Sigma ROX 4.0 Endurance cycling computer

Technical sheet

Sigma ROX 4.0 Endurance cycling computer

Name: Sigma ROX 4.0 Endurance cycling computer
Brand: Sigma
SKU: 140909339
Price: 87.99 EUR
Availability: InStock
Rating: 5 (7 reviews)

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7 Reviews

3 Questions

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Long

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Features of Sigma ROX 4.0 Endurance

Product description of Sigma ROX 4.0 Endurance cycling computer

Description summary

Elevate your training and conquer every ride with the SIGMA ROX 4.0 Endurance. This robust GPS cycling computer is your ultimate partner, providing precise data to push your limits. Track your speed, distance, and elevation with its GPS and barometric altimeter. Stay connected with smartphone notifications via Bluetooth and the SIGMA RIDE app, and pair with ANT+ sensors for advanced performance analysis. Built for adventure, it boasts up to 25 hours of battery life and a durable, weatherproof design, ensuring you´re ready for any challenge

Conquer Every Ride with the SIGMA Rox 4.0 Endurance Cycling Computer

The SIGMA Rox 4.0 Endurance cycling computer is your ultimate training partner, designed to help you push limits and achieve your cycling goals. This robust and feature-packed device provides comprehensive data tracking, intuitive navigation, and seamless connectivity, all in a sleek and durable design.

Navigate Uncharted Territory: Explore new routes with confidence thanks to the Rox 4.0´s integrated GPS and GLONASS technology. Experience precise location tracking and reliable navigation, whether you´re conquering mountain passes or navigating city streets.

Train Smarter, Ride Further: Take your training to the next level with the Rox 4.0´s advanced performance metrics. Monitor your speed, distance, altitude, and heart rate with precision, and analyze your data to optimize your efforts. The integrated barometric altimeter provides accurate elevation data, allowing you to track your ascents and descents with ease.

Stay Connected, Stay Motivated: Seamlessly connect your Rox 4.0 to your smartphone via Bluetooth and the SIGMA RIDE app. Receive call and message notifications on the go, and share your rides with friends and family. The ANT+ compatibility allows you to pair the computer with compatible power meters and other sensors for even more detailed performance analysis.

Built for Endurance: Designed to withstand the rigors of intense training and challenging conditions, the Rox 4.0 boasts a robust and weatherproof construction. The long-lasting battery ensures you stay powered up for even the longest rides, while the intuitive button interface and high-contrast display provide easy access to all essential functions, even while wearing gloves.

Key Features:

* GPS and GLONASS: Precise location tracking and reliable navigation.
* Barometric Altimeter: Accurate elevation data for tracking ascents and descents.
* Heart Rate Sensor Belt Compatibility: Monitor your heart rate zones and optimize your training intensity.
* ANT+ and Bluetooth Connectivity: Seamlessly connect with smartphones, sensors, and other devices.
* Daily Activity Tracker: Track your steps, calories burned, and sleep quality, even off the bike.
* Long Battery Life: Up to 25 hours of runtime, perfect for extended adventures.
* Weatherproof and Durable Design: Built to withstand the elements and the demands of intense cycling.

Technical Specifications:

* Display: 1.77" transflective color display
* Battery Life: Up to 25 hours
* Water Resistance: IPX7
* Weight: 51 grams
* Connectivity: Bluetooth, ANT+
* Sensors: GPS, GLONASS, Barometric Altimeter

The SIGMA Rox 4.0 Endurance cycling computer is the perfect companion for cyclists of all levels who demand accurate data, reliable navigation, and intuitive functionality. Elevate your training, explore new horizons, and conquer every ride with the Rox 4.0.

