Hammerhead Karoo 2 GPS Cycling Computer (Black)

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Hammerhead Karoo 2 GPS Cycling Computer (Black)
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Hammerhead Karoo 2 Description:

The Hammerhead Karoo 2 prioritizes and elevates your riding experience. Intelligently designed to resolve limitations from other computers on the market, the Karoo 2 features a Smartphone quality touchscreen, massive internal storage, IP67 dust and waterproof rating and full cellular, bluetooth and ANT+ connectivity.

Smartphone Quality Display
The Karoo 2 brings an enhanced smartphone quality touchscreen experience to your cycling computer. Navigate maps and commands with ease thanks to the fully responsive 3.2" touch screen that boasts the largest color spectrum on the market and twice the pixel density (292PPI) of its closest rival. Dragontrail Glass with an etched matte finish ensures the Karoo 2 is durable, resilient and visible in all light conditions. Additionally, the Karoo 2 is fully controllable through buttons for whenever a touch screen is not desirable.

Intuitive Software
The Karoo 2 is designed from the ground up to offer the most user-friendly cycling computer experience. Easily create routes directly from the Karoo, or download routes from any website using the Chrome Extension, or sync and share routes through complete social media integration. On top of connecting to WIFI, bluetooth, ANT+ and GNSS sensors and devices, the Karoo 2 can even connect to cellular band coverage using a separately sold SIM card. The Karoo 2 works just as well inside as out, with Smart Trainer Support which allows the Karoo 2 to connect with, and control your smart trainer based on your workout as well as displaying its data.

Rugged Durability
Take the Karoo 2 anywhere, on any adventure without any risk to your navigation, data collection or the longevity of the Karoo 2. The body of the Karoo 2 is overmolded with a shock reducing bumper, is both dust and waterproof, and includes a waterproof SIM card cover so you can take the Karoo 2 on the gnarliest adventure without worry.


  • Dragontrail™ Glass acid etched matte finish screen increases durability, is highly scratch resistant, and reduces glare ensuring the screen is visible in all light conditions
  • Smartphone-quality touchscreen filters out false inputs from rain and mud and can be locked with a double button tap
  • Large, 3.2” screen has 292 PPI Pixel density and supports 16.7million colors for the highest quality visuals and clear, detailed maps
  • Fully water and dust proof with an IP67 rating
  • Controllable through the touchscreen or buttons for use in harsh conditions
  • Buttons feature extra grip for ease of use with gloves or sweaty hands
  • Can store 26GB of maps with 32GB total storage for workouts and more
  • Connects to all Bluetooth sensors, ANT+ sensors, Wifi, GNSS, and Global 3G and LTE cellular coverage with a SIM card (sold separately)
  • Ultra-fast and efficient Quad core 1.1Gh, CPU with 2GB of RAM delivers smooth operation and visuals
  • Sync routes and activity from your accounts on Strava, Komoot, Ride With GPS, MTB Project, easily add routes using the Karoo Route Grab Chrome extension, or upload any routes in GPX, FIT, TCZ, KML, KMZ file formats
  • Waterproof SIM card cover and USB-C charging port so you never have to worry about losing your connectivity due to harsh conditions
  • Up to 12 hours of battery life


  • Physical Dimensions: 2.3" x 3.9" x 0.75" (60.8 x 100.6 x 19.3mm)
  • Weight: 4.6oz (131g)
  • Water Rating: IP67 Fully Water and Dust Proof
  • Battery: Rechargeable Lithium-ion
  • Display size: 3.2" Diagonal
  • Display resolution: 480 x 800 pixels
  • Display: Color
  • Battery life: Up to 12 hours


  • Karoo 2 Cycling Computer
  • Karoo 2 Mounting system (fits on 31.8mm bars)
  • Quarter-Turn Mounting Adapter for aero bars
  • A 2.5mm allen key
  • USB-A to USB-C cable
  • Lanyard
  • Getting Started Guide

Learn More: Hammerhead Karoo 2 Review.

This product was added to our catalog on August 15, 2022

miguel gonzalez
Verified Owner
Thursday, Aug 31 2023 (3 months ago)
Hammerhead Karoo 2 GPS Cycling Computer (Black)
Really great Cycling computer. I would definitely recommend it to anyone. Definitely handles the sun and battery life was great after an 1:30 min ride. Only lost 10%.
Nick R.
Verified Owner
Wednesday, Aug 23 2023 (3 months ago)
Hammerhead Karoo 2 GPS Cycling Computer (Black)
Does what I need it to. My only complaint is that fingerprints are extremely visible in direct sunlight and makes reading some information difficult. I don't find the battery life limiting for my use. ~100mi max rides with little GPS use.

Do wish there was a way to mute strava segments for some rides.
David Kewer
Wednesday, May 3 2023 (7 months ago)
Hammerhead Karoo 2 GPS Cycling Computer (Black)
I purchased the Karoo 2 this in the spring last year.... and there was zero information in the promo material that advised the risk of not being compatible with Shimano. So I was shocked when I discovered this after I bought my new bike a month ago and discovered there was no syncing available. I contacted Hammerhead and their response was.... "too bad so sad". Stay away from this product.