Spy Spot 4G Mini GPS Tracker GL 300MA with Magnetic Waterproof Case - Hidden Portable Locator for Cars, Boats, People - Subscription Required

I say could be only because I haven't used some of the others but I have been using the Garmin GTU-10 for the last 3 years which is a very good LIVE GPS tracking service but the SpySpot TT8850 is better for several reasons.I think some of the negative reviews about this device come from people's misunderstanding of how a LIVE GPS Tracker works. There's two separate but distinct technologies needed to have LIVE GPS tracking.First is the GPS transponder, this is a passive system that simply looks for and receives signals from GPS Satellites. It needs at least 3 satellites to traingulate it's location on the earth via lattitude and longitude coordinates. This requires a clear view of the sky or close to it....being near a window in a house or car will work because the signal bounces. The software in the system then calculates things as your position, and even how fast you are moving, history, etc. The accuracy of your location is usually only within 20-50 feet - that's just how GPS works, but that should be close enough for anyone.Second is what makes it a LIVE Tracker, the device needs a way to transmit it's location to you remotely. GPS transponders don't do this on their own, they just triangulate your position and record it. So what is used in civilian applications for this? That's right - civilian cellular services, and this is why ALL LIVE GPS trackers have a monthly fee, you're paying for the cellphone service to send you the coordinates of the tracker at regular intervals, and like a cellphone battery usage is very dependent on the need to transmist via the cellular service and intervals of checkins. You cannot have a LIVE GPS Tracker without both. If you don't like paying a monthly fee for the cellular service then get a GPS recorder - which will record it's positions and allow you to download it later. If you want LIVE TRACKING than you need to pay for the service.Why the SpySpot service and TT8850 tracker is the best: After using Garmin's GTU-10 I have something to compare to. Garmin's service is very good and reliable. But here's why SpySpot is better:1. SpySpot's live tracking software on their website is rich with features that allow you to configure how you use your tracker and service. It uses Google Earth/maps, provides device location address, lat/long coordinates, speed, direction headed, signal strength, exact time, has complete history reporting, provides breacrumb trails and a host of other configurations and reporting options.2. Interval tracking only activates with motion detection - this is the best feature by far and makes the most sense. The tracker when stationary only checks in once an hour, however once it detects motion (the car or host the tracker is on starts moving) it immediately starts the live interval tracking automatically at the times you have them set it. The default is 5 mins, so every 5 mins you can get updated locations when the tracker is on the go, which are also stored in the history. You can also email SpySpot and change the interval checkins to 1 min, 2 mins, 3 minutes, whatever you want. The shorter the interval the more drag on the battery. I had them set mine to 2 mins and sure enough, the device reports it's location every 2 mins when on the move. When the device stops moving it goes back into a 'sleep' mode and one hour reports. This is what makes the battery last so long, and it's exactly the way a Live GPS tracker should work - reporting based on motion. You don't need to know the location of the device every few mins when it's not moving.3. Battery life is LONG - even at 2 minute interval checkins this device is lasting 2 weeks without the need for a recharge, very nice. I'm sure the battery will degrade over time as all batteries do but they did an excellent job of maximizing battery usage in this device.4. Comprehensive history reporting. The report functions in SpySpot's website are so good that I rarely need to even check the live tracking, usually I just go and check the reports to see where the device has been and in the reports I can see where it's been every 2 mins, it even provides breadcrumb trails showing the direction of travel and routes in the history. I believe they store the history of your device for up to 2 years.There's not many Live GPS Tracking devices on the market, especially since Garmin discontinued the GTU-10. I've looked at others and decided on the SpySpot service and am completely satisfied. People need to understand the technology and expectations before diving into something like this. If you truly understand how this technology works and realize what your expectations should be based on that, you will be completely satisfied with the SpySpot TT850.

Not as long of time as said it would of lasted but work rather well.

This device worked perfect for me. Knew where my 16 year-old child was at all times and how she was driving my car. Tells speed, hard brakes and fast turns. I saw one review where the lady said you had to purchase $59.99 dollars worth of additional software. Not true that is a one time activation fee. Which has now been lowered to $29.99. I can pick up my android and know where my child is at anytime. Gave me great peace of mind. Stuffed it down in the backseat and charged it every two weeks. She never knew. Wonder where your spouse is when he says he is working late? Put this in his car and find out.I have two of them One for each car.

The product may have been good I just could not get past the additional costs required to use it. A pricy activation fee plus monthly charge is too much.

Quick delivery, easy set up. It took me less than 30 min to activate and understand how it works. I've been using it now for 10 days and are very happy with the service. It update very frequent (I think every minute or so) and actually give a super detailed report of where the device been, for how long and even indicate the rout of the vehicle. I am very satisfied with the product and defiantly recommend it to others.

I bought this item and should have been wary on day one. First, if you read the reviews, there was only one reviewer that actually bought the item. The rest of the reviews weren't. When I opened the box, the FCC required disclosures were not in the box. All radio transmitters are required to have a disclosure that tells about interference and provides adequate radiation warnings. This has none. I quickly returned it as it did not meet the CPSC guidelines. The service fee is much higher than the competing products. I purchased PocketFinder's GPS tracker and am perfectly happy with it. At least I know the radiation levels and how far it needs to be from the body whereas this one leaves it to faith.

I originally wanted this for my cat and retro - fitted a harness to he could wear it. That didn't work out like I had hoped because it's too big. I put it in my car instead, in case it ever gets stolen. I justhave to remember to recharge it every two weeks. Web site is a really good monthly fee and has great quality real time GPS satellite image.

Battery life is short, only 3 to 4 days. While distributor claims it has 1 to 2 weeks of battery life.

Perfect