Hammerhead Karoo 3 Cycle Computer

Hammerhead Karoo 3 Cycle Computer
29 reviews
373,34

  • Delivery in 5-6 working days
  • Free tracked delivery to Finland

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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

4.7 / 5
Average from 29 reviews
5
21 reviews
4
8 reviews
3
0 reviews
2
0 reviews
1
0 reviews

Photos from customers


Most recent reviews

4 / 5

Top product especially considering the price paid for it

- Tim 5 November 2025

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

Clear display and screens
High reaction speed
User-friendly
Automatic translation

5 / 5

A top appliance

- Josef 28 October 2025

An excellent device that shines with a super display. The built-in rechargeable battery has a long service life and I think the price-performance ratio is unbeatable!

Automatic translation

5 / 5

Great cycling navigation.

- Richard 11 October 2025

Great navigation that does its job instantly. GPS signal is found in no time and off you go! The crystal-clear screen is amazing. It is a pity that the accompanying app, which in itself works fine, has fewer options than I had expected. No overview of kilometres ridden in a period, number of rides per period, calories burned and so on. But apart from that, nothing but praise.

Pros & Cons

Ease of use
Super-bright screen
No database with monthly overview and such
User manual in English only
Automatic translation

5 / 5

Great screen for navigation

- Bjorn 6 October 2025

After several years of Garmin, I switched to this Karoo (3). If you don't need extensive training options, this is a perfect device

Pros & Cons

Display brightness
Format
User-friendliness
Automatic translation

4 / 5

Good BC, would buy it again.

- Dennis 28 September 2025

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

Automatic translation

4

Tim, 5 November 2025

Top product especially considering the price paid for it

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

  • Clear display and screens
  • High reaction speed
  • User-friendly
Automatic translation

5

Josef, 28 October 2025

A top appliance

An excellent device that shines with a super display. The built-in rechargeable battery has a long service life and I think the price-performance ratio is unbeatable!

Automatic translation

5

Richard, 11 October 2025

Great cycling navigation.

Great navigation that does its job instantly. GPS signal is found in no time and off you go! The crystal-clear screen is amazing. It is a pity that the accompanying app, which in itself works fine, has fewer options than I had expected. No overview of kilometres ridden in a period, number of rides per period, calories burned and so on. But apart from that, nothing but praise.

  • Ease of use
  • Super-bright screen
  • No database with monthly overview and such
  • User manual in English only
Automatic translation

5

Bjorn, 6 October 2025

Great screen for navigation

After several years of Garmin, I switched to this Karoo (3). If you don't need extensive training options, this is a perfect device

  • Display brightness
  • Format
  • User-friendliness
Automatic translation

4

Dennis, 28 September 2025

Good BC, would buy it again.

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

Automatic translation

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Recommended by the product specialist


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This 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