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ULTRA5G, the new brand name for U Mobile’s 5G experience, is powered by our next generation 5G network. It includes:
ULTRA5G Reserve is an advanced 5G capability designed for differentiated performance, providing exclusive access to a dedicated, priority slice in our ULTRA5G network.
During network peak periods, ULTRA5G Reserve helps deliver faster and more stable performance compared to standard users on the same network.
ULTRA5G Reserve is available to customers on selected ULTRA Business Reserve plans. This is included as part of the selected plan.
When connected to the ULTRA5G Standalone (SA) network, ULTRA5G Reserve allows your data traffic to be handled with higher priority during network peak periods.
This can help deliver:
No. ULTRA5G Reserve does not guarantee a specific speed or bandwidth.
Actual performance may vary depending on factors such as:
However, during peak periods, ULTRA5G Reserve is designed to deliver better performance compared to standard users on the same network.
To enjoy ULTRA5G Reserve, you must use a 5G Standalone (SA) compatible smartphone.
For iPhone 15 models or newer and software updated to iOS 26.4 or later, access to the ULTRA5G Standalone (SA) network require a SUCI-enabled SIM or any eSIM activated after March 2025.
If your device does not support 5G SA, you will still enjoy U Mobile ULTRA5G. Click here to upgrade to a 5G SA device to enjoy ULTRA5G Reserve.
ULTRA5G Reserve works only when your device is connected to the ULTRA5G Standalone (SA) network.
ULTRA5G Reserve will not be available if your device connects to:
If you require further assistance, you can get in touch with us via the following channels.
We'll get back to you soon.
Find the nearest Enterprise Business Partner to you.
Get in touch with your Key Account Manager for urgent assistance.
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