---
product_id: 488898273
title: "ROX 4.0 GPS Bike Computers, Black, Altitude, Navigation, Large Display, Easy 3 Button Operation, E-Bike Ready, Smart Phone Connectivity, Lightweight, IPX7 Water Resistant (Computer Only)"
brand: "sigma"
price: "S$228"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/488898273-rox-4-0-gps-bike-computers-black-altitude-navigation-large
store_origin: SG
region: Singapore
---

# 2.4" display ANT+ & BLE connectivity GPS & GLONASS tracking ROX 4.0 GPS Bike Computers, Black, Altitude, Navigation, Large Display, Easy 3 Button Operation, E-Bike Ready, Smart Phone Connectivity, Lightweight, IPX7 Water Resistant (Computer Only)

**Brand:** sigma
**Price:** S$228
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Elevate Your Ride with SigmaROX 4.0!

## Quick Answers

- **What is this?** ROX 4.0 GPS Bike Computers, Black, Altitude, Navigation, Large Display, Easy 3 Button Operation, E-Bike Ready, Smart Phone Connectivity, Lightweight, IPX7 Water Resistant (Computer Only) by sigma
- **How much does it cost?** S$228 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/488898273-rox-4-0-gps-bike-computers-black-altitude-navigation-large)

## Best For

- sigma enthusiasts

## Why This Product

- Trusted sigma brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Stay Connected:** Receive notifications for calls and messages right on your bike computer.
- • **Easy Installation:** No hassle setup on handlebars of 31.8mm and 35mm diameter.
- • **Customizable Display:** Personalize your data views with up to six customizable screens.
- • **Navigate with Confidence:** Turn-by-turn navigation from Komoot app keeps you on track.
- • **Comprehensive Data Tracking:** Monitor speed, heart rate, and cadence with additional sensors.

## Overview

The SigmaROX 4.0 GPS Computer is a cutting-edge bike computer designed for serious cyclists. It features a 2.4" high-contrast display, ANT+ and BLE connectivity for additional sensors, and GPS/GLONASS tracking for precise navigation. With easy installation and customizable data views, it’s perfect for tracking your performance and staying connected on the go.

## Description

ROX 4.0 GPS Bike Computers, Black, Altitude, Navigation, Large Display, Easy 3 Button Operation, E-Bike Ready, Smart Phone Connectivity, Lightweight, IPX7 Water Resistant (Computer Only)

## Features

- ALTITUDE & NAVIGATION: 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. 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.
- EASY TO USE: 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. ROX 4.0 display has an interesting red circle on top right corner for displaying training data. ROX 4.0 can be operated easily with just 3 buttons.
- FUNCTIONS: ROX 4.0 can be connected to extra sensors using ANT+ and BLE, for measuring speed, heart rate, and cadence. ROX 4.0 can establish a connection to the compatible e-bike system and show current assist mode, battery status, and light and other data. Basic has Computer, GPS mount, USB-C cable. Full Set (sold separately) has: Computer, GPS mount, USB-C cable, Overclamp butler GPS, Duo Magnetless Speed Sensor, Duo Magnetless Cadence Sensor, Comfortex + Chest Strap, RI Duo HR Transmitter.
- CONNECTIVITY: 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. 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. Ride data can be recorded and immediately analyzed with SIGMA RIDE app's LIVE view. ROX 4.0 can receive notifications of messages and calls on your smart phone.
- EASY INSTALLATION: ROX 4.0 can be installed on your bike handlebar in easy to follow steps, without needing any mount cables or sensors. 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.

## Images

![ROX 4.0 GPS Bike Computers, Black, Altitude, Navigation, Large Display, Easy 3 Button Operation, E-Bike Ready, Smart Phone Connectivity, Lightweight, IPX7 Water Resistant (Computer Only) - Image 1](https://m.media-amazon.com/images/I/71X4n5Sp6VL.jpg)

## Available Options

This product comes in different **Style** options.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sg/products/488898273-rox-4-0-gps-bike-computers-black-altitude-navigation-large](https://www.desertcart.sg/products/488898273-rox-4-0-gps-bike-computers-black-altitude-navigation-large)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-20*