1d57:ac02 — ViFit Activity Tracker

Xenta

Vendor ID: 1d57
Product ID: ac02
Combined: 1d57:ac02
Decimal: 7511:44034

What is this device?

This is the USB identifier for a ViFit Activity Tracker manufactured by Xenta. The vendor ID 1d57 is registered to Xenta with the USB Implementers Forum, and ac02 is the product ID that Xenta assigned to this particular model. When you run lsusb on Linux, this device appears as 1d57:ac02 Xenta ViFit Activity Tracker.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 1d57:ac02 Xenta ViFit Activity Tracker

You can filter directly with lsusb -d 1d57:ac02, or get the full descriptor dump with lsusb -v -d 1d57:ac02. Kernel messages from dmesg show the same pair as idVendor=1d57, idProduct=ac02.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_1D57&PID_AC02
USB\VID_1D57&PID_AC02&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_1D57&PID_AC02"

macOS

$ system_profiler SPUSBDataType
    ViFit Activity Tracker:
      Product ID: 0xac02
      Vendor ID: 0x1d57  (Xenta)

Driver help

Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.

Raw usb.ids entry

The exact lines this page is generated from, in the upstream source file:

1d57  Xenta
	ac02  ViFit Activity Tracker

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