Sigma ROX 4.0 Black Endurance Bike Computer with Full Graphic Display, Bluetooth & ANT+ 01066

With up to 25 hours of battery life and a 2.4-inch full graphic display, the Sigma ROX 4.0 keeps every ride data point visible at a glance. Its GPS, GLONASS, and Galileo support ensure reliable positioning, while barometric altitude measurement adds precise elevation data to your training.

Overview

The Sigma ROX 4.0 is a wireless bike computer built for endurance cyclists who demand accurate tracking and seamless connectivity. The device pairs with Bluetooth and ANT+ sensors for speed, cadence, and heart rate, and syncs with the Sigma RIDE app for data analysis and firmware updates. A 3-button interface and IPX7 water resistance make it practical for all-weather riding.

What stands out

• Full graphic display with backlight for clear readability in any light
• Barometric altimeter for accurate altitude and gradient data
• Turn-by-turn navigation via Komoot app connection
• Rechargeable lithium-ion battery with up to 25 hours of runtime
• Compatible with ANT+ and Bluetooth sensors

Technical details

• Display: 2.4-inch full graphic display with backlight
• Connectivity: Bluetooth, ANT+
• Satellite systems: GPS, GLONASS, Galileo
• Sensors: Speed, cadence, heart rate (via ANT+/Bluetooth)
• Battery: Rechargeable lithium-ion, up to 25 hours
• Water resistance: IPX7
• Mount: GPS mount (standard)
• Data transfer: Sigma RIDE app via Bluetooth
• Temperature measurement: Yes
• User interface: 3 buttons

Our verdict

The Sigma ROX 4.0 delivers essential training metrics in a robust, easy-to-use package. Its long battery life and reliable connectivity make it a solid companion for long endurance rides.