The purpose of Phone Buddy is to notify you on your Watch when you lose connection with your Phone.
Passive mode runs in the background and checks for connection when possible. Often, Passive mode can notify you of phone connection loss within a few minutes. Passive mode is free to use.
Active mode uses location on your Watch and checks for connection when location changes. In this mode, you can expect to be notified of phone connection loss as you walk away from your phone. We recommend using this mode every day. Active mode is a subscription feature.
Phone Buddy for Watch requires iOS devices running iOS 12 or later paired with a WatchOS device running WatchOS 5 or later.
In testing, we have observed less than 5% battery impact on average with all-day location use on Watch (Phone is not impacted at all). Other factors such as the Watch's temperature, battery health, and other apps running in the background can also affect battery performance. All-day battery life was tested on an Watch Series 3.
There are a few reasons Phone Buddy would post a disconnect notification when your Phone was still nearby:
1) Your Phone is turned off or out of battery. If your Phone is off, Phone Buddy cannot verify connection and will post a disconnect notification.
2) Your Phone is in Airplane mode. When in Airplane mode, Phone radio's are disabled so Phone Buddy cannot verify connection and will post a disconnect notification.
3) Your Phone is in another room and a thick wall, a broadcasting 2.4ghz radio, or microwave may cause interference with Bluetooth resulting in temporary connection loss.
These occurances should be rare, if you are experiencing false disconnect notifications regularly please contact support using the link below.