This looks like a nice deal from Trackimo for their new Guardian tracker with a free power bank. My old 2g one is obsolete so might opt for this one. If you are a previous Trackimo user, you might have gotten this email already.
I looked at that design but it did not look like it would be easy to mount on my mavic pro so I opted for the one most others have purchased. If you want a tracker for a use other than mounting on a drone it will probably serve you well.
This is the one I purchased. They were offering a $20.00 off at purchase. It's 3G.