Connection quality & speed

  • How fast is the internet connection with WonderSim?

    The connection speed depends on the country and the local network – 4G/LTE is usually available, and in some cases 5G is also available.

  • What should I do if I have poor reception?

    Restart your device or briefly switch on flight mode. Reception can vary in some regions, especially in rural areas.

  • Is 5G available?

    Thanks to our partners worldwide, we offer 5G connectivity in several countries.

    WonderSIM 5G now works on all:

    • Android 5G devices*
    • Windows 5G devices
    • Apple 5G devices running iOS 16 (and newer versions)

    List of countries where Ubigi 5G is available:

    • South Africa (MTN)
    • Germany (Telefonica)
    • Andorra (Andorra Telecom)
    • Saudi Arabia (Zain Saudi Arabia)
    • Austria (A1 Telekom, H3G)
    • Bahrain (Zain)
    • Belgium (Orange (Mobistar), Telenet)
    • Brazil (TIM Brasil)
    • Bulgaria (A1 Telekom, Yettel, Vivacom)
    • Canada (Bell, Telus)
    • Cyprus (Epic)
    • Congo-Brazzaville (MTN)
    • South Korea (SK Telecom)
    • Croatia (Telemach)
    • Denmark (H3G, Telia)
    • United Arab Emirates (Du)
    • Spain (Orange Spain)
    • Estonia (EMT)
    • USA (T-Mobile)
    • Finland (Telia (Sonera))
    • France (Bouygues Telecom, Free Mobile, SFR)
    • Greece (Nova)
    • Hong Kong (H3G Hong Kong)
    • Hungary (Yettel)
    • Indonesia (Indosat Ooredoo)
    • Ireland (H3G, Meteor)
    • Iceland (Siminn)
    • Israel (Hot Mobile, Pelephone)
    • Italy (Iliad, WindTre)
    • Japan (KDDI, NTT DoCoMo)
    • Jordan (Zain Jordan)
    • Kuwait (STC, Zain Kuwait)
    • Latvia (LMT)
    • Liechtenstein (Salt)
    • Lithuania (Telia)
    • Luxembourg (Orange)
    • Malta (Epic)
    • Monaco (Monaco Telecom)
    • Montenegro (One Montenegro)
    • Norway (Telia)
    • New Zealand (Spark, 2 Degrees)
    • Oman (Omantel)
    • Netherlands (KPN)
    • Philippines (Smart)
    • French Polynesia (Vodafone)
    • Poland (Orange, Play)
    • Portugal (Meo (TMN))
    • Qatar (Vodafone Qatar)
    • Czechia (O2 Czech Republic)
    • Romania (Orange Romania)
    • United Kingdom (EE, H3G)
    • Senegal (Sonatel-Orange)
    • Singapore (StarHub, Simba)
    • Slovakia (O2 Slovakia)
    • Slovenia (Telemach)
    • Sweden (H3G, Telia)
    • Switzerland (Salt)
    • Taiwan (FET)
    • Thailand (True Move)
    • Tunisia (Orange Tunisie)
    • Turkey (Turk Telecom)
    • Ukraine (Du)
    • Vietnam (VNPT)
    • This list is not yet complete and will be updated regularly.