This post is also available in: Deutsch (German)

The Teasi ONE3 Extend GPS bike computer is the top model of Kapps GmbH, Chemnitz. It is a cheap GPS bike computer. The color touch screen has 3.5 inches.

The Teasi ONE3 Extend is not just a bike computer. It is advertised as a GPS device for cycling, hiking, skiing or paddling. The 4 GB memory is expandable via Micro-SD card up to 32 GB.

The case is IPX5 splash-proof. The display is about as big as the Garmin Edge 1030. The resolution is twice as large at 480 x 800 pixels. In tests, however, the readability of the display is criticized.

The Teasi software “Tahuna” for the PC reminds of Komoot.

Advantages of the Teasi ONE3 Extend

  • Cheap
  • big display
  • not a pure bike computer

Disadvantages of the Teasi ONE3 Extend

  • Crashes of the software
  • Readability of the display
  • Reacts slowly

My evaluation

The Teasi ONE3 Extend is a useful GPS bike computer. It has all the essential features that are required. With the good price-performance ratio everyone has to decide for himself whether he accepts the weaknesses.

Cross references

A  test of the Teasi ONE3 Extend and a further test of the innovations of the software are available at gpsradler.de.