Read my evaluation before buying any tracker device

Previously I bought the Garmin Tracker, when it first came out and for years I had no complaints. However, the third party providing the tracking service dropped out and I was forced to find a replacement. I tried several other devices and was pretty disappointed in either the hardware or tracking function. Before this device, the best was when
I bought a couple of Pods and was pleased with the hardware, battery performance and ergonomics. However, the realtime tracking left lots to be desired. I have since heard the shortfall was in the tracking App which had been corrected (but have not verified).
Web searches found dozens products promising everything I could want, but they are (still) in the development phase.
Then I stumbled across Tractive, they offered a reduced price for purchasing a pair (I have two dogs) and the tracking service, not the least expensive I have seen, was reasonable when paying for two years in advance. Yes it was a risk on an unknown quantity, but it did workout for me.
The device is very small and lightweight. Neither of my dogs notice it on their collars. I did have to get thinner collars before getting the retention clips (it comes with two sizes) to fit. So far they have been very secure (the company advertises a collar that fully encloses the device), but I would like to see how secure the clips are for dogs running through the brush.
Battery life has been very good, about four days in the normal update mode. The App gives you a reading of battery status. Charging takes about 2.5 hours and is easy to connect to the charger.
How often it updates position appears to be a function of how much they move around. When they are sleeping etc the update period can be as long as 20 minutes. Normal activities like walking it drops to every 5 minutes or so.
The beauty of this device is the Live Tracking feature. While it pulls the battery down faster, it is the best reason to buy this device. It toggles on/off (remotely from the App) in less than a minute. Updates are once per second or so, if gives the units speed and height above sea-level (with the premium service) and the App map shows a solid red line of the pets progress. Thus you can toggle Live Tracking on/off to conserve power. It is so accurate I could tell which side of the road they were walking on. It also proves a feature that turns on a small LED light so night location is easier.
They advertise that rain does not affect the integrity of the unit.
So far I am very satisfied with my purchase.
As side note, when my wife drove to Ohio, the devices both functioned flawlessly the entire trip. I have heard stories of pets getting away at rest stops or follows accidents and not being found before the family had to stop looking. This device would reduce this risk.

Fast_Eagel01 about Tractive GPS for Dogs and Cats, v1.5.5