
The Stellar-X5’s charging experience was quite slow, with the 20W charger never delivering more than 18W. Using a wired charger, the device took more than 3 hours to reach a full charge. A quick 5-minute battery charge recovered an average of just over 2 hours and 30 minutes of battery life.
The overall efficiency of the device was slightly above average, thanks to low discharge currents in most uses, especially with the factory default settings.
Compared to other Ultra-premium devices ($800+), the Stellar-X5’s battery life was good, except when the settings were calibrated. However, the charging experience was too slow and was at the bottom of our database for this segment.
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 brings together 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 | |
|---|---|---|---|---|---|
| Crosscall Stellar-X5 | 4500mAh | 0W (not included) |
– | LCDIPS 1080 x 2400 |
QualcommQCM5430FP2 |
| Samsung Galaxy A55 5G | 5000mAh | 25W (not included) |
– | AMOLED 1080 x 2340 |
Exynos 1480 |
| OppoReno12 | 5000mAh | 80W (not included) |
– | AMOLED 1080 x 2412 |
MediaTek Dimensity 7300 – Energy |
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.
94 hours
Light usage
Active: 2h30/day
64 hours
Moderate use
Active: 4 hours a day
39h
Intense use
Active: 7 hours a day
Home/Office
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 the course of 16 hours. -a period of one hour, plus 8 hours of “sleep”. The robot repeats this series of actions every day until the device runs out of power.
Moving
118
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
Calibrated
106
Samsung Galaxy M51
Samsung Galaxy M51
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
91
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
80
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
103
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.
Efficiency
117
Oppo Reno6 5G
Oppo Reno6 5G
How the efficiency score is composed
The SBMARK Energy Efficiency Score is composed of two sub-scores, charging speed and discharging speed, which combine both data obtained during a typical robot-based usage scenario, calibrated tests and charging evaluation, taking into account 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
105
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
123
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.
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