Specifications

Manual

Technical specifications of Sigma ROX 4.0 Endurance

Dimensions

44,9 X 73,6 X 18,4 Mm
Weight

51 G
Display Type

Transflective
Screen Size

2.4´´
Resolution

Main Display: 59 X 23
Wireless Connectivity

Ant+ Ble
GPS

Yes
Battery Life

41 Hours
Battery Type

550 Mah (Li Ion), 3.7 V
Compass

Yes
Barometric Altimeter

Yes
Thermometer

Yes
Storage

Up To 100 H Training
Livetrack

Yes
Water Resistance Rating

Ipx7
Smart Notifications

Yes
Speed

Yes
Max Speed

Yes
Average Speed

Yes
Distance

Yes
Color

Clear
Features

GPS
Features

Glonass
Features

Altimeter
Features

Barometer
Features

Heart Rate Sensor Belt
Features

Daily Activiy Tracker
Product Type

Cycle Computers

Features of Sigma ROX 4.0 Endurance

Color Clear

Color

Clear

Features GPS

Features

GPS

Glonass

Altimeter

Barometer

Heart Rate Sensor Belt

Daily Activiy Tracker

Product Type Cycle Computers

Product Type

Cycle Computers

Key differentiators

Dual Bluetooth and ANT+ connectivity for pairing with smartphones and a wide range of sensors.

Extended 25-hour battery life for endurance rides and multi-day tours.

Integrated GPS and barometric altimeter for precise tracking of route, speed, and elevation.

IPX7 water-resistance rating for reliable performance in extreme weather conditions.

Supports heart rate monitor pairing for in-depth fitness insights and training optimization.

Technology in Sigma ROX 4.0 Endurance cycling computer

Energy rating

Warnings

4.71 / 5

7 Reviews

What our customers are saying about Sigma ROX 4.0 Endurance cycling computer

This cycling computer offers essential bike navigation and tracking with excellent battery life, making it ideal for amateur cyclists and touring. Enjoy a clear, easily visible display, quick satellite connection, and reliable performance. Its compact design is perfect for keeping your smartphone free. The device seamlessly connects with e-bikes and accessories. While the interface takes a little getting used to, users appreciate the long-lasting battery and the useful route-following feature. Some minor improvements in auto-start and app connection stability are noted, but overall, it´s a great value GPS bike computer

Good bike computer

2026/02/24

Marc

Simple cycle computer, it´s what I was looking for, no frills, with plenty of functions and clearly visible digits

Great gps for bikes

2025/03/06

roberto

Excellent GPS for bikes, essential in its functions but more than sufficient for amateur and cycle tourism use. Not very intuitive to use Sigma RIDEAPP and Sigma DATA CENTER. Excellent interaction with Komoot. Quick to turn on and hook up to satellites. Some delay or advance in signaling turns and in correctly measuring kilometers: on 70 km effective (measured with other GPS) the Sigma marks me 75 km. Apart from this the only negative point is that you can only enter one route at a time. Spectacular battery life: after three days of travel, following and recording a track I still have 60% charge left! Ultimately an excellent purchase with an excellent quality/price ratio.

Good "simple" gps bike computer with long battery duration

2025/02/17

Tristan

Product works well, and the simple trace line to follow the route is more usefull then you would think, if you have a phone or something else nearby as a backup for diffivult situations. Battery duration is very long, as advertised. Temp sensor builtin is also a nice extra. Some things could be made more logically: the device knows and announces it is moving, but it can't autostart an activity. Long press right to save an activity but short middle press to start one can sometimes be a bit confusing. The android app tends to forget it's connections to komoot and strava now and then.

Fantastic

2024/12/05

Paco

Good God, basic but with everything you need, long-lasting battery, backlight. I recommend it, it connects with the Ebike (Giant) and external accessories quickly. Excellent Tradeinn service!

Very satisfied

2024/08/23

First getting used to the interface, but then very satisfied. Battery lasts a long time. After 5 full days of cycling still more than 30% left.

Perfect

2024/08/21

Denis

Excellent product. Easy to use and very good battery life. Ergonomic smartphone application and link with the komoot site very appreciable. Great little travel companion. Very satisfied.

Small and fine

2024/06/29

denis

Small, useful computer, especially if you don't want to use your smartphone all the time. Very good battery life!

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Include AI Generated questions and answers

2026-07-20

Generated by AI and verified

What kind of connectivity options does the Sigma Rox 4.0 Endurance offer?

Answer of Generated by AI and verified

The Sigma Rox 4.0 Endurance is equipped with both Bluetooth and ANT+ connectivity. This allows it to connect to your smartphone for notifications via the SIGMA RIDE app and also pair with external sensors for more detailed performance analysis.

