Endurance
The Desire Eye has room for a 2,400 mAh battery. That's not really big and it was just as exciting to see what kind of battery life this would lead to. With our average use, the device will last a good 1.5 days. This means that Gmail, WhatsApp and a number of social media are opened on a regular basis. We also check the news from time to time and occasionally make a phone call. Usually we have WiFi always on. Because of this, we dare to conclude that the Desire Eye can last 24 hours even with intensive use.
To increase endurance, there is the power saving mode which limits or disables CPU usage, screen brightness, vibration feedback and data connection. This mode turns on automatically when the battery level drops below 15% and cannot be adjusted. There is also the extreme power saving mode. It disables almost all functionality and keeps only the phone, messages, mail, calendar and calculator available. You can then set the percentage of this function at which it should turn on again. By the way, it feels like it takes a remarkably long time before the Desire Eye is fully charged.
Call quality
The calling application is called phonebook but that part will be discussed later in this review. There are five tabs and one of them is for phone. Via smartdial on the numeric keypad, the desired contact is quickly found. But it is also possible to open a QWERTY keyboard. Tabs on the left and right contain the logbook, favourites, all contacts and groups.
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A call can be answered automatically by bringing the device to your ear. The sound quality during a call is clear and distinct. Only the speaker mode sometimes seemed difficult to understand for our conversation partner.