Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Seriously lacking in important ways

This phone has Bluetooth, a camera, and world compatibility, but misses out on everyday user-friendlyness. The phone "operating system" has major oversights and is horribly slow, often taking 1-2 seconds to respond to button presses. Moreover, the phone often displays erratic behavior, such as "rebooting" or hanging up on an incoming call upon opening. One glaring flaw is the recharging process. You would think that plugging a phone in for recharging would allow you to continue to make calls when the battery is dead. This is not the case; apparently the phone only draws power from its battery and cannot switch to wall current when plugged in. Thus the only solution is to recharge the phone before making the call. Don't be fooled by the features, and get a phone whose everyday use is more convenient.