Mercury average speeds at busy times (source: MBNZ Report 23, March 2025) are:
Spark national average speeds for Wireless Broadband at busy times measured using Smart Modem 2 (source: MBNZ Report 23, March 2025) are:
You may experience a higher or lower speed than this.
Factors that may influence your speed include the device you are using and its capabilities, your operating system and web-browser, if you’re connecting wirelessly to your router, and the number of devices connecting via WiFi. If your plan uses a wireless connection, then factors such as the distance you are from a cell tower, the network capability and the overall use of that cell tower by other consumers can impact the speed experienced. If you have a router supplied by Mercury, this router is capable of providing the estimated peak time average speeds, subject to the factors described above. If you are using a router not supplied by Mercury, you may not receive the stated speeds. For wireless broadband, you must use the router supplied by Mercury.