Battery life depends on the tracker type: compact keychain trackers advertise up to 12 months on a single charge, while wrist-style fitness trackers typically run for multiple days—commonly about 5–7 days—before needing to be recharged.
Water and dust protection varies by model: the compact keychain is listed with an IP66 rating, while several wrist-style fitness trackers are described as water-resistant or IP68-rated, which is generally intended for swimming and similar activities.
Keychain trackers offer precise location directions, an audible chime from a built-in speaker to help you find items, and alerts if you leave tracked items behind.
When paired with a phone, trackers can display call and text notifications, app notifications, and music controls. Some wrist-style trackers also support making and receiving calls and texts through the paired phone.
Trackers use Bluetooth for local connections. The compact keychain also relies on a device-finding network that combines ultra-wideband, GPS, Wi‑Fi, and cellular signals for broader location; some fitness trackers include built-in GPS or provide GPS capability when paired with a phone.
The compact keychain lists Bluetooth 5.4 LE range at about 20 meters indoors and up to about 50 meters outdoors.