* Generated by AI based on customer and product data

2026-07-20

Generated by AI and verified

Does the Sigma Rox 4.0 have a built-in GPS?

Answer of Generated by AI and verified

Yes, the Sigma Rox 4.0 Endurance is GPS enabled. It uses both GPS and GLONASS technology to provide precise location tracking, reliable navigation, and accurate data for your speed and distance.

* Generated by AI based on customer and product data

2026-07-20

Generated by AI and verified

Can I use the Sigma Rox 4.0 for tracking my heart rate during training?

Answer of Generated by AI and verified

Yes, you can. While the device itself does not measure heart rate, it is compatible with heart rate sensor belts via its ANT+ and Bluetooth connectivity. By pairing it with a compatible sensor, you can monitor your heart rate data directly on the device during your rides.

* Generated by AI based on customer and product data

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Frequently bought together

Best sellers

Use cases

Long-Distance Endurance Rides & Sportives 95% Fit

With a 25-hour battery life, this device is built to last through full-day epics and multi-day events without needing a recharge. The transflective display ensures clear visibility from dawn until dusk, making it a reliable partner for long hours in the saddle.

25-hour battery life,Transflective display,GPS enabled

Structured Training & Performance Analysis 90% Fit

This computer is a great all-rounder for structured training, offering ANT+ and Bluetooth connectivity for heart rate monitors and other sensors. The integrated altimeter provides crucial elevation data, allowing for detailed post-ride analysis of climbing efforts and overall performance.

ANT+ and Bluetooth connectivity,Heart rate monitor compatibility,Barometric altimeter

All-Weather Commuting & Year-Round Riding 85% Fit

The IPX7 water resistance rating means this device can handle heavy rain and challenging weather, making it a dependable choice for year-round commuters. Its robust build ensures your ride data is safe, no matter the conditions.

IPX7 water resistance,GPS enabled,Transflective display

Gravel Riding & Backroad Exploration 80% Fit

For riders exploring new gravel paths and backroads, the built-in GPS provides reliable route tracking and navigation guidance. The long battery life and durable, water-resistant construction make it a solid performance upgrade for adventurous rides off the beaten path.

GPS enabled,25-hour battery life,IPX7 water resistance

Hill Climb Training 75% Fit

The integrated barometric altimeter delivers accurate, real-time elevation and gradient data, which is essential for pacing efforts on climbs. Pairing this with a heart rate monitor via ANT+ or Bluetooth allows for precise tracking and analysis of climbing performance.

Barometric altimeter,Heart rate monitor compatibility,GPS enabled

Best for

Best for Data-Driven Upgraders

This computer offers a significant upgrade with its altimeter, GPS, and ANT+/Bluetooth connectivity for heart rate monitoring, providing the detailed performance data needed for structured training.

The product features an altimeter, GPS, and supports heart rate monitors via ANT+ and Bluetooth, which are key for cyclists focused on performance analysis and training optimization.

Ideal for All-Weather

With an IPX7 water resistance rating, this device is protected against heavy rain and immersion, ensuring reliable operation for daily commutes regardless of the weather.

The IPX7 rating ensures protection against immersion in water up to 1 meter for 30 minutes, making it suitable for extreme weather conditions often encountered during commutes.

Great for Long-Distance Touring

The 25-hour battery life supports extended rides without frequent recharging, while the GPS provides essential navigation and location tracking for exploring new routes.

A 25-hour battery life is suitable for long rides, and the GPS Enabled feature enhances navigation and safety, which is ideal for touring.

Perfect for Riders

Featuring both Bluetooth and ANT+ connectivity, this computer easily syncs with smartphones and a wide range of fitness sensors, catering to users who want a connected cycling experience.

The combination of Bluetooth for smartphone integration and ANT+ for sensor compatibility allows for easy data transfer and comprehensive performance tracking, aligning with a high score for Smart Connectivity & Integration.

