Xiaomi Mi A1 Review

21 October 2017, 15:10:10

Xiaomi Mi A1 Review
The device has been provided by LightInTheBox.com. You can buy it here.

Battery

Xiaomi Mi A1 is an Android One smartphone, hence there's nothing more than absolutely pure Android features on board. In the context of battery management, this means that there is no dedicated app and there isn't a single feature that allows you to manage your battery life. The default Battery menu from the settings includes only the Battery saver, monitor and app optimization. The Schedule power on & off feature can be found under the System group of settings. If you have activated the System UI Tuner, you can access the Power notification control features, which allows you to manage the notifications in the context of saving battery life by giving them a level from 1 to 5, 1 being the most restrictive.
The Mi A1 is powered by a 3080 mAh Li-Pol non-removable battery that arrives with a 5V/2A fast charger (EU plug). All battery tests we run on the devices we review are developed by us and performed with the screen of the device being calibrated to 200 cd/m2. Battery saving features are disabled. The battery of our review unit charges in full from 0% to 100% for 2 hours. The process passes through several stages but roughly, it develops fairly quickly for the first 1 hour and 30 minutes during which the battery reaches 90% of its capacity (an average of 1% per minute). After that, charging slows down significantly and the last 30 minutes are used for charging the last 10%. The battery temperature starts from 27°C and in 5 minutes reaches 30°C. It continues increasing and reaches its peak of 35-36°C after another 30 minutes. It starts to decrease after the battery reaches 65% of its capacity and at the end the temperature measures 26°C. The browsing test shows a result of 8 hours and 37 minutes. Discharging develops with one and the same speed. At the same time, the battery temperature remains impressively low and stable. It begins with 30°C only to rise to 31-32°C, occasionally 33°C and maintains this level until the end. The video test for battery life uses a 1080p video at 30 fps with a ~20Mbps rate. The battery of our review unit discharges from 100% to 0% in 10 hours and 42 minutes. The process follows the same pattern as the one from the browsing test. Discharging is straightforward and the battery temperature starts from 27°C, reaches 31°C in half an hour and stays there until the end. For the 3D Graphics/Gaming test, the Epic Citadel's tech demo in its Guided Tour mode is used. The battery depletes in 7 hours and 10 minutes, again after a process that develops with one and the same speed. The battery temperature starts from 27°C, reaches 30°C in 15 minutes and gradually rises to 34°C, which it maintains until the end.
The above photos of our Mi A1 review unit are taken with a FLIR thermal camera. The left photo shows the device's temperature during charging. The hottest area of the smartphone is the top right one, where the peak temperature measures 36°C (the brightest spot). The second photo depicts the device's temperature during our 3D battery life test. In this case, the device gets warm in the upper part of its body (centre-right area) and in the area of the navigation bar where the peak temperature is measured 35.5°C.

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