SKU: 16276893318

SIGMA GPS Bike Computer - ROX 4.0 Black Basic

Sale price$89.95 Regular price$99.95
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Description

SIGMA GPS Bike Computer - ROX 4.0 Black BasicOVERVIEW ROX 4. 0 GPS Bike Computer is a GPS computer for cyclists who are looking for altitude measurements in addition to essential GPS computer functions. ROX 4. 0 Black Basic Contains: Bike computer, GPS mount, USB C cable, quick start instructions. LARGE, EASY TO READ DISPLAY: 2. 4" diagonal high contract display is easy to read even between rides. Display shows current speed and time all the time. Rest of the values can be customized up to six

OVERVIEW

ROX 4.0 GPS Bike Computer is a GPS computer for cyclists who are looking for altitude measurements in addition to essential GPS computer functions.

ROX 4.0 Black Basic Contains:
Bike computer, GPS mount, USB-C cable, quick start instructions.

LARGE, EASY TO READ DISPLAY: 2.4" diagonal high contract display is easy to read even between rides. Display shows current speed and time all the time. Rest of the values can be customized up to six views, each with three values.

ESSENTIAL FUNCTIONS: The ROX 4.0 bike computer has functions such as altitude profile, speed, distance, and training time, navigation information, and connection to an e-bike. 

INTEGRATED AIR PRESSURE SENSOR: ROX 4.0 uses barometric readings to determine inclines and declines and provide you with reliable information about altitude, allowing a precise recording of your track. 

MORE MEASUREMENTS: ROX 4.0 can be easily connected to additional sensors using ANT+ and BLE, for measuring speed, heart rate, and cadence.

KOMOOT: You can integrate ROX 4.0 with your smartphone, so that you can leave it in your pocket. You will receive turn by turn navigation from Komoot app on your ROX 4.0.

RED CIRCLE: ROX 4.0 display has an interesting red circle on top right corner for displaying training data.

GET STARTED RIGHT AWAY: ROX 4.0 can be installed on your bike handlebar in easy to follow steps, without needing any mount cables or sensors.

INTUITIVE OPERATION: ROX 4.0 can be operated easily with just 3 buttons.

CONNECTIVITY: ROX 4.0 uses GPS and GLONASS for position tracking. SIGMA RIDE app can be used for personalizing display views, and for collecting and managing training data.

EASY POSITIONING: ROX 4.0 can be positioned for convenient overview of values using the overclamp butler (not included), even for handlebars with short stem. Fits on handlebars of 31.8mm and 35mm diameter. 

E-BIKE READY: The ROX 4.0 GPS can establish a connection to the compatible e-bike system and show you the current assist mode, battery status, and light and other data on the display. 

LIVE DATA ANALYSIS: Ride data can be recorded and immediately analyzed with SIGMA RIDE app's LIVE view. 

SMART NOTIFICATIONS: ROX 4.0 can receive notifications of messages and calls on your smart phone.

FEATURES

General:

Dimension (W x L x H) 44.9 x 73.6 x 18.4 mm
Mount compatibility GPS Mount, Overclamp Butler
Weight 51gm
Water resistance IPX7
Battery 550 mAh (Li Ion), 3.7V
Display size 2.4"
Resolution (pixel) Main display: 59 x 23
Color display / Number of colors 2
Display Technology Transflective
Typical battery life 25 hours
Connectivity ANT+, BLE
Navigation Turning guidance
Back to starting point arrow
Other Backlight
Smart notifications
E-Bike Ready
Sensors GPS
GLONASS
Barometric Height measurement
Ambient Light sensor
Sensor Technology Cadence
Heart Rate
Speed
Training:
Preinstalled sport profiles 1
Individually adjustable sport profiles 1 (Further sport profiles can be saved in the app)
Individually adjustable training pages up to 6
Individually adjustable number of training values per page 3
Templates for training views 1
Auto pause
Data Analysis SIGMA DATA CENTER
SIGMA RIDE APP
Memory up to 100h training
File Format: .fit

