3 “Bluetooth Uses Tons of Power”
Let’s be clear: features like Bluetooth and Wi-Fi will use up some extra battery life. But the amount they do use doesn’t really justify turning them off in your day-to-day routine (Apple mows this and has made Bluetooth and Wi-Fi stay on in iOS 11).
This is because Bluetooth and Wi-Fi standards have become much more battery-efficient over the years. And when it comes to apps using Location Services, they generally only use them for certain features or when they’re actively open. Disabling Bluetooth, Wi-Fi and Location Services will save you maybe 30 minutes of battery — at best.