One of the biggest battery drainers for any smartphone is the always-on display. Companies regularly tell you that this display setting only drains about 1% to 2% an hour, but let's be honest -- it's always way more. It may be nice to glance at your phone while it sits on a table to check the time, but it's probably not worth sacrificing battery life.
Thanks to the way Google's for years now been deconstructing Android and pulling OS-level pieces out of the operating system itself - so they exist as regular ol' apps and can consequently be updated quickly, frequently, and in a way that reaches everyone instantly, regardless of what phone or carrier they're using - even Android phones from eight years ago get updates numerous times a year that are all virtually equivalent to an entire iOS operating system rollout.
Your mobile phone is a treasure trove of personal and confidential information. That's why it's a prime target for hackers who want to compromise or steal your data. Through malicious apps and websites, phishing attacks, and other threats, an attacker can gain control of your device through spyware. But how can you tell if your phone has been hacked or tapped?
Much of this information needs to be sent to the manufacturer to keep your device up to date and functioning properly. With that goal in mind, your phone might share any of the following tidbits: Device identifiers such as IMEI numbers, hardware serial numbers, and SIM details Telemetry data about the device's system status or health Service checks for push notifications and operating system updates Crash logs or diagnostic analytics The connectivity state, such as Wi-Fi vs. mobile Content updates, including news, social feeds, and synced emails
The data that a smartphone transmits in a continuous loop can be divided into two categories: legitimate data that maintains the functionality of the device, and sensitive data that is used for tracking, advertising and other purposes. It is not always clear which data falls into which category. For example, if your device sends diagnostic data and reports to the manufacturer or app developers, this may be necessary and important. However, it usually also requires your consent.