FUNCTIONS

Basic Functions
Speed
Average speed
Maximum speed
Distance
Training time (net)
Calories
Clock (12/24 hrs)
E-Bike functions
Range
E-bike battery
Human Power vs. Motor Power
Support level
Light
Navigation functions
Heading
Turning guidance

    Status Functions
    Current temperature
    Device battery status
    Compass

    Altitude Functions
    Current altitude
    Gradient (in %)
    Altitude graph
    Altitude uphill
    Cadence functions
    Cadence
    Average cadence
    Maximum cadence
    Heartrate functions
    Current heart rate
    Average heart rate
    Maximum heart rate
    Maximum heart rate (in % )
    Intensity zones

    VIDEOS

    ROX 4.0 - BASIC OPERATIONS

    ROX 4.0 - ALTITUDE CALIBRATION

    ROX 4.0 - KOMOOT CONNECTION

    ROX 4.0 - SENSOR CONNECTION

    ROX 4.0 - PAIRING TO A SMARTPHONE

    ROX 4.0 - E-BIKE CONNECTION

    ROX 4.0 - GPS MOUNT

    ROX 4.0 - OVERCLAMP BUTLER

    INSTALLATION SENSORS - DUO MAGNETLESS CADENCE

    INSTALLATION SENSORS -DUO MAGNETLESS SPEED

    PARTS

    Following parts can be purchased separately.

    Rox 4.0 Full set with sensors
    Computer with HR set
    Duo Magnetless Speed Transmitter
    Duo Magnetless Cadence Transmitter
    Comfortex+ Chest Strap
    R1 Duo Comfortex+ transmitter incl. chest strap
    GPS Mount For Rox 7/11,2/4/11.1 Evo
    Overclamp Butler for Rox 2.0 / 4.0 / 11.1 Evo

     

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 16276893318

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    mark miller
    Boise, US
    ★★★★★ 3
    Delay was not as bad as originally told
    Size: 33W x 34L, Color: Dark Stonewash
    My original review was the pants were delayed 2 days with zero explanation other than sorry & was not posted because it did not meet the community standards, no cursing was included. They did jump through it & delivered the next day not 2 days. The pants were my 1st wranglers in a long time & apparently run larger than the Levi's that I normally wear so I returned for a smaller waist & length that came very quickly & seem good for the money.
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    Reviewed in the United States on March 8, 2026
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    Russell Friedman
    Birmingham, US
    ★★★★★ 5
    Excellent para Dunga
    Size: 44W x 28L, Color: True Blue
    Nice pair fit perfectly as advertised quality
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    Turtle Food
    Lake Worth, US
    ★★★★★ 5
    Big Guy comfort at Lil guy price.
    Size: 58W x 30L, Color: Lieutenant
    Being a bigger guy I can't go to Walmart or Target and find pants at me it seems to be a problem I have no matter where I go. And going to a big and tall store is extremely expensive. But I found these jeans here on Amazon and I ordered them not only did they fit comfortably I could breathe in them I could move I could bend I could squat I've even gone to work in these and been comfortable throughout the day they didn't cling to me they were the most comfortable pants I had in a long long time. I wore these jeans so often that finally after actually a couple of years I wore right through them I like ripped right out of them but the material with everything I do and I work in shipping and receiving the material lasted a good two and a half years with constant wear and tear so the material is strong it stretchy to go with moving around and breathed with me kept me warm on the Dock,and they made me look good. Washed them regularly and that didn't wear them out either. Overall for any big boys out there a 10/10.
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    Reviewed in the United States on July 6, 2025
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    ckrank424
    Draper, US
    ★★★★★ 5
    Fits well and well made
    Size: 46W x 29L Big, Color: Coast - Gray Fleece Lined
    Hubby needed new jeans. I wanted a lighter color but these work just fine. They look good, fit well, and appear well made
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    Reviewed in the United States on March 24, 2026
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    BJC
    Omaha, US
    ★★★★★ 4
    Made in Mexico
    Size: 52W x 29L, Color: Lieutenant
    Made in Mexico. Good fit. Wondering if there will be much shrinkage.
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    Reviewed in the United States on March 18, 2026

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