Mobile operator O2 launched a standalone 5G network across the entire Czech Republic on Thursday, November 12, covering 99.6% of the population wherever its 5G signal already reaches, Seznam reported.
O2 claims to be the first among domestic operators to do so, according to Médium.cz.
The new infrastructure, marketed as 5G+ according to Lupa.cz, runs on a dedicated 5G Standalone architecture rather than relying on legacy 4G foundations.
Nová architektura zvyšuje rychlost a stabilitu sítě
“Zásadní rozdíl oproti dosavadní 5G síti spočívá v její architektuře,” explained Jan Hruška, technical director at O2.
Unlike older non-standalone networks that use 4G infrastructure for control services, the new core allows for faster response times, higher connection stability, and lower energy consumption, according to reports by Lupa.cz and Seznam.
Mobilizujeme.cz said that maximum download speeds can reach the order of gigabits per second under ideal conditions. The upgrade also introduces Voice over New Radio technology for faster call setup times and better audio quality, SMARTmania.cz reported.
According to Lupa.cz, the operator uses technology from Nokia alongside OpenShift for the core. SMARTmania.cz added that online gamers, video callers, and users of reliability-dependent apps will benefit from the improvements.
Jak ověřit kompatibilitu zařízení pro novou síť
Customers cannot access the new network automatically with any 5G handset. Lupa.cz reported that users need a compatible device with manufacturer certification for the O2 network, an updated software version, and a supported SIM card or eSIM, alongside having 5G enabled in their settings.
Initial compatible hardware includes specific models from Vivo and Nothing, alongside the Samsung Galaxy S26 FE and Xiaomi Redmi Note 17 5G, according to Lupa.cz and SMARTmania.cz. Mobilenet.cz said that unofficial imports may lack the necessary certification. Mobilizujeme.cz added that users can check compatibility directly on their phone by dialing 105# and pressing the call button.
SIM Card Replacement Options
Mobilizujeme.cz reported that customers can check their SIM card status inside the Moje O2 application under Moje služby, Nastavení, and SIM karta.
If an existing SIM card lacks support, O2 replaces traditional plastic cards for free at any company branch, while digital eSIMs can be ordered directly through the mobile application, according to Mobilizujeme.cz. All newly issued plastic SIM cards already support the 5G+ standard.
Does the 5G+ upgrade cost extra?
Does the upgrade to 5G+ cost extra?
No, the upgrade does not change existing tariffs or add extra fees for customers, Seznam reported.
What happens to existing data limits?
Existing data volume limits and speed caps tied to a customer’s specific tariff remain in effect on the 5G+ network, according to Médium.cz.
Are iPhones currently supported on the 5G+ network?
Apple iPhones are not currently listed among the certified devices capable of running on the new standalone infrastructure, Seznam reported.
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