TomTom 5100 product was an expensive mistaken purchase, offered poor value in use from start to finish:

1. IN USE
-slow to boot up (takes minutes)
-mounting on windscreen insecure
-map / traffic cameras update process poor
-battery charge retention /lifetime is poor
-no user serviceable way to replace battery
-replacement battery is expensive
-using battery replacement kit is fraught (damage a real possibility if you DIY ) ...Read more

I paid a premium price in 2016 for one product feature: the Live Traffic updates. But what i didn't know was that this feature relied on the operation of the 2G phone network in Australia. There is no mention of this requirement anywhere in the manual or the packaging materials or the live promotions on TVSN. Why is this important?? Because Telstra and Vodafone announced closure of their 2G services in 2014 and 2015 respectively (press releases from both companies are available on the internet), that is, 18 months and 6 months respectively ...Read more

My first GPS was bought in 2003, an Italian made PDA with navigational software, whose name escapes me. This was followed by Navman PiN (2005), then an HP IPAQ (2007) with Tom Tom software, then a Garmin Nuvi 1350 (2010) and now a TomTom GO 5100LMT (2016).
This unit is superior in every way to anything I have had before, obviously time improves the technical capabilities but in terms of software design and implementation, it is powerful and easy to use. The windscreen mount is superior to any I have had or seen before.
After 4 months use I ha...Read more

While the device was working the it was fantastic, as a matter of fact, it was a life saver. It diverted you around accidents and general heavy traffic. I truly though at one point I might have had a little crush on this machine.

Then along came our one year anniversary. Now I know everyone says that the honey moon period can’t last forever. But you truly believe that maybe they just hadn’t found the right one, that they might of settled for second best or had been hasty during the dating period. Not at one point do you actually believe whe...Read more

Purchased from Harvey Norman, 8 Jun 2016
This is my third Tom Tom. I purchased this one to upgrade my old ones, as their batteries are dead, and I wanted a GPS for driving in Australia, the USA, EU, and Asia. The Tom Tom 5100 promised to provide lifetime world maps and lifetime speed camera updates.
Having used the 5100 in Australia and USA, I rate it as just OK and not as good as earlier Tom Toms or other GPS Maps. The maps are generally accurate, but lack details, especially in USA, and the speed and red light updates are only for Australia...Read more

I recently upgraded from a TomTom 730 and have been wowed by my new 5100. The first surprise was a 25% discount on the new price because I am an existing customer. Just ring TomTom and order by phone. I didn't want a bigger screen as I'm in a car, not a truck so the 5100 fits in better. I use my GPS overseas as well as in Australia and also use Speed Camera alerts, so the cost of my 5100 is much the same as I paid for all the annual software updates I would load to my old unit. The 5100 for me is effectively free!

What else do I love? The...Read more

After some major initial issues - like Europe maps would not load - in actual use in France the device was pretty good.

The in car mount is just fantastic. Really easy to un-clip, do some searches, re-clip, engage guidance.

The ability to create a route on a laptop, research desired way points using Google Maps, separately update the TT route and way points, and then transfer route to the TT via USB also worked well. However at times the GO 5100 refused to connect to the laptop. Windows 7 would then decide the USB port had malfunctio...Read more

This is my first GPS navigator, hence I am not comparing it with other brands (except perhaps Google map).

I bought this device from Harvey Norman after having read good reviews about it on a GPS review website. Spent 3 weeks trying to get TomTom Services (Traffic, Speed Camera warning and MyDrive) to work, only to have eventually found out that the sim card requires activation with TomTom. Customer service personnel was excellent and efficient in troubleshooting my device.

No problem with free maps and traffic updates via computer. I hav...Read more

If you aren't going to travel around, then the world maps are of little use to you. So don't buy it!

***** The good:

Free world lifetime maps (excellent value).

The sim card is very effective at downloading traffic information (at least every 2 minutes).
The sim card also acts as a port from your phone (can be anywhere) system using TT my drive - instant download of my places - pre planned routes etc. You don't have to use the GPS's menu if you don't want to.

Spoken instructions are much better at pronouncing street names. ...Read more

Having used Garmin nuovi and now discarding because of the expensive map updates, I ventured to the Tomtom GO510 and was pleasantly surprised. The registration had a hitch (don't have unit plugged into computer at the beginning) but now hunky dory.
The screen is big, easy to read and switching between options is easy. The touch screen feature works well and the speed camera warning is accurate albeit it close to the fixed revenue raisers.
Instructions are clear and accurate with a couple of strange pronunciation examples (no more than the ...Read more

The 5100 had the lifetime maps, speed cameras etc, sim with free data, and a large screen so it ticked the boxes I thought I needed ticked. I was wrong.

The unit I had for the last 4 years has more features, more poi's, the poi's are customisable and it's user friendly.but the battery was dying and i needed to purchase a map update so the math of it said I need to upgrade. I figured the 5100 would be the same but with the sim, data for traffic and updates, with the bigger high res screen etc. It turned out to have none of the old features a...Read more