Hammerhead Karoo 3 Cycle Computer

Hammerhead Karoo 3 Cycle Computer
35 reviews
355.73

  • Delivery in 3-4 working days
  • Free tracked delivery to Ireland

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Pros & Cons

Pros & Cons

  • The screen is clearly readable no matter the circumstances due to the automatically adjusting backlight.
  • The Hammerhead Karoo connects to the internet via wifi, a mobile hotspot or by connecting to the Companion App.
  • Know in advance when you're nearing a climb with the special climb function, which provides information about length, gradient and duration.
  • The clear, extensive Workout Player makes training easier and more efficient.
  • The Karoo can connect to smart lights, radars, power meters, heart rate monitors, eBikes and even SRAM AXS components.
  • The Hammerhead Karoo requires recharging after about 15 hours of use.
  • The Karoo can be paired with your SRAM AXS group, but not with Shimano Di2.
Read more on what our customers have to say about this product

Specifications

Specifications

Brand Hammerhead
Touchscreen Yes
Screen size Medium 3.2 inch
Battery Life 15 hours
GPS Sensor Yes
Routeplanning Plan & upload via Smartphone
'Back-to-Start' function Yes
Surprise Me feature No
Map View Yes
All specifications

Reviews

Reviews

4.8 / 5
Average from 35 reviews
5
27 reviews
4
8 reviews
3
0 reviews
2
0 reviews
1
0 reviews

Photos from customers


Most recent reviews

5 / 5

Fine GPS, with excellent screen. OSM plus, frequency map updates concern.

- Otto 16 December 2025

After bad experience with Garmin and because of monopoly position Garmin has, I bought this GPS. Surprised positively and very nice to use. Clear and easy to read screen, and connects easily to sensors. Based on OpenStreetMap and easy to download for whole world is plus; for MTBing it does require customised map style installation (such as that of OpenAndroMaps). Only concern is the frequency the maps are updated, which seems to be once or twice a year.

Pros & Cons

Easy to use
OpenStreetMap
Screen easy to read
Cumbersome to install suitable map style
Frequency map updates
Automatic translation

5 / 5

Intuitive, smartphone-like navigation.

- Chris 3 December 2025

The Karoo 3 was an excellent choice. Good navigation and smartphone-like controls through a clear screen on my handlebars.

Pros & Cons

Easy-to-read screen
Intuitive
Navigate
Battery? (own test: -45% after 100km)
Automatic translation

5 / 5

Very satisfied

- Kathleen 30 November 2025

Works perfectly

Pros & Cons

Easy
Automatic translation

5 / 5

Top product with top price/performance ratio

- Anton 30 November 2025

Very clearly recognisable screen display and unproblematic data transfer from Komoot or google Maps.

Automatic translation

5 / 5

I can recommend it!

- Remo 27 November 2025

Great fun! All functions!

Automatic translation

5

Otto, 16 December 2025

Fine GPS, with excellent screen. OSM plus, frequency map updates concern.

After bad experience with Garmin and because of monopoly position Garmin has, I bought this GPS. Surprised positively and very nice to use. Clear and easy to read screen, and connects easily to sensors. Based on OpenStreetMap and easy to download for whole world is plus; for MTBing it does require customised map style installation (such as that of OpenAndroMaps). Only concern is the frequency the maps are updated, which seems to be once or twice a year.

  • Easy to use
  • OpenStreetMap
  • Screen easy to read
  • Cumbersome to install suitable map style
  • Frequency map updates
Automatic translation

5

Chris, 3 December 2025

Intuitive, smartphone-like navigation.

The Karoo 3 was an excellent choice. Good navigation and smartphone-like controls through a clear screen on my handlebars.

  • Easy-to-read screen
  • Intuitive
  • Navigate
  • Battery? (own test: -45% after 100km)
Automatic translation

5

Kathleen, 30 November 2025

Very satisfied

Works perfectly

  • Easy
Automatic translation

5

Anton, 30 November 2025

Top product with top price/performance ratio

Very clearly recognisable screen display and unproblematic data transfer from Komoot or google Maps.

Automatic translation

5

Remo, 27 November 2025

I can recommend it!

Great fun! All functions!

Automatic translation


Recommended by the product specialist

Recommended by the product specialist


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35 reviews 9 reviews 9 reviews 8 reviews
Touchscreen Yes Yes Yes Yes
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Battery Life 15 hours 25 hours 30 hours 120 hours
GPS Sensor Yes Yes Yes Yes
Routeplanning Plan & upload via Smartphone Plan in the Bike Computer / Plan & upload via PC / 'Back-to-Start' function / Plan & upload via Smartphone Plan in the Bike Computer / Plan & upload via PC / 'Back-to-Start' function / Plan & upload via Smartphone Plan in the Bike Computer
'Back-to-Start' function Yes Yes Yes Yes
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This product View product View product View product

All specifications

General

Brand
Hammerhead
Battery Life
15 hours
GPS Sensor
Yes
Satellite Signal
Galileo / GLONASS / GPS / QZSS / Multi-band GNSS
Training Schedule
No
Mounting materials
1 Out-Front Mount
Charging cable
USB-C
Waterproof Rating
IP67
Colour
Black

Navigation functions

Routeplanning
Plan & upload via Smartphone
'Back-to-Start' function
Yes
Surprise Me feature
No
Map View
Yes
Expandable Map
Yes
Map Updates
Yes, free
Turn by Turn Navigation
Yes
Route Recalculation
Yes
Points of Interest
Yes
Live Tracking
Yes, via phone

Sensors

Sensor Connection
ANT+ / Bluetooth Smart
Speed measurement
GPS
Speed Sensor
Yes, not included
Cadence Sensor
Compatible, not included
Heart Rate Monitor
Compatible, not included
Power Meter
Yes
Temperature Display
Yes

Connectivity

Compatible apps
Hammerhead Companion
Display smartphone notifications
Yes
Strava Live Segments
Yes
Wi-Fi
Yes
ANT+
Yes
Bluetooth
Yes

Display

Touchscreen
Yes
Screen size
Medium 3.2 inch
Full Colour Display
Yes

Compatibility

Compatible with
Smartphone

Sizes

Weight
118 grams

All specifications

Brand
Hammerhead

General

Battery Life
15 hours
GPS Sensor
Yes
Satellite Signal
Galileo / GLONASS / GPS / QZSS / Multi-band GNSS
Training Schedule
No
Mounting materials
1 Out-Front Mount
Charging cable
USB-C
Waterproof Rating
IP67
Colour
Black

Navigation functions

Routeplanning
Plan & upload via Smartphone
'Back-to-Start' function
Yes
Surprise Me feature
No
Map View
Yes
Expandable Map
Yes
Map Updates
Yes, free
Turn by Turn Navigation
Yes
Route Recalculation
Yes
Points of Interest
Yes
Live Tracking
Yes, via phone

Sensors

Sensor Connection
ANT+ / Bluetooth Smart
Speed measurement
GPS
Speed Sensor
Yes, not included
Cadence Sensor
Compatible, not included
Heart Rate Monitor
Compatible, not included
Power Meter
Yes
Temperature Display
Yes

Connectivity

Compatible apps
Hammerhead Companion
Display smartphone notifications
Yes
Strava Live Segments
Yes
Wi-Fi
Yes
ANT+
Yes
Bluetooth
Yes

Display

Touchscreen
Yes
Screen size
Medium 3.2 inch
Full Colour Display
Yes

Compatibility

Compatible with
Smartphone

Sizes

Weight
118 grams