Benefits

FunctionalConnect All Your Devices for a Smarter Ride

Effortlessly sync your cycling computer with a wide range of external sensors and your smartphone. This allows you to consolidate all your performance data, from heart rate to speed, into one central hub for comprehensive ride analysis and tracking.

connectivity: Bluetooth

connectivity: ANT+

FunctionalRide Longer Without Worrying About Battery Life

With an impressive 25-hour battery life, you can confidently embark on long-distance tours, multi-day adventures, or marathon training sessions without the constant need to recharge. This endurance allows you to focus on your ride, not your battery gauge.

battery_life: 25 hours

FunctionalTrain Confidently in Any Weather Condition

Engineered with an IPX7 water resistance rating, this device is protected against immersion in water up to 1 meter for 30 minutes. This ensures your cycling computer remains fully functional through heavy downpours, splashes, or even accidental drops in water, giving you peace of mind on every ride.

water_resistance: IPX7

FunctionalTrain Smarter with Real-Time Heart Rate Data

By connecting to a compatible heart rate monitor, this device allows you to track your cardiovascular effort in real-time. This data is crucial for training within specific heart rate zones, helping you improve fitness, manage intensity, and maximize the effectiveness of every workout.

heart_rate_monitor: Yes

FunctionalTrack and Analyze Every Climb with Precision

The integrated altimeter provides accurate elevation data, allowing you to monitor your ascent, descent, and current altitude in real-time. This feature is invaluable for cyclists who love climbing, enabling detailed post-ride analysis of vertical gain and pacing strategies on hilly terrain.

altimeter: Yes

gps_enabled: Yes

Ideal buyer profiles

The Competitive Cyclist

This rider is focused on performance, training, and data analysis. They participate in long-distance rides, races, or structured training programs and need a reliable device to track their metrics and progress over time.

With a 25-hour battery life, the Sigma Rox 4.0 Endurance is built for long training sessions and events. The inclusion of GPS and an altimeter provides precise location and elevation data, while ANT+ and Bluetooth connectivity seamlessly pair with a heart rate monitor and other external sensors for comprehensive real-time ride analytics.

The Data-Driven

This individual uses their bike for daily transportation and is interested in tracking their journey metrics for efficiency, fitness, and safety. They value reliability in all weather conditions and easy integration with their smartphone.

The IPX7 water resistance rating ensures the device performs reliably even in the rain. GPS functionality allows for accurate tracking of commute routes and distances, while Bluetooth connectivity enables smart notifications and easy data syncing, contributing to a safer and more connected ride.

The Adventurer

This cyclist loves exploring new routes and is passionate about using technology to enhance their rides. They want a device that not only tracks performance but also integrates smoothly with various apps and sensors to create a connected cycling ecosystem.

The dual ANT+ and Bluetooth connectivity offers maximum flexibility, making it easy to connect to a wide range of sensors and sync data with popular cycling apps. The GPS and built-in altimeter are perfect for navigating and tracking new adventures, while the 25-hour battery ensures it will last for the entire journey.

Competitive features

When choosing a cycling computer, it's important to weigh the features that matter most for your riding style. We're looking at how the Sigma Rox 4.0 Endurance stacks up against other options in the market, focusing on its core functionalities and intended use.

Where it excels

The Sigma Rox 4.0 Endurance stands out with its impressive battery life, lasting up to 25 hours, making it a reliable partner for long-distance rides and multi-day adventures without frequent charging. | It offers robust connectivity options, including Bluetooth for smartphone notifications via the SIGMA RIDE app and ANT+ for pairing with external performance sensors, catering to data-driven cyclists. | With its built-in GPS and barometric altimeter, this device provides essential ride data such as speed, distance, and elevation, making it a comprehensive tool for tracking and analyzing performance.

Consider alternatives if...

Cyclists who require highly detailed, on-screen map visuals for complex navigation might find the simple trace line navigation of the Rox 4.0 Endurance to be basic. Alternatives may offer more advanced mapping capabilities. | Riders who prefer an extremely intuitive, out-of-the-box experience may want to explore other options, as the user interface of the Rox 4.0 Endurance can take some time to get used to.

Verdict

The Sigma Rox 4.0 Endurance is a strong contender for amateur and endurance cyclists who prioritize long battery life, essential ride metrics, and solid sensor connectivity. Its combination of GPS, an altimeter, and smartphone integration provides significant value. While its navigation is more simplistic and the interface has a learning curve, its core function as a durable training partner is excellent for those who don't require advanced, turn-by-turn visual mapping.

Specs comparison