Airplane Mode or DND: What is the best option to save phone battery?

Smartphones come equipped with Airplane mode and Do Not Disturb (DND) mode. Typically, Airplane mode is used during air travel or to disable wireless networks, ensuring there is no interference with the aircraft's communication systems; however, it can be used anywhere and at any time. DND mode, on the other hand, is generally used to silence notifications. Users often activate this mode when resting or during meetings.

**Which is better for battery life: Airplane mode or DND?**
Users often employ both modes to extend battery life. While DND mode offers only a marginal improvement in battery life, Airplane mode can significantly boost battery backup. Here, we explain in detail how both modes help extend a phone's battery life.

**Why is Airplane mode better for the phone's battery?**
Airplane mode is more effective at conserving battery life. It disables all radio connectivity on the phone—including the cellular modem, Wi-Fi, and Bluetooth—thereby reducing power consumption. Since radio communication is a major source of battery drain in smartphones, turning these features off saves power.

If you are in an area with poor network coverage, the battery drains rapidly because the phone's modem constantly searches for a signal. In contrast, DND mode does not disable connectivity; instead, it silences audio alerts and turns off haptic feedback (vibration).

Consequently, the phone neither makes a sound nor vibrates when a notification arrives, leading to a slight reduction in battery consumption. Therefore, if your goal is to save battery, using Airplane mode is the better choice compared to DND mode.

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