Reviews over the

Hammerhead Karoo 3

Took a test drive with route downloaded from the internet. Perfect. Navi is much better than my previous, only 4-year-old Garmin which had already given up the ghost. I am delighted with it,.... highly recommended for me

Pros & Cons

I'm happy with the Karoo 3, unfortunately it's not possible to pair a smartwatch as a heart rate monitor these days.

The bike sat nav works perfectly, handling the device is a bit time-consuming at first. But it works perfectly and that is the most important thing...

We went to the shop to look at different navigation systems. Actually wanted to go for a Wahoo. The salesperson in the shop tried very hard but couldn't actually show us anything on the different devices because there was no range inside. That was very unfortunate. On the basis of his enthusiastic story, we opted for the Hammerhead and certainly did not regret it.

Pros & Cons

The navigation is very good and the handling is also very easy. I would buy it again, even if the price is very steep.

Still under test

Still under test

I have been using the Karoo on the road and in the forest for 2 months and approx. 1000 km. The navigation has worked perfectly so far. The display is fun: high resolution, pleasant size and you can recognise everything you need and have enough setting options to adapt it to your needs. The battery life with "standard" settings and several connected sensors (cadence, heart rate, SRAM AXS) and mobile phone is approx. 10-12 hours even in cold temperatures and can allegedly be extended to 35 hours if necessary. The internal memory is generously dimensioned. The connection to the sensors works straight away. The connection to Komoot and the synchronisation of maps or activities with Strava & Co works perfectly. So far there have been two updates with useful new features - I hope this continues... One minus point for me is the mount. The Karoo mount is very fiddly to remove. However, an adapter for a Garmin/Sigma holder is supplied. This means it works "as usual" if you are using a Sigma/Garmin. Another drawback is the excessively loud signal tone, e.g. for turn-by-turn directions, which cannot be turned down. I have deactivated it completely - fortunately it works. All in all, I can cope with the two negative points and the advantages clearly outweigh them.