Just a few months after fitness tech brand Coros brought its first cycle computer to market to compete with the big three of Garmin, Wahoo, and Hammerhead, another cycling computer has arrived.

Branded Jespr, it is designed and assembled in Switzerland, priced at €570, and offers a large 4-inch touchscreen with the same 480 x 800 pixel resolution as the Hammerhead Karoo and the new Garmin Edge 1050, making it the best It appears to go head-to-head with cycling computers.

Additionally, a built-in SIM card slot allows users to access mobile data while riding without the need for a smartphone or Wi-Fi connection. Jesuple will use this to provide additional data on the device, including wind speed and direction, and software updates.

The latest update to the hammerhead Karoo removes the SIM card slot found on the previous Karoo 2. Jespr is offering early buyers a free data plan until the end of 2025. After that, the monthly cost will be about €5.

Jespr's computers offer different display modes to suit different riding styles and can be used with multiple bike profiles, according to the company.

These modes include a race mode with a simplified data screen, which includes a screen of key race milestones displayed in a linear style that mimics the race guides that the pros stick on their stems. This could be used, for example, to show feed zones, key climbs, changes of direction, when to take gels, etc.

The training display provides metrics focused on power output. A power meter can be connected, but without a power meter, the Jesper computer estimates power output in real time based on other metrics.

Other features are similar to competitors, including uphill gradient profiles, comprehensive navigation, turn alerts, and rerouting if off course. It can also display the terrain of a selected route and connect your Jespr account to Strava, Komoot, and other third-party cycling apps.

The Jespr computer's 4-inch touchscreen is larger than competitors', and even the Garmin Edge 1040 and the latest Edge 1050 are only 3.5 inches. This larger screen and the array of three buttons on the lower front make the Jespr computer slightly chunkier than the Garmin Edge 1040, measuring 4 mm longer, 10 mm wider, and 5 mm deeper.

However, according to Jespr, the 25mm depth matches many handlebars and creates an aero effect when mounted in front of the bars. Of course, this is more unconfirmed than the brand claims. It uses a standard Garmin-style 1/4-turn mount.

The Jespr computer weighs 180 g, which is also slightly heavier than its competitors. Battery life is also short at 7 hours. A micro USB cable is used for charging.

The GPS constellations used are the four main ones: GPS, Glonass, Galileo, and BeiDou, with ANT+ and BLE connectivity and built-in Wi-Fi. Currently, the only supported languages are English and German.