The FiiO BT11 is a tiny USB-C adapter that brings support for high-resolution Bluetooth codecs to your iPhone for the first time.
He has tested 160 phones over 16 years ... If you use a MagSafe charger with a 30 W adapter, your iPhone 16 will charge about as fast as it does when charging via USB-C cable.
Variables like screen brightness and refresh-rate also affect battery life, as do Wi-Fi and Bluetooth connections ... best dumbphones and the best cordless home phones to find the best one ...